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Scavenger Hunt Beacon Decoder and AVR Programmer
Use this to decode the messages broadcast by a Scavenger Hunt Beacon. The messages are displayed on an LCD screen when the Beacon's IR beam hits the Decoder's receiver. This project also doubles as an AVR Programmer Shield for an Arduino.
- Scavenger Hunt Beacon Decoder V1.zip - Scavenger Hunt Beacon Decoder GERBER
- Scavenger Hunt Beacon Decoder.sch - Scavenger Hunt Beacon Decoder EAGLE Schematic
- Scavenger Hunt Beacon Decoder.brd - Scavenger Hunt Beacon Decoder EAGLE Board
- Scavenger_Beacon_Decoder.pde - Scavenger Hunt Beacon Decoder Arduino Sketch
Bill of Materials
|Qty||Part #||Description||Schematic ID||Source|
|1||WP7113LID||5MM LOW CURRENT RED LED, LAMP THOLE, BULK||LED_ERR||Source|
|1||WP7113CGCK||5mm Green LED,Water Clear/Domed Lens, PB Free||LED_PROG||Source|
|1||OVLGY0C9B9||LED, 5MM, TAPERED, YELLOW||LED_HB||Source|
|3||CF14JT100R||1/4w 100 ohms 5% Carbon Film Resistors||R1, R2, R3||Source|
|1||CF14JT4K70||1/4w 4.7K ohms 5% Carbon Film Resistors||R4||Source|
|1||CT6EP103||TRIMMER 10K OHM 0.5W TH||P1||Source|
|1||LCD Display||20 x 4 Blue LCD Character Display||Source|
|1||PT334-6B||PHOTOTRANSISTOR 5MM BLACK AXIAL||PQ||Source|
Solder the four resistors in place. You may have to prop them up on one side because the footprints on the PCB (printed circuit board) are too small.
Solder the two IC sockets down. By putting two sockets back-to-back like this, we can program any size AVR microcontroller with this board.
Solder the small IC socket. This socket is designed to be used when programming an ATTiny13. It can also program any other 8-pin AVR microcontroller provided that the pins are the same for MISO, MOSI, VCC, GND, and RESET.
The black phototransistor should have the flattened side facing in towards the middle of the board. (The collector and emitter of the phototransistor are marked on the board if you wish to double check.)
1 - Initial project release
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