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BetaFPV ELRS Micro TX Module 868MHz 500mW

47.57 EUR
Model: beta_elrs_micro_tx_868mhz_500mw
geographical location: EU LBT


Backpack Function

Some of the ExpressLRS TX modules include an additional ESP8285 chip, which lets us communicate wirelessly with other ESP8285 enabled devices using a protocol called espnow. We call this chip the "TX-Backpack". The aim of the TX-Backpack is to allow wireless communication between ExpressLRS, and other FPV related devices for command and control, or for querying config.

Button and OLED

The ELRS TX module could be configured via the OpenTX LUA script. With OLED and button, no-OpenTX radio controller that supports CRSF could use this ELRS Micro module easily. The following no-OpenTX radio controllers work well with this TX module. Futaba T16IZ, T16SZ and T18SZ (with update to 3.9e), Wsky ET16, Radiolink AT9S Pro.

Long Press: Unlock and enter the menu page, or apply current settings in the menu page.
Up/Down: Move to the last/next row.
Left/Right: Change the value of this row.
Short Press: Enable binding status or WiFi upgrade status.

Basic Configuration

ExpressLRS uses the Crossfire serial protocol (AKA CRSF protocol) to communicate between the radio transmitter and the TX module. So make sure your radio transmitter supports the CRSF serial protocol. We use the radio transmitter with the OpenTX system to show how to set up the CRSF protocol and LUA script. To set this up, in the OpenTX system, enter into model settings, and on the "MODEL SETUP" tab, turn off the "Internal RF". Next, enable "External RF" and select "CRSF" as the protocol.


Radio frequency 900 MHz
Input voltage 5V~12V
XT30 port 5V~12V
Output power 500mW

Package included

1 x BETAFPV ELRS Micro TX module

1 x BETAFPV Moxon antenna

1 x Micro TX module user manual

1 x Spare USB data cable (Type-A to Type-C)


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