Specifications:
Source on GitHub: https://github.com/ExpressLRS/ExpressLRS
ExpressLRS community:ExpressLRS ? High Performance Radio Control Link
Configurator https://github.com/ExpressLRS/ExpressLRS-Configurator/releases
Firmware https://github.com/ExpressLRS/ExpressLRS/releases
ES900TX:
MCU:ESP32+ESP8285
Dimension: 55*39*11mm
Weight: 9.2g(only the TX module)
Antenna connector: SMA
VCC input: 5~13v, Recommend 5v~9v
Max Output Power: 27dBm operation, fan recommend)
ES900RX:
MCU:ESP8285
VCC input: 5v
Operation current: ~100Ma
Rx To FC protocol: CRSF
Dimension: 12*12*3mm
Weight: 0.60g (exclude antenna)
Antenna connector: IPEX1
Telemetry output Power: RC7 Firmware for ES900RX
Pack(915MHz ):
ES900TX
ES900 TX module x1
TX antenna x1
Molding JR Bay mounted case for TX module x1
Heat sink x1
Adapter wire x1
2006 Fan x1
ES900RX
ES900 RX module x1
RX antenna x2
Bind procedure:
1.Supply power to the ES900RX, wait until the red LED on the ES900RX are off, immediately turn off the power, and then repeat again the above steps. When the ES900RX is powered on for the third time, the red LED light will start to double flash quickly, which means that the ES900RX enters the binding mode.
2.Insert the ES900TX or ES915TX module to Radio transmitter, and choose External RF mode to CRSF protocol, then you can find ELRS menu from the Radio systems, Enter into ELRS and press [Bind], the Red LED on the ES900RX module will turning off then start blinking slowly and finally getting to be solid , this means bind successfully.