IS-S0109DEM

S0109 Single Switch Solution S0109 Single Switch Solution Revision C All Rights Reserved Worldwide NKK Switches makes no warranty for the use of these products and assumes no responsibility for any errors, which may appear in this document, nor does it make a commitment to update the information contained herein. SmartDisplay is trademark of NKK Switches. Single Switch Solution S0109 C.docx Page 1 of 24 www.nkkswitches.com • engineering@nkkswitches.com 1120 S0109 Single Switch Solution Table of Contents 1.Overview .......................................................................................................................3 2.Applications ..................................................................................................................3 3.How to Order ................................................................................................................4 S0109 Single Switch Solution 1.S0109 General Features ................................................................................................5 2.Backlighting ..................................................................................................................6 3.Hardware .......................................................................................................................7 4.Connecting to Application ............................................................................................9 IS-S0109DEM Evaluation Kit User Manual 1.General Features ...........................................................................................................10 2.Preface...........................................................................................................................10 3.Operational Overview ...................................................................................................10 4.UART communication ..................................................................................................12 5.Hardware .......................................................................................................................16 6.Schematics ....................................................................................................................18 Programming S0109 Single Switch Solution 1.Preparing the IS-S0109Dem for Programming.............................................................19 2.Preparing the MPLAB Program....................................................................................19 3.Programming the S0109 ...............................................................................................21 4.Testing...........................................................................................................................23 Warranty ..........................................................................................................................24 Single Switch Solution S0109 C.docx Page 2 of 24 www.nkkswitches.com • engineering@nkkswitches.com 1120 S0109 Single Switch Solution 1. Overview The Single Switch Solution is a compact device that can both monitor and control an industrial process independently or in conjunction with other controllers. The 36x24 pixel LCD display is capable of displaying graphics or characters while the 64 backlight color options allow for status color schemes and modes of operation. In addition to the on-board flash, capable of holding up to 64 graphic images, there are two look-up fonts (5x7 and 7x10) on board to create images based on characters. Up to 3 lines of 6 characters in font 5x7 or up to 2 lines of 4 characters in font 7x10 can be displayed. There are twelve connections that can be digital input/output or Analog input. The analog inputs can be used to check status of gauges such as temperature, pressure, voltage, amperage, oil level, gas level…etc. The digital inputs can be used to check the ON/OFF statuses of a devices or count frequency of an event. The digital output can be used to signal to turn ON or OFF a device based on preset values of the inputs. The digital input/output can also be used for communication with another device. There can be one PWM output. The switch presses can be used for toggling between the statuses and pressing and holding the switch can be used for setting up or selecting an option. SPI, I2C or UART communications are possible. EMC/ESD compliance based on the IEC 60601-11-2:2014. 2. Applications The Single Switch Solution is a plug and play controller/indicator device for use in an application with little to no technical or engineering know-how needed to install and operate. The customer would list what images, labels and actions they want to see. The device would then be programmed and preloaded with the images, actions and responses ready to be used. The customer would simply need to install the device into their application. Please contact NKK Switches with your application. If the current product does not meet your application, we can design a device to meet your requirements. Examples: • • • A Single Switch Solution is hooked up to a device that drops jellybeans into a bag and a counting sensor. When the Single Switch Solution counts out a fixed number of beans it sends signals to stop the jellybeans from dropping, move the bag out of the way, seal the bag and get the next bag. A Single Switch Solution is used to monitor two voltages and two currents. Pressing the switch steps through displaying the status of each of the four measurements. When the voltages or currents exceed a preset warning range the display blinks to warn the operator. When the voltages or currents reach a danger range not only does the display turn red it also sends signals to shut down the system. The warning and shut down values for each measurement is user defined and can be modified by pressing and holding the switch while displaying the measurement. A Single Switch Solution is hooked up to engine sensors to display fuel, water, oil, and temperature. Pressing the switch steps through and displays the four statuses. When any of the statuses are outside normal the display blinks amber to warn the operator. When any of the statuses are in the danger range the display blinks red. Single Switch Solution S0109 C.docx Page 3 of 24 www.nkkswitches.com • engineering@nkkswitches.com 1120 S0109 Single Switch Solution 3. How to Order Single Switch Solution is custom programmed for each application, so a custom part number is assigned for each application. An evaluation kit can be ordered to get the process started. The evaluation kit part number is “IS-S0109DEM” and includes: 1. One Single Switch Solution. 2. A demonstration board that has the following features: A. 4 potentiometers for analog input, B. 4 switches for digital input and C. 4 LED’s for indicate status of each digital I/O. D. The demonstration has UART to USB converter for communication. E. Connector for 2 pins for possible I2C firmware testing 3. A programming connector for reprogramming the Single Switch Solution (Require a Pickit3 from Microchip for programming). 4. A USB connection for power and communication. The evaluation kit IS-S0109DEM comes preprogrammed for demonstrating the Single Switch Solution capabilities. The suggested retail price for evaluation kit is USD$99.00 F.O.B Arizona. The information on the evaluation kit is at the end of this document. Once the customer decides on the features required for their application the requirements are evaluated by NKK and functional features are documented. Then they are sent for customer approval. One approved the firmware is written, and the custom part number is issued. The customer can place the order and receive the preprogramed Single Switch Solution for their application. The cost of writing the firmware is USD$300.00. During firmware development the customer is required to get a PIC programmer PICKit 3 (cost about $49.00). The firmware is emailed to the customer. The evaluation kit IS-S0109DEM can be used to reprogram the Single Switch Solution as well as for testing and verification of the new firmware. Single Switch Solution S0109 C.docx Page 4 of 24 www.nkkswitches.com • engineering@nkkswitches.com 1120 S0109 Single Switch Solution S0109 Single Switch Solution Firmware 2.0 1. S0109 General Features The Single Switch System is useful in many applications where complex information needs to be displayed while minimizing design and installation time and complexity. The firmware is written based on customer requirements. Contact Hassan Sajadi at 480-505-3762 or engineering@nkkswitches.com for application consultation. Features: • 36x24 pixel graphic LCD. • Can display 3 lines of 6 characters in Font 5x7, 2 lines of 4 characters in Font 7x10 or graphic. • 64 backlight colors (RGB) for various mode of operation. • 8 level of backlight brightness • Panel Mount for easy installation. • Single pole momentary switch. • Firmware is written based on customer requirements. • The connection to application is via 2x9 header (0.1”x0.1”). • Up to 12 digital input/outputs or Analog to digital converter • One PWM • I2C, SPI, or UART configurations are available upon request. • A customer has got EMC/ESD compliance based on the IEC 60601-11-2:2014 • Many interface boards are available for converting Analog/digital input to proper voltage and convert the digital I/O to proper voltage/current to sense, turn OFF and ON devices. Please contact factory with your requirement. S0109 photos Part Number Attributes: IS-S0109XXX. Each application would have a unique part number. IS-S0109 Base part number Single Switch Solution S0109 C.docx XXX Unique for each application Page 5 of 24 www.nkkswitches.com • engineering@nkkswitches.com 1120 S0109 Single Switch Solution 2. Backlighting There are two backlighting states: "ON cycle" and "OFF cycle". The duration time of OFF cycle is about 500 mS. The ON cycle is two times of duration of the OFF cycle. Both the duration of the OFF cycle and the multiple of the ON cycle to the OFF cycle can be specified by the customer. Each of the ON cycle and OFF cycle have 8 color option. The 64 backlight options are achieved by combination of ON cycle and OFF cycle. Additionally, 8 level of brightness are available. Below are the options for ON and OFF cycle: Available color for ON cycle and OFF cycle Color Red 1 OFF OFF 2 Red ON 3 Green OFF 4 Blue OFF 5 Amber ON 6 Light Blue OFF 7 Magenta ON 8 White ON The LED code is one byte. Bit=1 is for ON Bits B7 B6 B5 Cycle Must be OFF OFF zero Cycle Cycle Color 0 Blue Green Single Switch Solution S0109 C.docx Green OFF OFF ON OFF ON ON OFF ON B4 OFF Cycle RED B3 Must be zero 0 Blue OFF OFF OFF ON OFF ON ON ON B2 ON Cycle Blue B1 ON Cycle Green B0 ON Cycle RED Page 6 of 24 www.nkkswitches.com • engineering@nkkswitches.com 1120 S0109 Single Switch Solution 3. Hardware WARNING: These products are ESD sensitive. The ESD handling procedures must be followed. The Single Switch System incorporates an IS15BBFP4RGB in a Panel Mount Housing soldered to a small controller PCB. Power input: 5V or 7.5V to 15V at maximum of 35 mA Dimensions: Single Switch Solution S0109 C.docx Page 7 of 24 www.nkkswitches.com • engineering@nkkswitches.com 1120 S0109 Single Switch Solution Application Interface Header (J1) is a 9x2 header .1”x .1” for application connections. 17 15 13 11 9 7 5 3 1 18 16 14 12 10 8 6 4 2 Application Interface Header (J1) pinout Pin# Pin Name Possible Function 1 RC2 Digital/Analog 2 RC1 Digital/Analog 3 RC4 Digital/Analog 4 5 RC3 Power 6 Power 7 8 9 Ground Ground 5V Digital/Analog Input voltage 7.5V to 15V Input voltage 7.5V to 15V Ground Ground 5V output. 10 11 12 13 14 DG0 DG1 AN1 AN0 SWRD Digital/Analog Digital/Analog Digital/Analog Digital/Analog Switch output 15 DG2 Digital/Analog 16 DG3 Digital/Analog 17 AN3 Digital/Analog 18 AN2 Digital/Analog Note: Any of I/O pins can be used as SPI Single Switch Solution S0109 C.docx Notes Used as UART TX in demo unit. Do not use unless you need more than 10 I/O. Used as UART RX in demo unit. Do not use unless you need more than 10 I/O. Can be used as I2C SDA Can be used as I2C SCL If pin 9 is used as 5V power in, this pin should be connected to 5V as well If pin 9 is used as 5V power in, this pin should be connected to 5V as well If pins 5/6 are used as power in, the 5V is generated by the onboard voltage regulator. The maximum current drawn cannot exceed 10 mA. Can be used as I2C SCL Switch pin connected to MC pin with a weak pull-up. The other switch pin is connected to Ground. In the RevC a diode is placed between MC pin and the switch pin to protect the MC from external switch scan. Can be used as I2C SDA Page 8 of 24 www.nkkswitches.com • engineering@nkkswitches.com 1120 S0109 Single Switch Solution 4. Connecting to Application All the I/O pins are directly connected to the microcontroller pin. There is no safety circuit due to lack of space. If the application signals are not stable appropriate safety measures should be implemented in the application or interface board. Analog Resolution: 10 bits Analog Voltage: 0 to 5V Digital input Voltage: Vil < 0.8V, 2V < Vih< 5V Digital output Voltage: Vol < 0.6V, 4.2V < Voh Maximum output current sourced: One I/O pin 20 mA, Total for all I/O pins 50 mA Maximum current sunk: One I/O pin 20 mA, Total for all I/O pins 100 mA Some applications require an interface board for converting the Analog input to proper voltage or turning on relays that require more current. NKK has interface boards for some application. We also entertain designing interface boards for new applications. Single Switch Solution S0109 C.docx Page 9 of 24 www.nkkswitches.com • engineering@nkkswitches.com 1120 S0109 Single Switch Solution IS-S0109DEM Evaluation Kit User Manual 1. General Features The IS-S0109DEM is a demonstration unit for the Single Switch Solution. Below are the current features: • • • • Four potentiometers wired to four pins to simulate various Analog input signals. Four toggle switches and four LED’s wired to Digital In/Out to simulate digital in and digital out. USB connection for power and communication. Programming plug. 2. Preface The IS-S0109DEM is designed to demonstrate the features of the Single Switch Solution. It has four potentiometers, four toggles, and four LED’s that simulate various inputs and outputs. It has been programmed to show some of the different ways to use the Single Switch Solution. However, the firmware can be altered by NKK Switches as per customer requirements. This manual will go through the various aspects of the firmware written for demonstration of features. The UART to USB adapter on the demo unit allow communication to computer. The firmware is being written to allow varicose communication commands. The commands will be listed on the next revision. 3. Operational Overview When first turned on the IS-S0109DEM will display the NKK Switches logo. After 2 seconds it will then display the battery charge image. Pressing the button steps through each of the six simulated functions. It then loops back to the beginning. Single Switch Solution S0109 C.docx Page 10 of 24 www.nkkswitches.com • engineering@nkkswitches.com 1120 S0109 Single Switch Solution Pinout used in IS-S0109DEM Pin# Pin Name Possible Function 1 RC2 Digital/Analog 2 RC1 Digital/Analog 3 RC4 Digital/Analog IS-S0109DEM UART TX UART RX Input with weak pull up 4 5 RC3 Power PWM out 5V power in 6 Power 7 8 9 10 11 12 13 14 Ground Ground 5V DG0 DG1 AN1 AN0 SWRD Digital/Analog Input voltage 7.5V to 15V Input voltage 7.5V to 15V Ground Ground 5V output. Digital/Analog Digital/Analog Digital/Analog Digital/Analog Switch output 15 16 17 18 DG2 DG3 AN3 AN2 Digital/Analog Digital/Analog Digital/Analog Digital/Analog Image 5V power in Ground Ground 5V power in Turn LED0 on when battery is in amber color Turn LED1 on when battery is in red color Analog in. Demonstrate 10 bits analog converter Analog in. Battery Analog in Switch pin connected to MC pin with a weak pull-up. The other switch pin is connected to Ground. In the RevC a diode is placed between MC pin and the switch pin to protect the MC from external switch scan. Used to start and stop timer Used as counter Analog in. Voltmeter Analog in. Rotary 16 levels Function NKK Logo Splash Screen Operation Only seen when first turned on. Stays on only for a few seconds. Battery Charge * AN0 input is represented/displayed from 0% to 100% with green backlight. ---The warning level at which point in addition to the amber/Green backlight blink a signal is sent to DIG0 to turn ON the LED. --- The Danger level at which point in addition to the red backlight blink a signal is sent to DIG1 to turn ON the LED. AN1 input is represented/displayed from 0 to 1023 steps indicating the 10 bits analog resolution. 10 Bits Stepper 0-5 Voltmeter AN2 input is represented/displayed from 0 to 5.00V. Single Switch Solution S0109 C.docx Page 11 of 24 www.nkkswitches.com • engineering@nkkswitches.com 1120 S0109 Single Switch Solution Rotary Stepper AN3 input is represented/displayed in 16 steps 1/16 to 16/16. Timer Turns on and off by Dig 2 toggle control. Green when running and amber when stopped. Counter Counts each time the Dig 3 toggle is actuated. Resets to zero when power is off. Firmware Version The current firmware loaded on the S0109. Hold down pushbuttons to go to brightness controls. LCD Brightness Adjustment Brightness control: Adjusts the contrast (or how dark the pixels are) of the LCD. Levels 1-5. After 5 seconds of inactivity it jumps to LED Brightness Adjustment. LED Brightness Adjustment Brightness control: Adjusts the brightness of the backlight LEDs. Levels 1-5. After 5 seconds of inactivity it jumps to Firmware Version. * To select warning and danger level press and hold the switch while it is displaying “Batt Charge” till the display shows “Amber”. Then release the switch followed by press/releases to get to the desire choice (None, 5% to 90%). After 5 seconds of inactivity the danger setting appears when the display shows “RED”. Pressing and releasing the switch cycles through choices (None, 5% to (Amber choice -5%)). After 5 seconds of inactivity the chosen values are saved, and status of the battery charge functions accordingly. 4. UART communication The following UART commands UART are implemented in IS-S0109DEM. 64 images can be downloaded to flash using the Engineering Kits Communicator software. Command to download image to flash Name Command Address Image data Bytes 0x28 0x00XX 120 bytes Send Format HEX ASCII HEX ASCII HEX The valid addresses are from 0x0001 to 0x0040.Controller respond with 0x6179. Please note when downloading to flash. All the function get disabled. Single Switch Solution S0109 C.docx Page 12 of 24 www.nkkswitches.com • engineering@nkkswitches.com 1120 S0109 Single Switch Solution Command to disable all the functions Name Command Bytes 0X2161 Send Format HEX Controller respond with 0x6179 Command to enable all the functions Name Command Bytes 0x2162 Send Format HEX Controller respond with 0x6179 Command to upload the set up Name Command Bytes 0X2655 Send Format HEX Controller respond with 0x61, Battery LED amber level, Battery LED red level, Backlight brightness level, LCD contrast, 79 Command to set LED backlight brightness Name Command LED Brightness Bytes 0x2165 0x0X Send Format HEX HEX There are 8 backlight levels (0x07 to 0x00). 0x00 is the brightest level Controller respond with 0x6179 Command to set LCD contrast Name Command LCD Contrast Bytes 0x2166 0xXX Send Format HEX ASCHEX This produce the voltage for LCD. The default is 0xE0. There is no need to change this value unless for extreme temperature. Controller respond with 0x6179 Command to save the set up Name Command Bytes 0x2167 Send Format HEX Single Switch Solution S0109 C.docx Page 13 of 24 www.nkkswitches.com • engineering@nkkswitches.com 1120 S0109 Single Switch Solution Controller save LED brightness AND level, LCD contrast. Controller respond with 0x6179 Command to set amber and red color for the battery Name Command Amber % RED % Bytes 0x2155 0xXX 0xXX Send Format HEX ASCII HEX ASCII HEX The Amber present range is 0x00 to 0x63. Red percentage range is 0x00 to less than the amber range. Controller respond with 0x6179 Command to check the connection Name Command Bytes 0x01 Send Format HEX Controller respond with 0x61, Firmware version, 0x79 Command to display image from flash Name Command Image address Bytes 0x2D 0xXX Send Format HEX HEX The acceptable image address range is from 0x01 to 0x40 Controller respond with 0x6179 Command to fill the image with the fill byte Name Command Fill byte Bytes 0x2761 0xXX Send Format HEX ASCII HEX All the image bytes are replaced with the indicated byte Controller respond with 0x6179 Command to fill the indicated pixel row data with the fill byte Name Command Start row Fill byte address Bytes 0x2762 0xXX 0xXX Send Format HEX HEX ASCII HEX The start row range is from 0x00 to 0x17 Controller respond with 0x6179 Command to create the image of the 6 characters (Font5x7) from indicated start address Name Command Start address Characters (6) Bytes 0x2763 0xXX 0xXX Send Format HEX HEX HEX Single Switch Solution S0109 C.docx Page 14 of 24 www.nkkswitches.com • engineering@nkkswitches.com 1120 S0109 Single Switch Solution The start address range is from 0x00 to 0x11 Controller respond with 0x6179 Command to create the image of the 4 characters (Font7x10) from indicated start address Name Command Start address Characters (4) Bytes 0x2765 0xXX 0xXX Send Format HEX HEX HEX The start address range is from 0x00 to 0x0E Controller respond with 0x6179 Command to change the backlight color Name Command Bytes 0x2755 Send Format HEX Controller respond with 0x6179 Command to change PWM duty cycle Name Command Bytes 0x2757 Send Format HEX Duty cycle range from 0x00 to 0xFF. Controller respond with 0x6179 LED code 0xXX HEX Duty cycle 0xXX ASCII HEX Command to create a bar graph Name Command Start address level Bytes 0x2753 0xXX 0xXX Send Format HEX HEX HEX The start address range is from 0x00 to 0x14. The level is from 0x00 to 0x22 Controller respond with 0x6179 Command to upload the analog and digital status Name Command Bytes 0X2F Send Format HEX Controller respond with 0x61, analog and digital data (10 bytes) ,0x79. The pins are scanned every 12ms. Analog and Digital data format Byte # Byte 1 High byte Analog1 Description All the analog are scanned 4 time and sum of the 4 times are reported. The maximum value is 0x0FFC Single Switch Solution S0109 C.docx Page 15 of 24 www.nkkswitches.com • engineering@nkkswitches.com 1120 S0109 Single Switch Solution 2 3 4 5 6 7 8 9 10 Low byte Analog1 High byte Analog2 Low byte Analog2 High byte Analog3 Low byte Analog3 High byte Analog4 Low byte Analog4 Digital OR status Digital status This is OR of every scan since the last upload B0 to B3 is digital 1 to 4. B6=RC3, B7=RC4 5. Hardware Controls Overview Note: Improper installation of the Single Switch Solution could damage the units. The Analog In has four potentiometers that simulate analog input signals. Pin Analog 0 Analog 1 Analog 2 Analog 3 Function Battery 10 bits Voltmeter Stepper The Digital In/Out has four on/off toggles that simulate digital input signals and four LED’s that simulate digital output signals. Note that the Digital In and Digital Out are connected so the pin can only be used for one or the other. Digital 0 and 1 are used for output. Digital 2 and 3 are used for input. Single Switch Solution S0109 C.docx Page 16 of 24 www.nkkswitches.com • engineering@nkkswitches.com 1120 S0109 Single Switch Solution Pin Digital 0 Digital 1 Digital 2 Digital 3 Input or Output Output Output Input Input Function LED lit when AN0 is below warning level and higher than danger level. LED lit when AN0 is lower than danger level. ON/OFF the timer Counter The 9-15V DC Power jack mates with a 2.5mm cylinder power connector with a center positive. The Programming Connector links the Single Switch Solution to the firmware programmer such as the PICKit 3 or 4 by Microchip. The unit must have power to program. Also, the five-pin programming bridge should be installed into the 5x1 female header, so the unit is connected to the Single Switch Solution. It should be removed after programming to prevent stray signals. 1 2 3 4 5 Program MCLR VDD GND PGD PGC Single Switch Solution S0109 C.docx Page 17 of 24 www.nkkswitches.com • engineering@nkkswitches.com 1120 S0109 Single Switch Solution 6. Schematics Single Switch Solution S0109 C.docx Page 18 of 24 www.nkkswitches.com • engineering@nkkswitches.com 1120 S0109 Single Switch Solution Programming S0109 Single Switch Solution 1. Preparing the IS-S0109Dem for Programming The Programming Connector links the Single Switch Solution to the firmware programmer such as the PICKit 3 by Microchip. 1. The unit must have power to program. 2. The five-pin programming bridge should be installed into the 5x1 female header, so the unit is connected to the Single Switch Solution. It should be removed after programming to prevent stray signals. Make sure there is contact between the connector and pads on the bottom of the S0109. 3. Pin one on the programmer must be connected to pin one on the programming connector. Plugging it in wrong may damage the unit or the programmer or both. Program 1 MCLR 2 VDD 3 GND 4 PGD 5 PGC 6 Single Switch Solution with programmer attached. 2. Preparing the MPLAB Program Note: These instructions are for PICKit 3 and MPLAB X IDE v5.10. The version will change at Microchip’s discretion. 1. Open MPLAB X IDE program. 2. Select File, then Import, then Hex/ELF… (Prebuilt) file. 3. Prebuilt Filename: IS0109DEM20.X.Hex. Single Switch Solution S0109 C.docx Page 19 of 24 www.nkkswitches.com • engineering@nkkswitches.com 1120 S0109 Single Switch Solution 4. Device: PIC18F26K40-I/MV. 5. Hardware Tool: PICkit3. 6. All else leave the same. 7. Click on Next>. 8. Select a Project Name and click on Finish. Single Switch Solution S0109 C.docx Page 20 of 24 www.nkkswitches.com • engineering@nkkswitches.com 1120 S0109 Single Switch Solution 9. Click on the project’s folder and open it. 10. Open the “Prebuilt Files” folder and select the hex file. 3. Programming the S0109 1. Click on the Make and Program Device icon . Then name of the project should be displayed in the drop down. 2. Be sure to hold gently hold down the S0109 unit while it is programming. 3. Ignore any Programming warnings. Click “OK” button. 4. MPLAB IDE will say: Programming... Programming/Verify complete 5. Programming complete. Single Switch Solution S0109 C.docx Page 21 of 24 www.nkkswitches.com • engineering@nkkswitches.com 1120 S0109 Single Switch Solution Common Errors: 1. Target device was not found (could not detect target voltage VDD). You must connect to a target device to use PICkit 3.  Check that the connections are attached. Wiggle the S0109 around. 2. Target Device ID (0x0) is an Invalid Device ID. Please check your connections to the Target Device.  Wiggle the S0109 around. Make sure the programming connection has proper contact. Single Switch Solution S0109 C.docx Page 22 of 24 www.nkkswitches.com • engineering@nkkswitches.com 1120 S0109 Single Switch Solution 4. Testing 1. 2. 3. 4. 5. Unplug power plug. Remove PICkit 3 from unit. Remove Single Switch Solution from the IS-S0109DEM board. Remove programming bridge. Plug in Single Switch Solution back onto IS-S0109DEM board. 6. Plug in power plug. 7. Adjust analog pots, IS pushbutton, and digital switches as necessary to verify that the unit is working as expected. Notes: • If any of the analog pins are used as digital output, make sure the corresponding potentiometer is in a middle position while programming. • If the pins are assigned as digital OUT and the potentiometer is all the away to one side or the other, it may cause damage to the unit. • If the pins are assigned as digital IN the potentiometer should not be left to produce voltage between 0.6V to 2V. Single Switch Solution S0109 C.docx Page 23 of 24 www.nkkswitches.com • engineering@nkkswitches.com 1120 S0109 Single Switch Solution Warranty NKK SWITCHES LIMITED WARRANTY AND LIMITATION OF LIABILITY The following limits our liability. Please read. NKK Switches hereby warrants this product against any and all manufacturing defects for a period of one year from the date of sale of this product to the original end user. NKK Switches’ liability in the event of such defect is limited to repair or replacement of the defective products. NKK Switches disclaims any liability or warranty obligation with respect to any product that is misused, damaged by any user, or not used in conformity with all applicable product specifications. NKK SWITCHES HEREBY DISCLAIMS ANY WARRANTY, EXPRESS OR IMPLIED, OTHER THAN THAT CONTAINED HEREIN. NKK SWITCHES EXPRESSLY DISCLAIMS THE WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE, AND SHALL HAVE NO LIABILITY BASED ON OR ARISING FROM ANY CLAIM OF SUCH WARRANTY. NKK Switches shall have no liability to any person for any incidental, consequential, special, punitive, or other damages of any kind whatsoever relating to any use of this product. USE OF THIS PRODUCT IN CONNECTION WITH ANY LIFE CRITICAL APPLICATION IS NOT RECOMMENDED. Single Switch Solution S0109 C.docx Page 24 of 24 www.nkkswitches.com • engineering@nkkswitches.com 1120