OSH Park
Micro.Modem.rev_a1
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Micro.Modem.rev_a1
by
WarHawk-AVG.
2
layer board of
1.04x0.95
inches
(26.34x24.13
mm).
Shared on
January 20th, 2016 01:07.
Micro.Modem.rev_a1
2 layer board of 1.04x0.95 inches (26x24mm). $4.90 for three.
Atmega328p-based 1200 Baud AFSK radio modem
For use with MicroAPRS and other amateur radio packet radio protocols
MicroModem MicroModem is an open-source implementation of a 1200-baud AFSK / Bell 202 modem on the popular ATmega328p microprocessor. MicroModem can be used for things like ham radio APRS, AX.25, TCP/IP over SLIP, experimentation with mesh-networks, long-range wireless communication with sensors (Or friends! Or strangers!). It basically comes in two flavors: Prebuilt or DIY.
It is simple enough that, if you have some basic electronics experience, you can understand and build it yourself with a few components and an Arduino. You can also get a more advanced and prebuilt, fully tested MicroModem directly from original designer. He manufacture them personally, to the highest quality. (link/store at his site)
Please note that the resources listed here for building your own MicroModem are for an earlier, more simple version, than the one he currently offers for sale. While the two modems are functionally identical, the version he offers for sale has some technical refinements, and is implemented as an integrated board with MCU, USB and everything on one board, measuring only 3×5 cm. The DIY version is a board with all the external circuitry needed for turning a standard Arduino (or compatible like Microduino) into a MicroModem!
Per original designers request…link to the Rev 1 Documentation for the project
Unit above is the MicroModem, the Microduino-Core/Microduino-Core+ module and the Microduino USB TTL module stacked There is also a combined Microduino Core USB that is an all in one unit