• Description

Happymodel 915MHz ExpressLRS Transmittter Module ES900TX

The ES900TX is Happymodel's updated 915MHz/868MHz ExpressLRS Transmitter module for long range flying. It is based on the open source software ExpressLRS that offer long transmission ranges, a reliable control link, and convenient features like over-the-air updates and a no-button binding procedure.

The Happymodel ExpressLRS system is plug and play with OpenTX radios such as the Radiomaster TX16S, Jumper T16, and Jumper T18. Long range has never been more accessible!

The updated ES900TX module now includes a heatsink and fan to counter the heat released during use. The included 2006 fan now automatically runs when the transmitter power is set to 250mW.

Check out the Happymodel ES900RX Receiver Module designed for this transmitter.

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: <33dBm(For >27dBm operation, we recommend add a fan for force cooling)
Wifi update firmware function for ES900TX would be available in a short time.

ExpressLRS RC7 firmware for ES900 RX 915MHz and 868MHz [update by wifi]

ES915RX(Discontinued) ES900 RX ES915TX(Discontinued) ES900TX
MCU STM32F103RBH6 ESP8285 STM32F103C8T6 ESP32+ESP8285
RF Chip SX1276IMLTRT SX1276IMLTRT SX1276IMLTRT SX1276IMLTRT
Antenna plug IPEX4 IPEX1 SMA SMA
Dimension 16mm*10mm*3mm 12mm*12mm*3mm 55mm*39mm*13mm 55mm*39mm*11mm
Weight 0.7g 0.6g / /
Firmware upload Betaflight pass-through Betaflight pass-through or Wifi SD-card or Configurator Wifi or Configurator

 

As ExpressLRS firmware is constantly being improved and updated, we strongly recommend that you use the ExpressLRS configurator update firmware to get the best experience
Configurator: https://github.com/ExpressLRS/ExpressLRS-Configurator/releases
Firmware: https://github.com/ExpressLRS/ExpressLRS/releases


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 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.


ES900RX Firmware Update by WiFi Procedure


- 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”
- 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.


Package Includes


ES900TX 915MHz:

1 x ES900TX 915MHz Module
1 x TX 915MHz Antenna
1 x Molding JR Bay mounted case for TX module
1 x Heat sink
1 x Adapter wire
1 x 2006 Fan

Description

Happymodel 915MHz ExpressLRS Transmittter Module ES900TX

The ES900TX is Happymodel's updated 915MHz/868MHz ExpressLRS Transmitter module for long range flying. It is based on the open source software ExpressLRS that offer long transmission ranges, a reliable control link, and convenient features like over-the-air updates and a no-button binding procedure.

The Happymodel ExpressLRS system is plug and play with OpenTX radios such as the Radiomaster TX16S, Jumper T16, and Jumper T18. Long range has never been more accessible!

The updated ES900TX module now includes a heatsink and fan to counter the heat released during use. The included 2006 fan now automatically runs when the transmitter power is set to 250mW.

Check out the Happymodel ES900RX Receiver Module designed for this transmitter.

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: <33dBm(For >27dBm operation, we recommend add a fan for force cooling)
Wifi update firmware function for ES900TX would be available in a short time.

ExpressLRS RC7 firmware for ES900 RX 915MHz and 868MHz [update by wifi]

ES915RX(Discontinued) ES900 RX ES915TX(Discontinued) ES900TX
MCU STM32F103RBH6 ESP8285 STM32F103C8T6 ESP32+ESP8285
RF Chip SX1276IMLTRT SX1276IMLTRT SX1276IMLTRT SX1276IMLTRT
Antenna plug IPEX4 IPEX1 SMA SMA
Dimension 16mm*10mm*3mm 12mm*12mm*3mm 55mm*39mm*13mm 55mm*39mm*11mm
Weight 0.7g 0.6g / /
Firmware upload Betaflight pass-through Betaflight pass-through or Wifi SD-card or Configurator Wifi or Configurator

 

As ExpressLRS firmware is constantly being improved and updated, we strongly recommend that you use the ExpressLRS configurator update firmware to get the best experience
Configurator: https://github.com/ExpressLRS/ExpressLRS-Configurator/releases
Firmware: https://github.com/ExpressLRS/ExpressLRS/releases


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 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.


ES900RX Firmware Update by WiFi Procedure


- 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”
- 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.


Package Includes


ES900TX 915MHz:

1 x ES900TX 915MHz Module
1 x TX 915MHz Antenna
1 x Molding JR Bay mounted case for TX module
1 x Heat sink
1 x Adapter wire
1 x 2006 Fan

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