ES900RX:
MCU:ESP8285
VCC input: 5v
Operation current: ~100Ma
Rx To FC protocol: CRSF
RF Frequency optional: 915mhz or 868mhz(EU)
Dimension: 12mm*12mm*3mm
Weight: 0.60 gram (exclude antenna)
Antenna connector: IPEX1
Telemetry output Power: <17dBm
Usage: FPV race DIY part, RC model airplane, RC car, RC boat
Bind procedure:
- 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
- Insert the ES900TX 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.











Hello Happymodel!
Are the antennas long enough or do I have to use other antennas for 868Mhz ?
Kind regards!
Hi.
I have an ES915RX, and I did not need to bind like described in the Bind Procedure Section. When I turn on the receiver, it bound automatically. And it is working, apparently. However, I am live in Brazil, when I flash AU firmware on TX and RX, the bind not happens. Why?
Thanks for any help.
ksped@live.com
Where can i purchase these Flight Controllers
Thanks R.K
ottimo prodotto.
ma non si trovano piu le riceventi.
dove si possono acquistare?? su bangood finite su aliexpress finite…. HELP
hello, can i order rx and tx with 868mhz antennas directly from you with shipping to germany ? how much would it cost ?
-René Mach
I have new es900rx and i update firmware via wifi,, but after done my es900rx won’t connect to es900tx,, and led indicator just red blink 1x in long time..
What it mean indicator,
And how i can do for reupdate a gaint..?
Please help..
solved? Because I have the same problem. ES900TX & ES900RX not binding but RX’s led is litting long single RED.
Hi there,
awhile back I purchased a happymodel 915TX and 915RX. since then I have purchased a ES900TX, will the ES915RX work with the ES900TX