/TinyTX

Updated version of Nathan Chantrell's TinyTX boards

Primary LanguageC++

TinyTX

This repo picks up on the work on Nathan Chantrell, sadly R.I.P. late 2020.

Motivation

Since Nathan created TinyTX, both chips have evolved:

  1. RFM12B -> RFM69
  2. ATtiny84 -> ATtiny 0,1 series e.g. ATtiny1614

High level design

This project will create a TinyTX4 using:

  1. RFM69HW
  2. ATtiny1614
  3. lowpowerlab's RFM69 library

And release all hardware and software in this repository.

Radio module choice

Here is a comparison of RFM69 variants:

Variant Output (dBm) Pinout Size (mm)
RFM69W 13 RFM69W 19.7 x 16
RFM69CW 13 RFM69CW 16 x 16
RFM69HW 20 RFM69W 19.7 x 16
RFM69HCW 20 RFM69HCW 16 x 16

i.e. RFM69W and RFM69HW share pinout, but are larger (19.7 x 16)mm vs the RFMCW and RFMHCW (16 x 16)mm.

For interoperability between normal and high-power modules, we'll go with the RFM69(H)W modules.

Hardware versions

TinyTX4 Gif

Software

See software page.