MIKROE-3830

U S E R MAN UAL PAGE 1 f o r K i n e t i s C A PA C I T I V E mikromedia 4 for Kinetis CAPACITIVE U S E R M A N U A L Thank you for choosing Mikroe! We present you the ultimate multimedia solution for embedded development. Elegant on the surface, yet extremely powerful on the inside, we have designed it to inspire outstanding achievements. And now, it’s all yours. Enjoy premium. Time-saving embedded tools Ta b l e o f c o n t e n t s Introduction 5 5.2 RF 20 1.Key microcontroller features 6 5.3 USB 21 1.1 MCU programming/debugging 8 5.4 1x26 pin headers 22 1.2 MCU reset 8 6. Sound-related peripherals 24 9 6.1 Piezo buzzer 24 2. Power supply unit 2.1 Detailed description 10 6.2 Audio CODEC 25 2.2 Voltage reference 10 6.3 Audio connectors 25 2.3 PSU connectors 11 7. Sensors and other peripherals 26 2.4 Power redundancy & UPS 14 7.1 Ambient light sensor 26 2.5 Powering up the board 14 7.2 Digital motion sensor 26 3. Capacitive display 16 7.3 IR receiver module 27 4. Data storage 18 7.4 RGB LED 27 4.1 microSD card slot 18 7.5 Temperature sensor 28 4.2 External flash storage 18 7.6 Real-time clock (RTC) 28 5. Connectivity 19 What’s next 19 5.1 Ethernet 30 mikromedia 4 for Kinetis CAPACITIVE is a compact sensor, piezo-buzzer, battery charging functionality, SD- development board designed as a complete solution for Card reader, RTC, and much more, expanding its use beyond the rapid development of multimedia and GUI-centric the multimedia. Two standardized 1x26 pin headers expose applications. By featuring a 4.3” capacitive touch screen the available MCU pins to the user, adding another layer of driven by the powerful graphics controller that can display expandability. By using mikromedia 4 shield, connectivity the 24-bit color palette (16.7 million colors), along with a can be further expanded with several mikroBUS™ sockets, DSP-powered embedded sound CODEC IC, represents a additional connectors, peripherals, and so on. perfect solution for any type of multimedia application. The usability of mikromedia 4 does not end with its ability At its core, there is a powerful 32-bit MK66FX1M0VLQ18 to accelerate the prototyping and application development microcontroller (referred to as “host MCU” in the following stages: it is designed as the complete solution which can text), produced by NXP, which provides sufficient processing be implemented directly into any project, with no additional power for the most demanding tasks, ensuring fluid graphical hardware modifications required. Four mounting holes performance and glitch-free audio reproduction. (3.2mm / 0.126”) at all four corners allow simple installation with mounting screws. For most applications, a nice stylish However, this development board is not limited to casing is all that is needed to turn the mikromedia 4 multimedia-based applications only: mikromedia 4 for Kinetis development board into a fully functional, high-performance, CAPACITIVE (“mikromedia 4” in the following text) features feature-rich design. USB, Ethernet, RF connectivity options, digital motion 1. Key microcontroller features At its core, mikromedia 4 for Kinetis CAPACITIVE uses the MK66FX1M0VLQ18 MCU. MK66FX1M0VLQ18 is the 32-bit ARM® Cortex®-M4F core. M CU s F E AT U RE S unit (FPU), a complete set of DSP functions, and a memory protection unit (MPU) for elevated application security. /100 DMA features include: GPIO PORT SDHC ∫ 1.25 MB of Flash memory ∫ 256 KB of SRAM For the complete list of MCU features, please refer to the MK66FX1M0VLQ18 datasheet EXTERNAL BU S FLASH 1MB ch) 2 x DAC (12- bit) 4 x DAC (6-b it) 2 x ADC (16- ARM Cortex™-M 4 x TIM (20 bit) Floating-po int unit SRAM 256 KB FlexMemory Among many peripherals available on the host MCU, key ∫ Operating frequency up to 180 MHz PAGE 6 JTAG & SW ETH. MAC 10 MK64FN1M 4 SET 1 x I2S WDG RTC 0VDC12 POWER / RE DSP LS/FS LS/FS/HS 65xxUA UART RT 3 x SPI 4 x I2C 2 x CAN Figure 1: MK66FX1M0VLQ18 MCU block schematic This MCU is produced by NXP, featuring a floating-point mikromedia 4 for Kinetis CAPACITIVE U S E R M A N U A L 1.1 Microcontroller programming/debugging The host MCU can be programmed and debugged over the JTAG/SWD compatible 2x5 pin header (2), labeled as PROG/DEBUG. This header allows an external programmer (e.g. CODEGRIP or mikroProg) to be used. To enable the JTAG interface, SMD jumper labeled as JP4 (3) must be populated. These jumpers are unpopulated by default, optimizing the pin count so that more pins could be used for a large number of onboard MC U s F E AT U RE S modules and peripherals. 1 Programming the microcontroller can also be done by using the bootloader which is preprogrammed into the device by default. All the informations about the bootloader software can be found on the following page: www.mikroe.com/mikrobootloader PAGE 8 5 1.2 MCU reset 4 The board is equipped with the Reset button (4), which is located on the front side of the board. It is used to generate a LOW logic level on the 3 microcontroller reset pin. The reset pin of the host MCU is also routed to 2 the pin 1 of the 1x26 pin header (5), allowing an external signal to reset the device. Figure 2: Front and back partial view mikromedia 4 for Kinetis CAPACITIVE U S E R M A N U A L 2. Power supply unit The power supply unit (PSU) provides clean and regulated power, necessary for proper operation of the mikromedia 4 development board. The host MCU, along with the rest of the peripherals, demands regulated and noise-free power supply. Therefore, the PSU is carefully designed to regulate, filter, POWE R S U P P LY and distribute the power to all parts of mikromedia 4. It is equipped with three different power supply inputs, offering all the flexibility that mikromedia 4 needs, especially when used on the field or as an integrated element of a larger system. In the case when multiple power sources are used, an automatic power switching circuit with predefined priorities ensures that PAGE 9 the most appropriate will be used. The PSU also contains a reliable and safe battery charging circuit, which allows a single-cell Li-Po/Li-Ion battery to be charged. Power OR-ing option is also supported, providing an uninterrupted power supply (UPS) functionality when an external or USB power source is used in combination with the battery. mikromedia 4 for Kinetis CAPACITIVE U S E R M A N U A L Figure 3: Power supply unit view POWE R S U P P LY 2.1 Detailed description 2.2 Voltage reference The PSU has a very demanding task of providing power for the host MCU The MCP1501, a high-precision buffered voltage reference from Microchip and all the peripherals onboard, as well as for the externally connected is used to provide a very precise voltage reference with no voltage drift. It peripherals. One of the key requirements is to provide enough current, can be used for various purposes: the most common uses include voltage avoiding the voltage drop at the output. Also, the PSU must be able to references for A/D converters, D/A converters, and comparator peripherals support multiple power sources with different nominal voltages, allowing on the host MCU. The MCP1501 can provide up to 20mA, limiting its use switching between them by priority. The PSU design, based on a set of exclusively to voltage comparator applications with high input impedance. high-performance power switching ICs produced by Microchip, ensures a Depending on the specific application, either 3.3V from the power rail, very good quality of the output voltage, high current rating, and reduced or 2.048V from the MCP1501 can be selected. An onboard SMD jumper electromagnetic radiation. labeled as REF SEL offers two voltage reference choices: At the input stage of the PSU, the MIC2253, a high-efficiency boost regulator ∫ REF: 2.048V from the high-precision voltage reference IC IC with overvoltage protection ensures that the voltage input at the next ∫ 3V3: 3.3V from the main power supply rail stage is well-regulated and stable. It is used to boost the voltage of lowvoltage power sources (a Li-Po/Li-Ion battery and USB), allowing the next stage to deliver well-regulated 3.3V and 5V to the development board. A set of discrete components are used to determine if the input power source requires a voltage boost. When multiple power sources are connected P A G E 10 at once, this circuitry is also used to determine the input priority level: externally connected 12V PSU, power over USB, and the Li-Po/Li-Ion battery. The transition between available power sources is designed to provide uninterrupted operation of the development board. The next PSU stage uses two MCP16331, highly integrated, high-efficiency, fixed frequency, step-down DC-DC converters, capable of providing up to 1.2A. Each of the two buck regulators is used to supply power to the corresponding power supply rail (3.3V and 5V), throughout the entire development board and connected peripherals. mikromedia 4 for Kinetis CAPACITIVE U S E R M A N U A L 2.3 PSU connectors As explained, the advanced design of the PSU allows several types of power sources to be used, offering unprecedented flexibility: when powered by a Li-Po/Li-Ion battery, it offers an ultimate degree of autonomy. For situations where the power is an issue, it can be powered by an external 12VDC power supply, connected over the 5.5mm barrel connector or over the two-pole screw terminal. Power is not an issue even if it is powered over the USB cable. It can be powered over the USB-C connector, using power supply delivered by the USB HOST (i.e. personal computer), USB wall There are three power supply connectors available, each with its unique purpose: ∫ CN4: USB-C connector (1) ∫ TB1: Screw terminal for an external 12VDC PSU (2) POWE R S U P P LY adapter, or a battery power bank. 2.3.1 USB-C connector The USB-C connector (labeled as CN4) provides power from the USB host (typically PC), USB power bank, or USB wall adapter. When powered over the USB connector, the available power will depend on the source capabilities. Figure 4: Power supply connectors view 2 1 3 mikromedia 4 for Kinetis CAPACITIVE U S E R M A N U A L P A G E 11 ∫ CN6: Standard 2.5mm pitch XH battery connector (3) Maximum power ratings, along with the allowed input voltage range in the case when the USB power supply is used, are given in the table Figure 5: An external 12V power supply can be connected over the 2-pole screw USB power supply Input Voltage [V] MIN 4.4 terminal (labeled as TB1). When using an external power supply, it is Output Voltage [V] Max Current [A] Max Power [W] MAX 5.5 2.3.2 12VDC screw terminal 3.3 1.2 3.96 5 1.2 6 3.3 & 5 0.7 & 0.7 5.81 possible to obtain an optimal amount of power, since one external power supply unit can be easily exchanged with another, while its power and operating characteristics can be decided per application. The development board allows a maximum current of 1.2A per power rail (3.3V and 5V) when using an external 12V power supply. The screw terminal is a good choice when there is no connector installed at the end of the PSU cable. Figure 5: USB power supply table POWE R S U P P LY Maximum power ratings, along with the allowed input voltage range in the When using a PC as the power source, the maximum power can be obtained case when the external power supply is used, are given in the table Figure 6: if the host PC supports the USB 3.2 interface, and is equipped with USB-C connectors. If the host PC uses the USB 2.0 interface, it will be able to External power supply provide the least power, since only up to 500 mA (2.5W at 5V) is available in that case. Note that when using longer USB cables or USB cables of low quality, the voltage may drop outside the rated operating voltage range, P A G E 12 causing unpredictable behavior of the development board. Input Voltage [V] MIN MAX 10.6 14 Output Voltage [V] Max Current [A] Max Power [W] 3.3 1.2 3.96 5 1.2 6 3.3 & 5 1.2 & 1.2 9.96 Figure 6: External power supply table NOTE If the USB host is not equipped with the USB-C connector, a Type A to Type C USB adapter may be used (included in the package). When connecting an external power supply over the screw terminal, make sure that the polarity of the wires is matched with the 12VDC connector on the development board, according to the marked pins of screw terminal. mikromedia 4 for Kinetis CAPACITIVE U S E R M A N U A L NOTE 2.3.3 Li-Po/Li-Ion XH battery connector When powered by a single-cell Li-Po/Li-Ion battery, mikromedia 4 offers an Maximum power ratings along with the allowed input voltage range when option to be operated remotely. This allows complete autonomy, allowing the battery power supply is used, are given in the table Figure 7: it to be used in some very specific situations: hazardous environments, agricultural applications, etc. a range of single-cell Li-Po and Li-Ion batteries to be used. The PSU of Input Voltage [V] MIN MAX 3.5 4.2 Output Voltage [V] Max Current [A] Max Power [W] 3.3 1.2 3.96 5 1.1 5.5 3.3 & 5 0.6 & 0.6 4.98 mikromedia 4 offers the battery charging functionality, from both the USB connector and the 12VDC/external power supply. The battery charging circuitry of the PSU manages the battery charging process, allowing the optimal charging conditions and longer battery life. The charging process is indicated by BATT LED indicator, located on the front of mikromedia 4. The PSU module also includes the battery charger circuit. Depending on the operational status of the mikromedia 4 development board, the charging current can be either set to 100mA or 500mA. When the development Figure 7: Battery power supply table POWE R S U P P LY The battery connector is a standard 2.5mm pitch XH connector. It allows Battery power supply board is powered OFF, the charger IC will allocate all available power for the battery charging purpose. This results in faster charging, with the charging charging current will be set to approximately 100 mA, reducing the overall power consumption to a reasonable level. NOTE Using low-quality USB hubs, and too long or low-quality USB cables, may cause a significant USB voltage drop, which can obstruct the battery charging process. mikromedia 4 for Kinetis CAPACITIVE U S E R M A N U A L P A G E 13 current set to approximately 500mA. While powered ON, the available 2.4 Power redundancy and uninterrupted power supply (UPS) The PSU module supports power supply redundancy: it will automatically switch to the most appropriate power source if one of the power sources fails or becomes disconnected. The power supply redundancy also allows for an uninterrupted operation (i.e. UPS functionality, the battery will still provide power if the USB cable is removed, without resetting mikromedia 4 P A G E 14 POWE R S U P P LY during the transition period). 2.5 Powering up the mikromedia 4 board After a valid power supply source is connected (1) in our case with a singlecell Li-Po/Li-Ion battery, mikromedia 4 can be powered ON. This can be done by a small switch at the edge of the board, labeled as SW1 (2). By switching it ON, the PSU module will be enabled, and the power will be distributed throughout the board. A LED indicator labeled as PWR indicates that the mikromedia 4 is powered ON. mikromedia 4 for Kinetis CAPACITIVE U S E R M A N U A L P A G E 15 POWE R S U P P LY 2 1 Figure 8: Battery power supply connection mikromedia 4 for Kinetis CAPACITIVE U S E R M A N U A L 3. Capacitive display A high-quality 4.3” TFT true-color display with a capacitive with the host controller. This advanced multi-touch panel touch panel is the most distinctive feature of the mikromedia 4. controller supports gestures, including zoom and swipe in all The display has a resolution of 480 by 272 pixels, and it can four directions. C APACIT IVE D ISP LAY display up to 16.7M of colors (24-bit color depth). The display of mikromedia 4 features a reasonably high contrast ratio Equipped with high-quality 4.3” display (2) and the multi- of 500:1, thanks to 10 high-brightness LEDs used for the touch controller that supports gestures, mikromedia 4 backlighting. represents a very powerful hardware environment for building various GUI-centric Human Machine Interface (HMI) The display module is controlled by the SSD1963 (1) graphics applications. driver IC from Solomon Systech. This is a powerful graphics coprocessor, equipped with 1215KB of frame buffer memory. It also includes some advanced features such as the hardware P A G E 16 accelerated display rotation, display mirroring, hardware windowing, dynamic backlight control, programmable color and brightness control, and more. The capacitive multi-touch panel, based on the FT5216 CTP controller, allows the development of interactive applications, offering a touch-driven control interface. The touch panel controller uses the I2C interface for the communication mikromedia 4 for Kinetis CAPACITIVE U S E R M A N U A L 2 1 Figure 9: Display and SSD1963 view Figure 10: MicroSD card slot view P A G E 18 DATA STO RAGE 4. Data storage The mikromedia 4 development board is equipped with two types of storage memory: with a microSD card slot and a Flash memory module. 2 1 4.1 microSD card slot 4.2 External flash storage The microSD card slot (1) allows storing large amounts of data externally, on a microSD memory card. It uses the Secure digital input/output interface (SDIO) for communication with the MCU. The microSD card detection circuit is also provided on the board. The microSD card is the smallest SD Card version, measuring only 5 x 11 mm. Despite its small size, it allows tremendous amounts of data to be stored on it. In order to read and write to the SD Card, a proper software/firmware running on the host MCU is required. mikromedia 4 is equipped with the SST26VF064B Flash memory (2). The Flash memory module has a density of 64 Mbits. Its storage cells are arranged in 8-bit words, resulting in 8Mb of non-volatile memory in total, available for various applications. The most distinctive features of the SST26VF064B Flash module are its high speed, very high endurance, and very good data retention period. It can withstand up to 100,000 cycles, and it can preserve the stored information for more than 100 years. It also uses the SPI interface for the communication with the MCU. mikromedia 4 for Kinetis CAPACITIVE U S E R M A N U A L 5. Connectivity mikromedia 4 offers a huge number of connectivity options. It allows mikromedia 4 to connect to an Ethernet network over its shield as It includes support for the Ethernet, RF and USB (HOST/ TX and RX lines are routed to the 1x26 pin headers (2). mikromedia 4 is DEVICE). Besides those options, it also offers two 1x26 pin equipped with two LED indicators, which are located on the front side. They are used to signal status and data traffic. headers, which are used to directly access the MCU pins. 5.1 Ethernet frame formats, loopback modes support, auto-negotiation, automatic polarity detection and correction, link status change wake-up detection, vendor specific register functions, support for the reduced pin count RMII interface, and much more. mikromedia 4 for Kinetis CAPACITIVE U S E R M A N U A L 1 Figure 11: 1x26 pins-header view P A G E 19 Ethernet is a popular computer networking technology for local area networks (LAN). Systems communicating over Ethernet divide a stream of data into individual packets, known as frames. Each frame contains source and destination addresses and error-checking data so that damaged data can be detected and re-transmitted. This makes the Ethernet protocol very popular for communication over longer distances or in noisy environments. The host MCU features an integrated Ethernet peripheral module, which contains the entire communication stack on-chip. The physical layer is provided by the LAN8720A (1), an RMII 10/100 Mbit Ethernet PHY IC from Microchip. This IC has many useful features, including flexPWR® technology with a flexible power management architecture and a support for various low-power modes, compliance with ISO 802-3/IEEE and IEEE802.3/802.3u 2 5.2 RF mikromedia 4 offers communication over the world-wide ISM radio band. The ISM band covers a frequency range between 2.4GHz and 2.4835GHz. This frequency band is reserved for industrial, scientific, and medical use (hence the ISM abbreviation). In addition, it is globally available, making it a perfect alternative to WiFi, when the M2M communication over a short distance is required. mikromedia 4 uses the nRF24L01+ (1), a single-chip 2.4GHz transceiver CO N N E CT IVIT Y with an embedded baseband protocol engine, produced by Nordic Semiconductors. It is a perfect solution for ultra-low power wireless applications. This transceiver relies on the GFSK modulation, allowing data rates in the range from 250 kbps, up to 2 Mbps. The GFSK modulation is the most efficient RF signal modulation scheme, reducing the required bandwidth, thus wasting less power. The nRF24L01+ also features a proprietary Enhanced ShockBurst™, a packet-based data link layer. Besides other functionalities, it offers a 6-channel MultiCeiver™ feature, which allows using the nRF24L01+ in a star network topology. The P A G E 20 nRF24L01+ uses the SPI interface to communicate with the host MCU. Along the SPI lines, it uses additional GPIO pins for the SPI Chip Select, Chip Enable, and for the interrupt. The RF section of the mikromedia 4 also features a small chip antenna (2), reducing the need for additional hardware components. 2 1 mikromedia 4 for Kinetis CAPACITIVE U S E R M A N U A L 5.3 USB The host MCU is equipped with the USB peripheral module, allowing simple USB connectivity. USB (Universal Serial Bus) is a very popular industry standard that defines cables, connectors, and protocols used for communication and power supply between computers and other devices. mikromedia 4 supports USB as HOST/DEVICE modes, allowing the development of a wide range of various USB-based applications. It is equipped with the USB-C connector, which offers many advantages, compared to earlier types of USB connectors (symmetrical design, higher CO N N E CT IVIT Y current rating, compact size, etc). The USB mode selection is done using a monolithic controller IC. This IC provides Configuration Channel (CC) detection and indication functions. To set up mikromedia 4 as the USB HOST, the USB PSW pin should be set to a LOW logic level (0) by the MCU. If set to a HIGH logic level (1), mikromedia 4 acts 3 mikromedia 4 for Kinetis CAPACITIVE U S E R M A N U A L USB-C connector (3) for the attached DEVICE. The USB PSW pin is driven by the host MCU, allowing the software to control the USB mode. The USB ID pin is used to detect the type of the device attached to the USB P A G E 21 Figure 12: RF and WiFi view as a DEVICE. While in HOST mode, mikromedia 4 provides power over the port, according to the USB OTG specifications: the USB ID pin connected to GND indicates a HOST device, while the USB ID pin set to a high impedance state (HI-Z) indicates that the connected peripheral is a DEVICE. When mikromedia 4 is working in USB HOST mode, it must not be mounted to another USB HOST (such as PC). NOTE 5.4 1x26 pin headers Most of the host MCU pins are routed to the two 1x26 pin headers (1), making them available for further connectivity. In addition to MCU pins, some additional peripheral pins are also routed to this header. Besides the ability to connect various external devices and peripherals by using wire jumpers, these pins also allow using shields with the additional mikroBUS™ sockets. This allows mikromedia 4 to be interfaced with a huge base of different Click boards™ adding many different functionalities and options, including motor drivers, buck/boost converters, sensors, and much more. For the complete list of all the Click boards™ in our offer, please visit the following PCO RONGRAMMIN N E CT IVIT YG link: www.mikroe.com/click 5V pwr. Ground Analog GPIO SPI2 P A G E 22 CAN SPI1 ETH 3.3V pwr. Ground 5V GND PTB2 PTB3 PTB4 PTB5 PTB6 PTB7 PTC19 PTA2 PTB20 PTB21 PTB23 PTB22 PTB25 PTB24 PTB10 PTB11 PTB17 PTB16 TX-N TX-P RX-N RX-P 3.3V GND 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13. 14. 15. 16. 17. 18. 19. 20. 21. 22. 23. 24. 25. 26. 27. 28. 29. 30. 31. 32. 33. 34. 35. 36. 37. 38. 39. 40. 41. 42. 43. 44. 45. 46. 47. 48. 49. 50. 51. 52. PWM Interrupt I2C UART Analog lines RST 3.3V L R L R PTE7 PTE8 PTE11 PTE12 PTA10 PTA11 PTC5 PTC6 PTC7 PTC8 PTC10 PTC11 PTC14 PTC15 PTC3 PTC4 PTB0 PTB1 GND VDC Reset 3.3V pwr. Audio OUT Audio IN PWM INTERRUPT I2C1 UART4 UART3 I2C0 Ground VCC-EXT SPI Figure 13: 1x26 pin header view mikromedia 4 for Kinetis CAPACITIVE U S E R M A N U A L P A G E 23 CO N N E CT IVIT Y 1 Figure 14: mikromedia 4 back view mikromedia 4 for Kinetis CAPACITIVE U S E R M A N U A L 1 6. Sound-related peripherals By offering a pair of sound-related peripherals, mikromedia 4 rounds-up its multimedia concept. It features a piezo-buzzer, which is extremely easy to program but can produce only the simplest sounds, useful only for alarms or notifications. The second audio option is the powerful VS1053B IC (1). It is AU D IO an Ogg Vorbis/MP3/AAC/WMA/FLAC/WAV/MIDI audio decoder, and a PCM/IMA ADPCM/Ogg Vorbis encoder, both on a single chip. It features a powerful DSP core, high-quality A/D and 2 D/A converters, stereo headphones driver capable of driving a 30Ω load, zero-cross detection with the smooth volume P A G E 24 change, bass and treble controls, and much more. 6.1 Piezo buzzer A piezo buzzer (2) is a simple device capable of reproducing sound. It is driven by a small pre-biased transistor. The buzzer can be driven by applying a PWM signal from the MCU at the base of the transistor: the pitch of the sound depends on the frequency of the PWM signal, while the volume can be controlled by changing its duty cycle. Since it is very easy to program, it can be very useful for simple alarms, notifications, and other types of simple sound signalization. Figure 15: mikromedia 4 back view mikromedia 4 for Kinetis CAPACITIVE U S E R M A N U A L decode audio streams independently while performing DSP-related tasks in parallel. The VS1053B has several key features that make this IC very popular choice when it comes to audio processing. By offering high-quality hardware compression (encoding), the VS1053B allows the audio to be recorded taking up much less space compared to the same audio information in its raw format. In combination with highquality ADCs and DACs, headphones driver, integrated audio equalizer, volume control, and more, it represents an all-around solution for any type of audio application. Along with the powerful graphics processor, the VS1053B audio processor completely rounds-up the multimedia aspects 6.3 Audio connectors AU D IO of the mikromedia 4 development board. The mikromedia 4 board is equipped with the 3.5mm four-pole headphones jack (3), allowing to connect a headset with a microphone. Two line-level 5 4 1 3 The microphone input from the 3.5mm four-pole headset jack is multiplexed with two line-level audio inputs. By using an SMD jumper (5) 6.2 Audio CODEC Resource-demanding and complex audio processing tasks can be offloaded from the host MCU by utilizing a dedicated audio CODEC IC, labeled as VS1053B (1). This IC supports many different audio formats, commonly found on various digital audio devices. It can encode and mikromedia 4 for Kinetis CAPACITIVE U S E R M A N U A L located near the headphone jack, it is possible to select which audio input will be used by the VS1053B. The choices are: LIN: two line-level inputs form the 1x26 pin header MIC: electret microphone, connected over the 3.5mm headphone jack P A G E 25 audio outputs are also available over the 1x26 pin header (4). 7. Sensors and other peripherals A set of additional onboard sensors and devices adds yet Figure 16: mikromedia 4 partial front view another layer of usability to the mikromedia 4 development OTHE R P E RIP HE RALS board. 7.1 Ambient light sensor An ambient light sensor (ALS) (1) can be used for dimming the screen intensity in low-light conditions, allowing for the lower power consumption. It can also be used to detect the proximity and turn on the screen or increase its brightness when the user approaches. The ALS sensor on the mikromedia 7 can be utilized in many ways. The LTR-329ALS-01 sensor uses the I2C interface to communicate with the host MCU. P A G E 26 7.2 Digital motion sensor The FXOS8700CQ, an advanced integrated 3-axis accelerometer and 3-axis magnetometer, can detect many different motion-related events, including the orientation event detection, freefall detection, shock detection, as well as tap, and double-tap event detection. These events can be reported to the host MCU over two dedicated interrupt pins, while the data transfer is performed over the I2C communication interface. The FXOS8700CQ sensor can be very useful for display orientation detection. It can also be used to turn mikromedia 4 into a complete 6-axis e-compass solution. The I2C slave address can be changed by 4 3 1 using two SMD jumpers grouped under the ADDR SEL label (2). mikromedia 4 for Kinetis CAPACITIVE U S E R M A N U A L 7.4 RGB LED Figure 17: mikromedia 4 partial back view 2 mikromedia 4 for Kinetis CAPACITIVE U S E R M A N U A L A high-brightness RGB LED (4) option can be used to provide visual feedback in a very simple way. There are three pre-biased bipolar transistors on each of the RGB LED segments (red, blue, and green), allowing them to be individualy dimmed by PWM pins of the host MCU. Thanks to its reasonably low power consumption compared to a TFT display, RGB LED can be used in many situations when only simple visual feedback is required (e.g. signaling that the application is in the Stand-By mode) P A G E 27 An infrared (IR) receiver (3) with the integrated PIN diode and a demodulation section allows simple control over an IR remote controller to be implemented. Thanks to the integrated demodulation section, the captured IR signal from the remote controller can be directly used by the host MCU. The TSOP6238 IR receiver module allows very simple implementation of the IR remote control option, for any application. OTHE R P E RIP HE RALS 7.3 IR receiver module 7.5 Temperature sensor The MCP9700A, an integrated low-power linear active thermistor allows measurement of the ambient temperature. This sensor provides an analog voltage which changes linearly with the applied temperature. This voltage can be sampled by the A/D converter on the host MCU, making it available for various user applications. The MCP9700A can measure the temperature within the range from -40°C to +125°C, but the actual measurement range is limited by the thermal endurance of the mikromedia 4 board itself. OTHE R P E RIP HE RALS Nevertheless, having a thermal sensor on board is very useful, allowing the development of thermal monitoring applications, weather stations, and similar. DEVELOPMENT 7.6 Real-time clock (RTC) OF MULTIMEDIA The host MCU contains a real-time clock peripheral module (RTC). The AND GUI-CENTRIC RTC peripheral uses a separate power supply source, typically a battery. To allow continuous tracking of time, mikromedia 4 is equipped with a button P A G E 28 RAPID cell battery that maintains RTC functionality even if the main power supply is OFF. Extremely low power consumption of the RTC peripheral allows these batteries to last very long. The mikromedia 4 development board is equipped with the button cell battery holder, compatible with the CR1216, APPLICATIONS CR1220 and CR1225 button cell battery types, allowing it to include a real time clock within the applications. mikromedia 4 for Kinetis CAPACITIVE U S E R M A N U A L What’s Next? You have now completed the journey through each and every feature of mikromedia 4 for Kinetis CAPACITIVE development board. You got to know its modules and organization. Now you are ready to start using your new board. We are suggesting several steps which are probably the best way to begin. 1 COMPILERS 3 COMMUNITY Easy programming, clean interface, powerful debugging, great support - our compilers come in three different flavors: mikroC PRO for ARM, mikroBASIC PRO for ARM and mikroPASCAL PRO for ARM, offering a complete rapid embedded development solution for these 3 major programming languages. www.mikroe.com/compilers/compilers-arm We invite you to join thousands of users of Mikroe development tools. You will find useful projects and tutorials and get help from a large user community. If you want to download free projects and libraries, or share your own code, please visit the Libstock website. With user profiles, you can get to know other programmers, and subscribe to receive notifications on their code. www.libstock.mikroe.com 2 PROJECTS 4 SUPPORT Once you have chosen your compiler, and since you already got the board, you are ready to start writing your first projects. We have equipped our compilers with dozens of examples that demonstrate the use of each and every feature of the mikromedia 4 for Kinetis CAPACITIVE development board. This makes an excellent starting point for future custom projects. Just load the example, read well commented code, and see how it works on hardware. Mikroe offers free Tech Support to the end of its life span, so if anything goes wrong, we are ready and willing to help. We know how important it is to be able to rely on someone in the moments when we are stuck with our projects for any reason, or facing a deadline. This is why our Support Department, as one of the pillars upon which our company is based, now also offers the Premium Technical Support to business users, ensuring even shorter time-frame for solutions. www.mikroe.com/support DISCLAIMER All the products owned by MikroElektronika are protected by copyright law and international copyright treaty. Therefore, this manual is to be treated as any other copyright material. No part of this manual, including product and software described herein, must be reproduced, stored in a retrieval system, translated or transmitted in any form or by any means, without the prior written permission of MikroElektronika. The manual PDF edition can be printed for private or local use, but not for distribution. Any modification of this manual is prohibited. MikroElektronika provides this manual ‘as is’ without warranty of any kind, either expressed or implied, including, but not limited to, the implied warranties or conditions of merchantability or fitness for a particular purpose. MikroElektronika shall assume no responsibility or liability for any errors, omissions and inaccuracies that may appear in this manual. In no event shall MikroElektronika, its directors, officers, employees or distributors be liable for any indirect, specific, incidental or consequential damages (including damages for loss of business profits and business information, business interruption or any other pecuniary loss) arising out of the use of this manual or product, even if MikroElektronika has been advised of the possibility of such damages. MikroElektronika reserves the right to change information contained in this manual at any time without prior notice, if necessary. HIGH RISK ACTIVITIES The products of MikroElektronika are not fault – tolerant nor designed, manufactured or intended for use or resale as on – line control equipment in hazardous environments requiring fail – safe performance, such as in the operation of nuclear facilities, aircraft navigation or communication systems, air traffic control, direct life support machines or weapons systems in which the failure of Software could lead directly to death, personal injury or severe physical or environmental damage (‘High Risk Activities’). MikroElektronika and its suppliers specifically disclaim any expressed or implied warranty of fitness for High Risk Activities. TRADEMARKS The MikroElektronika name and logo, the MikroElektronika logo, mikroC, mikroBasic, mikroPascal, mikroProg, mikromedia, Fusion, Click boards™ and mikroBUS™ are trademarks of MikroElektronika. All other trademarks mentioned herein are property of their respective companies. All other product and corporate names appearing in this manual may or may not be registered trademarks or copyrights of their respective companies, and are only used for identification or explanation and to the owners’ benefit, with no intent to infringe. Copyright © MikroElektronika, 2019, All Rights Reserved. S U IT E Time-saving embedded tools mikromedia 4 for Kinetis CAPACITIVE Manual (8. generacija) 3 5 0 0 0 0 0 2 4 7 5 3 7 If you want to learn more about our products, please visit our website at www.mikroe.com If you are experiencing some problems with any of our products or just need additional information, please place your ticket at www.mikroe.com/support If you have any questions, comments or business proposals, do not hesitate to contact us at office@mikroe.com