iDuoDuo - Pet APRS Tracker

More photo of My DuoDuo :) My DuoDuo Life

iDuoDuo Board

Features

• ATMEGA328p MCU, Arduino compatible
• 1W VHF radio module, low cost, about $5 (SR_FRS_1WV)
• 1200 bauds AFSK using 8-bit PWM
• Sends out standard APRS position messages
• mini GPS module
• 18650 power supply
• Open Source hardware and firmware

Pin map

iDuoDuo board

• D3 is the audio out pin

• D4 is the PTT pin

• D12 is the PD pin of radio module

• D13 is the PWR_CTRL pin of the radio module

• D8 is the power on input pin

• D9 is the power on output pin

Repository Contents

• hardware/ - All Eagle design files (.brd, .sch) and Gerber files of iDuoDuo Board
• firmware/ - Firmware source files of the iDuoDuo

Product Versions

• IDuoDuo-V0.4 - Stupid bug of the S1 key package. 2016/02/09
• IDuoDuo-V0.6 - work OK.

License Information

The hardware is released under Creative Commons ShareAlike 4.0 International.

Distributed as-is; no warranty is given.