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Solder Friendly 2.4GHz ESP32-C3 ExpressLRS Receiver

πŸš€ The Easiest DIY ExpressLRS Receiver in the World​

This project is super easy to make and ultra low cost.
You only need two modules β€” no SMD soldering, no extra components No FTDI needed, use type-C integrated:

  • 🧠 ESP32-C3 SuperMini
  • πŸ“‘ E28 2.4GHz LoRa Module (SX1280)

Just solder these two modules on a PCB, flash the firmware, and you have a working ExpressLRS 2.4GHz receiver!

Features​

  • 20x30 footprint
  • No SMD components (for easy soldering)
  • Components are placed for ease of soldering (easy iron access)
  • Use ESP32-C3 Supermini developerment board (LDO, LED already solded)
  • 2.4G LORA Module E28

Wiring Diagram​

You can hand made use this wiring diagram, or use PCB below

ESP32-C3 RX Wiring

Editing​

  • The PCB has been developed in EasyEDA.
ESP32-C3 RX Wiring ESP32-C3 RX Wiring

Schematic​

Ordering​

  • I've had good results using JLCPCB.

Build​

  • Build should be self-explanatory soleing ESP32 and E28 in different side of the PCB.

BOM​

  • ESP32-C3 Super Mini
  • Ebyte E282G4M12S Module

Flashing​

Plug in usb cable to computer, use web-flasher, choose BAYCKRC 2.4G ESP32-C3 RX

image

RX​