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EspNow RCLink Transmitter

Designed for use in small short-range remote-controlled aircraft, vehicles and ESP-FC flight controller software.

Simple implementation of external module with EspNow RcLink protocol. Just upload code to ESP32 module and connect to your transmitters JR bay.

Module accepts PPM signal on GPIO13 and transmits 8 RC channels.

Connection diagram

EspNow RcLink connections

Note

Keep eye on power consumption, linear voltage regulator might get hot. Switching regulator (step-down) is recommended if voltage drop is high.

Flashing

  1. Download and unzip selected firmware from Releases Page
  2. Visit ESP Tool Website
  3. Click "Connect" and choose device port in dialog
  4. Add firmware file and set Flash Address to 0x00
  5. Click "Program"
  6. After success power cycle board

EspNow RcLink Flashing

Your module is redy to use.

Using with ESP-FC

To use ESP-FC as receiver just select SPI Rx (e.g. built-in Rx) as Receiver mode. Receiver provider doesn't matter here.

ESP-FC receiver

Transmitter and receiver binds automatically after power up, you don't need to do anything. Recomended startup procedure is:

  1. turn on transmitter first
  2. next power up receiver/flight controller