ATAB5429-9-WB

User Guide “Wireless BlackBird” Transceiver Demonstration Kit ATAB542X-X-WB Introduction Congratulations on your purchase of the Atmel® ATAB542x “Wireless BlackBird” Transceiver Demonstration Kit. This kit is built around the ATA542x RF transceiver IC and the ATmega3290 AVR® microcontroller. This User Guide describes the Demonstration Kit features and provides two versions of the menu system in the demo software – (1) an abridged version which gives the top two tiers of the menu, and (2) an exhaustive version which gives the menu in full detail, including the resulting action from all possible joystick movements at each point in the menu. For the most rapid path to executing a working demo with the transceiver pair, see the Quick Start Card included in the package. It shows how to execute the Link Quality demo – a demo in which each transceiver in the pair measures and displays the relative signal strength of the other transceiver’s RF transmission. Purpose The Wireless BlackBird kit, consisting of a pair of transceivers, was designed with a positive out-of-the-box experience in mind. Using the Quick Start Card included in the package, an end-user can, within a matter of minutes, have a demonstration running. This User's Guide outlines the demo-software menu, providing a complete, single document which the end-user can reference while becoming intimately familiar with the many features of the demo. Equally so, this kit is suitable for a developer who wishes to explore the full capabilities of the ATA542x radio and the AVR micro-controller. Through the ISP, UART, or JTAG interface, the developer has complete control. Description The Atmel Wireless BlackBird is a 2" x 3.5" PC-board transceiver using the ATA542x UHF transceiver IC and the ATmega3290 AVR micro-controller, as shown in Figure 1-1. It is offered in five frequencies: 315, 345, 434, 868, and 915MHz. The BlackBird is UART-, ISP, and JTAG- ready. It has a custom LCD display, a 4-way joystick, and is powered by 2 AAA batteries. 5219C-WIRE-05/15 The UART, ISP, and JTAG I/Os allow end-users to load software into the AVR® and to interface with the ATA542x radio. With the joystick, the end-user can navigate through menus and select functions to execute. The LCD displays the menus, as well as showing transceiver activity during each of the various demo functions. The BlackBird is capable of up to 20Kbit/s Manchester FSK modulation, or 10Kbit/s ASK. Its fractional-N frequency synthesizer gives a nice 800Hz RF resolution. An internal TX/RX switch controls the single-ended RF I/O which is capable of up to 10dBm (adjustable) output. The Atmel® part numbers for the different frequency versions are: ● ATAB5423-3-WB for 315MHz ● ● ● ● ATAB5425-3-WB for 345MHz ATAB5428-4-WB for 434MHz ATAB5428-8-WB for 868MHz ATAB5429-9-WB for 915MHz Performance Characteristics Some typical characteristics for the ATA542x BlackBird transceiver board are: Sensitivity: approximately –102dBm FSK and –105dBm ASK Data Rate: up to 20Kbit/s FSK and 10Kbit/s ASK Frequency/Channels: Multi-channel operation over ±2.5MHz with 800Hz resolution Temperature Range: –40°C to +85°C Power Output: ~0 to ~10dBm (switchable) Supply Current: ● OFF mode: < 1µA ● ● ● RX mode: 12mA TX mode at ~0dBm: 12mA TX mode at ~8dBm: 21mA Voltage Requirement: 3 or 6 VDC Range: ≥1000 feet The specifications for the ATA542x transceiver IC are included in its Data Sheet on the accompanying CD. Note: The user is responsible for compliance with their respective Government's Regulations regarding RF transmitting devices. Kit Contents The ATAB542x kit contains two ATAB542x transceivers (with batteries), as determined by the Atmel part number ordered, a Quick Start Card, and a CD. The kit is complete, the software is preloaded, and it is ready for immediate use. Figure 1 on page 3 shows the kit contents. Included on the accompanying CD are: 1. User Guide 2 2. Bills of Material 3. Data Sheets 4. schematic and layout files 5. IAR® source code 6. a *.hex file for the Demo software 7. a Quick Start Guide ATAB542x-x-WB [USER GUIDE] 5219C–WIRE–05/15 Figure 1. Wireless BlackBird Transceiver Figure 2. Wireless BlackBird Demonstration Kit ATAB542x-x-WB [USER GUIDE] 5219C–WIRE–05/15 3 1. Operating the Transceivers This section contains remarks about how the Menu Guides, both abridged and exhaustive, are set-up and how to use them. Then, both versions of the Menu Guide, respectively, are given. 1.1 Menu Guide Description These menu guides are intended to provide the user with two views of the demo-software menu. First, the abridged version shows a top-level view of only the first two tiers of the menu system. At a glance, the user can see what features are demonstrated in the pre-loaded software. Second, in the exhaustive version, the user has a simple-to-navigate outline with complete details about each feature in the software. Additionally, in the exhaustive version, short instructions are given for the demonstrations whose execution is not intuitively clear from simply the outline material alone. The following are comments important to understanding these guides and navigating the Demo software menu: 1. anything that appears on the LCD display is highlighted in the outline with bold text. This helps the user to more quickly spot the place in this outline that corresponds to the current position in the menu system while using the Wireless BlackBird. 1.2 2. there are 5 possible movement of the joystick: P - press L - move left R - move right U - move up D - move down that result in some action. Each is described in the exhaustive version. 3. where reasonable, a few sentences of explanation either complement or replace the abbreviated descriptions of the joystick movements. 4. unless otherwise stated, these actions apply to each menu item: L - backs out of the menu item P - starts/ends/selects the menu item So, a very important action that the user MUST remember is: only by pressing (P) the joystick will a selected menu item be stored in memory! 5. the letters “X” or “x” are used in this outline to indicate display of a number that has a variable value. The Abridged Menu Guide There are 6 main menus: ● DIAGNOSTICS ● ● ● ● ● LINK QUALITY TEMPERATURE SENSOR LIGHT SENSOR FREQ HOPPER SYSTEM SETUP They are accessible by moving the joystick downward (not to be confused with pressing it) or upward after power-up. At each main menu which has sub-menus, these sub-menus can be accessed by pressing the joystick. Moving the joystick leftward backs out of the currently-selected sub-menu. These 6 main menus and each one’s sub-menu are described here: DIAGNOSTICS - provides transmit and receive functions for testing and evaluation. The sub-menus are: MARK - transmits a continuous logic “1” (the upper FSK frequency) SPACE - transmits a continuous logic “0” (the lower FSK frequency) TOGGLE - generates a continuous square wave by toggling between MARK and SPACE (FSK mode) RSSI - indicates received signal strength PKT TX - transmits packet data PKT RX - receives packet data S LINK - serial link mode; permits two PCs to communicate over an RF link 4 ATAB542x-x-WB [USER GUIDE] 5219C–WIRE–05/15 LINK QUALITY - two transceivers exchange data packets with one-another. Each transceiver displays the relative strength of the signal it receives. TEMPERATURE SENSOR - two transceivers exchange with one-another the temperature measurement made by each’s on-board sensor. The temperature measured by a transceiver’s own sensor, as well as that reported by the other transceiver, is displayed. LIGHT SENSOR - two or more transceivers exchange with one-another the light intensity measurement made by each’s onboard sensor. This is a multi-transceiver demonstration with a single MASTER and one or more REMOTEs. The intensity measured by a transceiver’s own sensor, as well as that reported by the other transceiver, is displayed. Note: The REMOTEs communicate only with the MASTER – not with other REMOTEs. FREQ HOPPER - two transceivers exchange data packets, in either single or continuous mode, as they hop among pre-set channels. SYSTEM SETUP - various functions PWR DWN - puts the transceiver in one of two different sleep modes CHANNEL ADJUST - adjusts/trims the frequency of the selected channel UNIT ID ADR - assigns a unit ID to the transceiver SET DATE/TIME - sets the date and time of the internal clock PWR LVL - sets the power output (LO ~0dBm, HI ~8dBm) LCD SEG ON - displays all segments on the LCD A/D TST - shows that the A/D converter works CLK OUT - outputs a square wave at the RC oscillator frequency TIME - displays day/date/time information RF MODULE SELECT - loads pre-set register data for each RF frequency 1.3 The Exhaustive Menu Guide To power-up the transceiver, slide the white-and-black switch downward. The text ATMEL WIRELESS BLACKBIRD scrolls across the screen. The AVR® logo and the device part number (542x) are also displayed. At this point: P - displays VERSION X.XX, the current version of the demo software P,L,R,U,D - goes to power-up display (ATMEL SMARTRF...) U,D - scrolls through the main menu (DIAGNOSTICS, LINK QUALITY, ...) P - selects desired menu item 1.3.1 DIAGNOSTICS Contains seven transmit/receive functions sub-menus: MARK, SPACE, TOGGLE, RSSI, PKT TX, PKT RX, S LINK P - accesses sub-menus L - goes to power-up display (ATMEL SMARTRF...) U,D - scrolls through main menu (DIAGNOSTICS, LINK QUALITY, ...) 1.3.1.1 MARK Transmits a continuous logic “1” (the upper FSK frequency) P - accesses menu items L - goes to DIAGNOSTICS U,D - scrolls thru menu (MARK, SPACE, ...) CH x - sets radio channel (0 to 9) P - goes to PWR LVL L - goes to PWR LVL U - increments channel D - decrements channel ATAB542x-x-WB [USER GUIDE] 5219C–WIRE–05/15 5 PWR LVL - sets TX power level P - sets selected power level (LO/HI) and goes to MARK L - goes to MARK U - selects HI power D - selects LO power MARK (blinking), channel number, AVR® logo, antenna icon, and P LO (or, P HI) radio is transmitting, indicated by AVR logo and antenna icon P,L,R,U,D - goes to START and stops transmitting START - exits or re-starts TX mode P - re-starts TX mode L - goes to MARK (main menu) U,D - goes to EXIT EXIT - exits TX mode P,L - goes to MARK (main menu) U,D - goes to START 1.3.1.2 SPACE Same as the MARK menu, except it transmits a continuous logic “0” (the lower FSK frequency) 1.3.1.3 TOGGLE Generates a continuous square wave by toggling between MARK and SPACE (FSK mode) P - accesses menu items L - goes to DIAGNOSTICS U,D - scrolls thru menu (MARK, SPACE, ...) CH x - sets radio channel (0 to 9) P - sets channel and goes to FSK L - goes to FSK U - increments channel D - decrements channel FSK - sets transmitter to ASK or FSK P - sets mode and goes to x KBPS L - goes to x KBPS U,D - toggles between ASK and FSK x KBPS - sets data rate, dependent on modulation chosen P - goes to TOGGLE U,D - changes data rate (1,5,10Kbps for ASK; 1,5,10,20,40Kbps for FSK) TOGGLE, AVR logo, antenna icon, and CH x - radio is transmitting, indicated by AVR logo and antenna icon P,L,R,U,D - goes to START and stops transmitting START - exits or re-starts TX mode P - re-starts TX mode L - goes to TOGGLE (main menu) U,D - goes to EXIT EXIT - exits TX mode P,L - goes to TOGGLE (main menu) U,D - goes to START 6 ATAB542x-x-WB [USER GUIDE] 5219C–WIRE–05/15 1.3.1.4 RSSI Indicates received signal strength Note: A 2nd transceiver must be put into one of the above transmit modes (MARK, SPACE, or TOGGLE) in order to see a received signal strength indication P - accesses menu items L - goes to DIAGNOSTICS U,D - scrolls thru menu (MARK, SPACE, ...) CH x - sets radio channel (0 to 9) P - sets channel and goes to FSK L - goes to FSK U - increments channel D - decrements channel FSK - sets transmitter to ASK or FSK P - sets mode and goes to x KBPS L - goes to x KBPS U,D - toggles between ASK and FSK x KBPS - sets data rate, dependent on modulation chosen P - sets data rate and goes to RSSI L - goes to RSSI U,D - changes data rate (1,5,10Kbps for ASK; 1,5,10,20,40Kbps for FSK) RSSI, number, vertical bar-graph - shows a number and bar-graph to indicate relative signal strength P,L,R,U,D - goes to RSSI (main menu) 1.3.1.5 PKT TX Transmits packet data Note: A 2nd transceiver must be put into the PKT RX mode in order to see this demonstration. P - accesses menu items L - goes to DIAGNOSTICS U,D - scrolls thru menu (MARK, SPACE, ...) CH x - sets radio channel (0 to 9) P - sets channel and goes to FSK L - goes to FSK U - increments channel D - decrements channel FSK - sets transmitter to ASK or FSK P - sets mode and goes to x KBPS L - goes to x KBPS U,D - toggles between ASK and FSK x KBPS - sets data rate, dependent on modulation chosen P - sets data rate and goes to PKT TX L - goes to PKT TX U,D - changes data rate (1,5,10Kbps for ASK; 1,5,10,20,40Kbps for FSK) PKT TX (blinking), number - transmits a packet P, R - transmits packet and increments counter L - goes to PKT TX (main menu) U - resets counter to 0000 ATAB542x-x-WB [USER GUIDE] 5219C–WIRE–05/15 7 HOW TO EXECUTE THE “PKT TX” FEATURE: When ready to transmit, the blinking text PKT TX and 0000 is displayed. On the RX, a portion of the data packet (for example, 0D5500) and a 4-digit number is displayed. This number is the packet number sent by the TX. Transmission is indicated on the LCD of the TX by an AVR® logo (blinking) and an antenna icon. When a packet is sent, the 4-digit number on the TX display is incremented. At the RX, the 4-digit number is set to the packet number sent by the TX. 1.3.1.6 PKT RX Receives packet data Note: A 2nd transceiver must be put into the PKT TX mode in order to see this demonstration. P - accesses menu items L - goes to DIAGNOSTICS U,D - scrolls thru menu (MARK, SPACE, ...) CH x - sets radio channel (0 to 9) P - sets channel and goes to FSK L - goes to FSK U - increments channel D - decrements channel FSK - sets transmitter to ASK or FSK P - sets mode and goes to x KBPS L - goes to x KBPS U,D - toggles between ASK and FSK x KBPS - sets data rate, dependent on modulation chosen P - sets data rate and goes to PKT RX L - goes to PKT RX U,D - changes data rate (1,5,10Kbps for ASK; 1,5,10,20,40Kbps for FSK) PKT RX, (data & 4-digit number after packet received) - displays received packet info from a transceiver in PKT TX mode L - goes to PKT RX (main menu) U,D - scrolls to show the entire contents of the packet received HOW TO EXECUTE THE “PKT RX” FEATURE: see the description under PKT TX 1.3.1.7 S LINK Serial link mode for connecting to a PC Notes: 1. This demonstration requires 2 transceivers. 2. This mode can also be used as an “RF sniffer”. P - accesses menu items L - goes to DIAGNOSTICS U,D - scrolls thru menu (MARK, SPACE, ...) CH x - sets radio channel (0 to 9) P - sets channel and goes to FSK L - goes to FSK U - increments channel D - decrements channel FSK - sets transmitter for ASK or FSK P - sets mode and goes to x KBPS L - goes to x KBPS U,D - toggles between ASK and FSK 8 ATAB542x-x-WB [USER GUIDE] 5219C–WIRE–05/15 x KBPS - sets data rate, dependent on modulation chosen P - sets data rate and goes to ASCII L - goes to ASCII U,D - changes data rate (1,5,10Kbps for ASK; 1,5,10,20,40Kbps for FSK) ASCII - transmits in serial-link ASCII mode for communication between two PCs P, L - turns on serial link transmission (SL ON, antenna icon (blinking)) U, D - change between ASCII and HEX mode SL ON - serial-link mode activated P, L - turns serial-link mode off (SL OFF) and returns to S LINK after momentary pause HEX - transmits in serial-link HEX mode for communication between two PCs Use HEX mode or “RF sniffer” applications. P, L - turns on serial link transmission (SL ON, antenna icon (blinking)) U, D - change between ASCII and HEX mode SL ON - serial-link mode activated P, L - turns serial-link mode off (SL OFF) and returns to S LINK after momentary pause HOW TO EXECUTE THE “S LINK” FEATURE: Connect the BlackBird's 3-pin UART header to a PC with a suitablymodified serial RS232 cable. (NOTE: For “RF sniffer” applications, only one such set-up is required. To communicate between two PCs via an RF link, do two set-ups.). Using the Terminal Emulator included on the CD (or, another suitable one), configure the serial port for 38.4k, N, 8, 1. In the S LINK menu, select the desired CH x, ASK or FSK, x KBPS, and ASCII mode for one of the transceivers. When the LCD displays SL ON with a blinking antenna icon in the lower left-hand corner, the device is ready for communication. Repeat this with the 2nd transceiver. Now, type on one PC and observe the packet data displayed on the other PC. NOTE: in order to command the transceiver to transmit the message, one must hit on the keyboard. 1.3.2 LINK QUALITY Exchanges and displays measured signal strengths Note: This demonstration requires 2 transceivers. P - accesses menu items L - goes to power-up display (ATMEL SMARTRF...) U,D - scrolls through menu (DIAGNOSTICS, LINK QUALITY, ...) CH x - sets radio channel (0 to 9) P - sets channel and goes to FSK L - goes to FSK U - increments channel D - decrements channel FSK - sets transmitter to ASK or FSK P - sets mode and goes to x KBPS L - goes to x KBPS U,D - toggles between ASK and FSK x KBPS - sets data rate P - sets data rate and goes to *WAIT* (blinking) L - goes to *WAIT* (blinking) U,D - changes data rate (1,5,10Kbps for ASK; 1,5,10,20Kbps for FSK) *WAIT*, antenna icon (blinking) - transceiver is prepared for MASTER or REMOTE mode L - goes to LINK QUALITY One transceiver should be left as a REMOTE at the *WAIT*, antenna icon (blinking) display. Proceed with the other transceiver through the remaining menus to establish it as the MASTER. R - puts transceiver into MASTER mode ATAB542x-x-WB [USER GUIDE] 5219C–WIRE–05/15 9 MLINKxx, XXXX - transceiver is in MASTER mode L - goes to LINK QUALITY R + momentary hold - changes display information (Mxx, Rxx, etc.) U - resets counter to 0000 Mxx, Rxx, counter, AVR® and antenna icon (blinking) - Mxx displays signal strength received from REMOTE's transmitter; Rxx displays signal strength received from the MASTER's transmitter, as reported from the REMOTE. L - goes to LINK QUALITY R + momentary hold - changes display information (MLINKxx, XXXX, etc.) U - resets counter to 0000 RLINKxx, XXXX - transceiver is in REMOTE mode L - goes to LINK QUALITY HOW TO EXECUTE THE “LINK QUALITY” FEATURE: One transceiver should be left as a REMOTE at the *WAIT*, antenna icon (blinking) display. When the other transceiver is put into MASTER mode, it starts sending packets and establishes communication with the REMOTE. MLINKxx, xxxx, and an antenna icon (blinking) show on the display. MLINKxx displays the relative signal strength of the signal received from the REMOTE link's transmitter (00 to 99). xxxx increments to show what packet number has been successfully sent and acknowledged. The REMOTE displays the same, except RLINK instead of MLINK. 1.3.3 TEMPERATURE SENSOR Exchanges and displays measured temperatures Note: This demonstration requires 2 transceivers. P - accesses menu items L - goes to power-up display (ATMEL SMARTRF...) U,D - scrolls through menu (DIAGNOSTICS, LINK QUALITY, ...) CH x - sets radio channel (0 - 9) P - sets channel and goes to FSK L - goes to FSK U - increments channel D - decrements channel FSK - sets transmitter for ASK or FSK P - sets mode and goes to x KBPS L - goes to x KBPS U,D - toggles between ASK and FSK x KBPS - sets data rate P - sets data rate and goes to *WAIT*, antenna icon (blinking) L - goes to *WAIT*, antenna icon (blinking) U,D - changes data rate (1,5,10Kbps for ASK; 1,5,10,20Kbps for FSK) *WAIT*, antenna icon (blinking) - transceiver is prepared for MASTER or REMOTE mode One transceiver should be left as a REMOTE at the *WAIT*, antenna icon (blinking) display. Set the other transceiver to MASTER (R joystick motion). L - goes to TEMPERATURE SENSOR R - puts transceiver into MASTER mode HOW TO EXECUTE THE “TEMPERATURE SENSOR” FEATURE: One transceiver should be left as a REMOTE at the *WAIT*, antenna icon (blinking) display. When the other transceiver is put into MASTER mode, it starts sending packets and establishes communication with the REMOTE. The MASTER cycles through 3 screens: (1) M TEMP, with AVR logo and antenna icon (blinking), and a thermometer icon, (2) LOCAL, the measured temperature at the MASTER, and the thermometer icon, (3) REMOTE, the reported measured temperature at the REMOTE, and the thermometer icon. The REMOTE will cycle through the same 3 screens as the master, displaying R TEMP instead of M TEMP. During any of these 3 screens, on either the MASTER or SLAVE: 10 ATAB542x-x-WB [USER GUIDE] 5219C–WIRE–05/15 L - returns TEMPERATURE SENSOR U - toggles the displayed temperature between F and C 1.3.4 LIGHT SENSOR Exchanges and displays measured light intensities Notes: 1. This demonstration requires 1 or more REMOTE transceivers. 2. In the SYSTEM SETUP menu, under UNIT ID ADR utility, the REMOTE IDs can be set manually to any value 0 to 255. P - accesses menu items L - goes to power-up display (ATMEL SMARTRF...) U,D - scrolls through menu (DIAGNOSTICS, LINK QUALITY, ...) CH x - sets radio channel (0 - 9) P - sets channel and goes to FSK L - goes to FSK U - increments channel D - decrements channel FSK - sets transmitter for ASK or FSK P - sets mode and goes to x KBPS L - goes to x KBPS U,D - toggles between ASK and FSK x KBPS - sets data rate P - sets data rate and goes to *WAIT*, antenna blinking L - goes to *WAIT*, antenna blinking U,D - changes data rate (1,5,10Kbps for ASK; 1,5,10,20Kbps for FSK) *WAIT*, blinking antenna - transceiver is prepared for MASTER or REMOTE mode All transceivers except ONE (regardless of a single- or multi-sensor demo) should be left as a REMOTE at the *WAIT*, blinking antenna display. Proceed with ONLY ONE transceiver through the remaining menus. R - goes to SINGLE SENSOR L - goes to LIGHT SENSOR SINGLE SENSOR - sets single-sensor mode P - sets sensor mode and goes to S ADDR x L - goes to S ADDR x U,D - toggles between SINGLE SENSOR and MULTI SENSOR S ADDR x - sets the address of the single REMOTE sensor to poll This should be set to 1 if only one sensor is polled P - sets number and puts radio into MASTER mode L - puts radio into MASTER mode U,D - changes number of sensors to poll (1 - 254) MULTI SENSOR - sets the quantity and number-addresses of the REMOTE sensors to poll P - sets sensor mode and goes to S ADDR x L - goes to S ADDR x U,D - toggles between SINGLE SENSOR and MULTI SENSOR S ADDR x - sets the number of REMOTE sensors to poll P - sets number and puts radio into MASTER mode L - puts radio into MASTER mode U,D - changes number ofsensors to poll (1 - 254) ATAB542x-x-WB [USER GUIDE] 5219C–WIRE–05/15 11 HOW TO EXECUTE THE “LIGHT SENSOR” FEATURE: SINGLE-SENSOR mode: After one transceiver is put into MASTER mode, the MASTER polls the REMOTE with ID #1. The MASTER starts sending packets and establishes communication with the REMOTE. The MASTER cycles through 3 screens: (1) M LIGHT, with AVR® logo and antenna icon (blinking), and a 4-digit number, (2) LOCAL and a 4-digit number, (3) REMOTE and a 4-digit number. The REMOTE cycles through the same 3 screens as the master, displaying R LIGHT instead of M LIGHT and no 4-digit number. MULTI SENSOR mode: This mode is similar to the SINGLE SENSOR mode except that each successive transmission addresses the next incremental REMOTE ID, up to the largest ID # set in the MULTI SENSOR menu. In order to do this mode successfully, a specific power-up sequence is required. For example, if the largest ID # is set to 3, the MASTER will poll REMOTE 1, then REMOTE 2, then REMOTE 3, and the repeat continually until the demo is terminated. The 4-digit number is a relative intensity indicator. 1024 represents the brightest light the sensor can measure; 0000, the dimmest. 1.3.5 FREQ HOPPER hops among preset channels Note: This demonstration requires 2 transceivers. P - accesses menu items L - goes to power-up display (ATMEL SMARTRF...) U,D - scrolls through menu (DIAGNOSTICS, LINK QUALITY, ...) *WAIT* - ready to begin demo L - goes to FREQ HOPPER R - goes to M HOP M HOP - sets single-event or continuous mode P - transmits in single-event mode L - returns to FREQ HOPPER menu U - transmits in continuous mode HOW TO EXECUTE THE “FREQ HOPPER” FEATURE: SINGLE-EVENT mode - at the M HOP screen, pressing the joystick sends a packet on 3 of the 5 pseudo-randomly-selected pre-set channels. The display shows M HOP, AVR logo, and CH-x. CH-x displays the channels on which it received a valid return packet from the REMOTE. Conversely, “----” indicates the data on that channel was not valid. During this mode, the REMOTE displays a 4-digit number if it receives at least one good packet of the three. CONTINUOUS mode - at the M HOP screen, moving the joystick up (until the snowflake is visible) continuously sends packets as the MASTER hops among the 5 pre-set channels. The display shows M HOP, AVR logo, snowflake, and CH-x. During this mode, the REMOTE displays a 4-digit number if it receives at least one good packet of the three. In this demo, the REMOTE scans the 5 pre-set hop channels, goes to sleep, then repeats. These preset hop channels are not to be confused with the channel numbering in other user-selectable menus. 1.3.6 SYSTEM SETUP contains ten “house-keeping” functions sub-menus: PWR DWN, CHANNEL ADJUST, UNIT ID ADR, SET DATE/TIME, PWR LVL, LCD SEG ON, A/D TST, CLK OUT, TIME, REMOVE SELECT P - accesses sub-menus L - goes to power-up display (ATMEL SMARTRF...) U,D - scrolls through menu (DIAGNOSTICS, LINK QUALITY, ...) 12 ATAB542x-x-WB [USER GUIDE] 5219C–WIRE–05/15 1.3.6.1 PWR DWN Puts transceiver in two different sleep modes P - accesses menu items L - goes to SYSTEM SET-UP U,D - scrolls through menu (PWR DWN, CHANNEL ADJUST…) PWR OFF - sets transceiver power-down mode P - sets power-down mode L - goes to SYSTEM SETUP U,D - toggles between PWR OFF and PWR SAVE PWR SAVE - display and radio are off; 32kHz oscillator and real-time clock are on P - wakes-up part at power-up display (ATMEL SMARTRF...) PWR OFF - turns display and radio off; uC is asleep; max draw