Shared Projects by WarHawk-AVG

micro.modem.nano.v0a1

2 layer board of 0.67x1.67 inches (17x42mm). $5.60 for three.

Atmega328p-based 1200 Baud AFSK radio modem

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!

This is my adaptation of the MicroModem DIY, it is upsized to the footprint of the arduino nano (I got one for $2.99 vs the $18 it would take for the MicroModem Core USB), this is a conversion and should be a 1-1 pinout match for Marks MicroModem (so his pre-compiled hex files should work with no modification or need for re-compile) but for the MUCH cheaper arduino nano.

Correction for missing trace, and for the used arduino nano library to correct reversal of analog pins.

-untested- at the moment

Baofeng UV5R TRRS Thru-Hole Adapter - WarHawk’s Tweak

2 layer board of 1.93x0.36 inches (49x9mm). $3.45 for three.

Thru-Hole adaptation of johnboiles KK6GIP - Baofeng UV5R TRRS Adapter

Converted to standard size .25 watt resistors, small tantalum caps will work fine, and made the wires between the pads and holes much thicker, along with a few small cosmetic tweaks.

Baofeng UV5R TRRS Adapter - WarHawk’s Tweak

2 layer board of 1.08x0.32 inches (27x8mm). $1.70 for three.

Adaptation of johnboiles KK6GIP - Baofeng UV5R TRRS Adapter

I made the pads 0805, to make it a bit easier to hand solder with an iron (it’s NOT easy with 0603 components…ask me how I know), and made the wires between the pads and holes much thicker, along with a few small cosmetic tweaks

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

https://www.youtube.com/embed/L-LeizF6ixY

Arduboy.Prototype

2 layer board of 2.13x3.37 inches (54x86mm). $35.80 for three.

This is the prototype, plan released for a contest…there are more upgraded versions with better design and cases coming

https://www.arduboy.com/

Arduboy is a miniature open-source game system that you can program yourself! If you don’t know how to program yet, it’s a great way to learn! If you already are an expert developer, join our community and show off your skills! Arduboy is a game system the size of your imagination!

Recently funded on Kickstarter and on display at Maker Faires around the world, everyone loves Arduboy!