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Featured User: kurt
Open-source hardware project hosting is my passion. I spend most of my free time building neat gadgets or planning what I'll build next. I love building things, and I want to make Open Hardware Hub a place that inspires others to build, ...
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Updates 2013 February 18
It's been a while, hasn't it? Well, that's ok because we've got a lot of updates to talk about. Most of these have been effective on the site fora couple weeks now. A few may or may not be active when this article gets posted, but they'll certainly be applied in the ...
Scavenger Hunt Beacon Decoder and AVR Programmer
By: kurt
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.
Download project description w/o images
Download project description w/ images
Files
- 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 |
Download BOM w/o images
Download BOM w/ images
Steps
2. Solder Resistors
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.
3. Solder Large IC Sockets
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.
4. Solder Small IC Socket
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.
5. Solder Phototransistor
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.)
Download steps w/o images
Download steps w/ images
Revisions
2 -
1 - Initial project release
Add revision
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