BETAFPV ELRS Micro TX Module 2.4GHz

Features:

• The BETAFPV Micro RF TX module is based on the ExpressLRS project, an open source RC connector for RC applications. The goal of the ExpressLRS project is to achieve the best possible communication performance in terms of speed, latency, and range. As a result, the ExpressLRS is one of the fastest RC connectors while providing a long range.

Now released black version with maximum 1W RF output power. Supports all 5D button dimensions based on BETAFPV ELRS V2.0.0 software. Added new "backbone" function, allowing wireless communication between ExpressLRS and other FPV related devices for commands and control or configuration settings.

Specification:

• Manufacturer: BETAFPV;
• Output voltage: 500mW/1W;
• Model: ELRS Micro TX Module;
• XT30 port: 5V~12V, 2S(8.4V) battery recommended, does not support 3S(12.6V) or higher;
• Input voltage: 5V~12V;
• USB port: type-C connector.

More

The BETAFPV Micro RF TX module is compatible with radio transmitters that have a micro module slot (AKA JR/SLIM module slot, e.g. Frsky Taranis X9D, TBS Mambo). Below is a schematic of the 500mW version of the module.

Long press of the button: 

On the lock screen page, long press to unlock and enter the menu page;

On the menu page, long press to change the value of a row.

Short button press:

On the lock screen page, short press "invalidly";

On the menu page, briefly press to move to the next line.

Note: When the RF TX module enters the menu page, the connection between the RF TX module and the receiver is lost, the connection is restored automatically after exiting the menu page.

If you have changed the Pkt Rate, you must restart the receiver.Note: When the RF TX module enters the WIFI update state, the button will be inactive.

After updating the software via WIFI, turn the RF TX module back on.

Below is the basic operation of the BETAFPV ELRS V2.0.0 software button and OLED.

Warning: DO NOT use a 3S or larger battery to power the TX module via the XT30 port. Otherwise, the power chip in the TX module will be permanently damaged.

Warning: Do not turn on all DIP switches at the same time. For information on turning on/off DIP switches according to different usages, see below.

Note: The BETAFPV Micro TX module ELRS V2.0.0 firmware does not include binding status. Therefore, please make sure the receiver is running on the officially released main V2.0.0.0 protocol and without the Binding Phrase set.

How to determine the pairing status of this Micro TX module when the official ELRS main version does not yet support OLED?

1. Download “master-betafpv-oled-menu” from Github;

2. Open ExpressLRS Configurator and upload the zip file. Select the target device “BETAFPV 900/2400 TX Micro”. You can now set your pairing status and other options as usual;

3. Flash.

Package:

1x BETAFPV ELRS Micro TX module;
1x BETAFPV Moxon antenna;
1x Monopole antenna;
1x Micro TX module user manual;
1x Spare USB data cable (Type-A to Type-C).

Warning: Please install the antenna before turning on the device. Otherwise, the PA chip of the Nano TX module will be permanently damaged!

Note: Please do not change the Pkt Rate, otherwise the receiver will need to be restarted.

Antenna colors may vary.

Links: 

github.com/BETAFPV/ExpressLRS

User manual of How to Flash Firmware of ELRS RX/TX.

github.com/ExpressLRS/ExpressLRS