Ats20 - Firmware Exclusive
The ATS20 firmware exclusive ecosystem has transformed the affordable Si4732-based radio receiver from a basic entry-level device into a feature-rich tool for radio enthusiasts. While the stock firmware (typically PU2CLR V1.1.5) provides a solid foundation, exclusive community-developed updates like the ATS_EX by Goshante on GitHub unlock capabilities that were previously unavailable. Top Exclusive Firmware Features
| Issue | Likely Cause | Exclusive Fix | | :--- | :--- | :--- | | Screen stays white | LCD driver mismatch (ILI9341 vs ST7735) | Recompile or find a build with "Auto-detect LCD" flag. | | Volume stuck at max | GPIO pin mapping changed | Open the case; temporary fix: remove R18 resistor. | | No SSB (silent) | BFO (Beat Frequency Oscillator) offset drifted | Use the hidden menu: Press Vol knob 2x, tune BFO to 1200 Hz. | | Encoder spins opposite | Phase A/B swapped | Exclusive builds usually allow "Encoder Reverse" in Config menu. | ats20 firmware exclusive
What changed:
Drivers: Ensure you have the CH340/CH341 USB serial driver installed to recognize the radio's port. The ATS20 firmware exclusive ecosystem has transformed the
The ATS_EX firmware by Goshante (v1.18) significantly upgrades ATS-20/ATS-20+ radios, providing improved signal metering, battery management, and an enhanced visual display. This third-party build resolves SSB noise issues and offers better tuning functionality over stock firmware through an Arduino Nano USB flash process. Detailed installation information and firmware files are available on GitHub. ATS_EX Firmware for ATS-20 DSP Receiver - GitHub | | Volume stuck at max | GPIO
