The 2.4GHz ELRS series receiver is based on the open source architecture and program of ExpressLRS. The receiver uses ESP8285 MCU, so you can upgrade the firmware through WIFI. As long as the receiver is powered on and the remote control is turned off, you can find ExpressLRS after a while Hotspot, connect to this hotspot through a computer or mobile phone, the connection password is expresslrs, it will automatically enter the upgrade page, if not, you can manually visit 10.0.0.1 to upload the receiver firmware. Of course you can upgrade the firmware with general flight controller and external USB-TTL.

    Since the ELRS receiver uses a low latency and high refresh rate RF chip, it is very suitable for FPV competitions and remote FPV. At the same time, these receivers have ultra-light and ultra-small sizes, so they are very suitable for Tinywhoop.

 

    Regarding the choice of receiver firmware, our default shipment is DIY_2400_RX_ESP8285_SX1280. The contents of the receiver firmware of each manufacturer are basically the same, but the name is different (except BETAFPV, the circuit is different).

 

 

 

Indicator status:

 

Double flash: code matching mode

 

Slow flashing: No transmission signal is received

 

Steady on: receive the transmit signal

 

Fast flashing: WIFI upgrade mode

 

 

 

2.4G ISM type

ESP8285 MCU

 

SX1280IMLTRT RF

 

Frequency range: 2400 MHZ To 2500 MHZ

Maximum receiving refresh rate: 500HZ

Minimum receiving refresh rate: 25HZ

Working voltage: 5V

Weight: 0.5g (without antenna)

 

Working Agreement: CRSF (Betaflight)

 

 

 

EP24S: Half-wave dipole omnidirectional T-shaped antenna

 

       Peak gain: 3.16dB

 

       Size: 11mm*11mm*3mm