What are you hoping to add? (e.g., better SSB tuning, a spectrum display, or a larger font?) What operating system are you using to flash the radio?
: The firmware might be configured for a different display address (0x3C vs 0x3D) or a different display controller entirely. You will need to edit the source code configuration file or find a .hex file compiled for your specific screen layout. Rotary Encoder Works Backward ats20 firmware
you have (e.g., 20 or 20+), I can help find the and driver installation steps . If you'd like, I can: What are you hoping to add
The ATS20 firmware offers several key features that make it an essential component of the device. Some of these features include: You will need to edit the source code
One of the biggest complaints about the stock firmware is the lack of selectable filters. Modern custom firmware allows you to choose between 1.0 kHz, 2.2 kHz, 3.0 kHz, and 4.0 kHz bandwidths for AM and SSB, drastically reducing adjacent station interference.
Before downloading, identify your hardware. The original ATS20 uses a blue PCB and an ATmega328. The ATS20+ uses a red PCB and often includes a battery charging IC. Do not mix them up.