Ats20 Firmware Access
The firmware likely has the wrong I2C address mapped for the OLED display. Open the code and look for the screen initialization line. Switch the address between 0x3C and 0x3D , then re-upload. 3. Rotary Encoder Works Backwards
Optimizes power consumption and provides a more accurate on-screen battery voltage indicator.
Go to Tools > Processor and choose (try the "Old Bootloader" option if the upload fails). Select your Port . Click the Upload arrow button. 4. Key Features Unlocked by Custom Firmware
Some recent versions use the ATmega328PB chip and a CH340K USB chip, which may require specific drivers or hardware modifications to flash. 2. Firmware Options
The process of flashing (installing) new firmware is surprisingly straightforward. Many users were intimidated by the process, but community tools and guides have made it accessible. The example below uses , a simple graphical tool. ats20 firmware
: 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
Which or chipset you have (e.g., original SI4732, ATS20+, or ESP32-based SI4732). Your computer operating system (Windows, macOS, or Linux).
Before diving into firmware, it's crucial to understand the hardware it runs on. The standard ATS-20 is powered by an (based on the ATmega328P microcontroller) paired with the Si4732 DSP receiver chip. This combination is what makes the radio so flexible; the Arduino can be reprogrammed to change how the Si4732 behaves.
Updating the receiver is straightforward but requires attention to detail. Leaving settings on defaults can result in a distorted or misaligned display orientation. Required Components : Your ATS-20 or ATS-20+ device and a computer. Cables : A standard data-capable Mini-USB or Type-C wire. The firmware likely has the wrong I2C address
The ATS-20+'s built-in features already provide a solid listening experience. Out of the box, it supports FM, AM (MW & SW), LW (Long Wave), and SSB (LSB & USB). It also includes a 0.96-inch OLED display, 22 pre-configured commercial and amateur radio bands, and audio bandwidth filters from 0.5 to 6 kHz.
If you're looking for more specific information about the ATS20 firmware, such as update instructions or changelogs, I recommend checking the manufacturer's website or online forums for amateur radio enthusiasts.
Click the Verify (checkmark) button to ensure there are no errors, then click Upload (arrow) to flash the firmware.
A: Yes, but verify the main chip. If it uses an ATmega328, the process is identical. If it uses an ARM chip (STM32), you need different firmware. Select your Port
: The WCH CH340 Serial Driver (crucial for computer-to-device communication).
Factory firmware often struggles with Upper Sideband (USB) and Lower Sideband (LSB). Custom firmware provides finer tuning steps (down to 1 kHz or less), which is crucial for listening to amateur radio operators.
If you decide to proceed, the process generally involves:
Flashing firmware onto your ATS-20 is straightforward and safe when done correctly. For the most user-friendly process, many in the community recommend using , a simple graphical tool for uploading .hex files to Arduino boards.
The firmware is the internal software that controls how the ATS20 radio functions, from interpreting button presses to processing signals.