ExpressLRS 模块 ES900TX/ES900RX 长距离 ELRS，915 MHz/868 MHz 可选

ES900TX and ES900RX modules are a set of Long Range 915MHz/868MHz(optional) wireless transmission equipment developed and designed based on the open source software ExpressLRS. This set of modules is characterized by ultra-long range, stable operation and low latency. The module is compatible with most Opentx remote controllers, especially suitable for Radiomaster TX16S and Jumper T12 T16 T18 series remote controllers, basically plug and play. We have specially customized the heat sink for the transmitter module, and also installed 2006 fan which can help the transmitter module to operate stably under high power conditions. It would working automatically when the TX power is 250mw or you can also set the power level when fan could working automatically.

Source on GitHub: https://github.com/ExpressLRS/ExpressLRS
ExpressLRS community:ExpressLRS – High Performance Radio Control Link

ES900TX and ES900RX kit Package include:
ES900 TX module x1(868MHz or 915MHz optional)
ES900 RX module x1(868MHz or 915MHz optional)
TX antenna x1
RX antenna x1

ES900TX Package include
ES900 TX module x1(868MHz or 915MHz optional)
TX antenna x1

ES900RX Package include
ES900 RX module x1(868MHz or 915MHz optional)
RX antenna x1

Specifications:
ES900TX：
MCU:ESP32+ESP8285
Dimension: 55mm*39mm*11mm
Weight: 9.2gram (only the TX module)
Antenna connector: SMA
VCC input: 5~13v, Recommend 5v~9v
RF Frequency optional: 915mhz or 868mhz(EU)
Maximum Output Power: >30dBm

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

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 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.

ES900RX firmware update by wifi procedure:

1. Make the ES900RX enter into Bind mode and then wait around 1 minute and don’t bind with it , then the ES900RX would get into Wifi mode automatically, you could connected the wifi hot pot “ExpressLRS RX” by enter the password “expresslrs”
2. Visit the firmware update website by enter “10.0.0.1” , and choose the correct firmware then click “update” , wait for around 1~2 minutes, the update progress would finished and you can find “firmware update successful and reboot” , that means update is finished.