Ats20 Firmware Portable File

Toggled via a Long Press on the STEP or BAND button to avoid adding new physical switches. 📝 Logic Draft (Pseudo-code)

Have you flashed your ATS20? Share your experience and favorite firmware build in the comments below. ats20 firmware

The ATS20 firmware is a quiet rebellion against planned obsolescence. A $30 radio, transformed not by new hardware, but by better ideas written in C and flashed over a serial cable. That’s the kind of engineering that makes you smile. Toggled via a Long Press on the STEP

The and its upgraded sibling, the ATS-20X , have become ubiquitous in the world of amateur radio and shortwave listening. As incredibly affordable, portable HF (High Frequency) receivers, they offer a lot of functionality for the price. However, many users find the out-of-box experience lacking—quirky menus, limited frequency steps, or a user interface that feels unfinished. The ATS20 firmware is a quiet rebellion against

: Put all files ( esptool.exe , Flash.bat , and .ats files) in one folder. Run : Double-click flash.bat .

To fit this in the ATmega328P, the feature uses a Low-Res Graphic Mode (drawn with simple line-bitmaps) to save flash space compared to high-res fonts.

Updating the ATS20 firmware is a straightforward process. Follow these steps: