ExpressLRS Gemini TX

ELRS official website: https://www.expresslrs.org/

For flashing the firmware, please use the following methods:

1. After soldering all the components, first flash the backpack firmware of the ESP01F module. Choose the target "HappyModel TX Backpack", press and hold the EPS01F BOOT button, and use the TTL tool to connect to the ESP01 firmware flashing pad on the left side. Then, power on to flash the firmware. You can use WiFi for firmware upgrades in the future. After flashing the backpack firmware, solder the two solder pads on the back of the PCB.
2. Next, flash the main ELRS firmware of the ESP32 module. You need to use VSCODE for flashing the firmware, and you need to install the PlatformIO plugin in VSCODE. Choose the firmware "Unified_ESP32_2400_TX_via_UART", press and hold the EPS32 BOOT button, and use the TTL tool to connect to the ESP32 firmware flashing contact on the right side. Then, power on to flash the firmware.
3. After flashing the firmware, power on without connecting the remote control. After 60 seconds, it will automatically enter the WiFi upgrade interface. Connect your computer to the antenna WiFi, then open a browser and enter "http://10.0.0.1/hardware.html". On that page, upload the "Generic 2400 Gemini.json" file, which contains all the pin definitions.