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BetaFPV ELRS Micro TX 2.4G/915MHz 500mW transmitter module

Price:1 797 uah with VATPrice in USD:42.99

Bonuses will be issued for this product upon purchase

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Brand: BetaFPVSKU 16361

• Версия 2.4G 500mW
• Версия 915MHz 500mW

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Description

The BetaFPV ELRS Micro TX transmitter module is based on the ExpressLRS open source project for RC devices. ExpressLRS aims to achieve the highest possible channel performance in terms of both speed, delay and range. This makes ExpressLRS one of the fastest and most affordable solutions for radio equipment and receivers, both for 2.4G frequency devices and 915MHz / 868MHz frequency devices for long distances.

The ExpressLRS module is based on Semtech Lora SX127x or SX1280 hardware for RX and TX respectively. It aims to achieve the highest possible channel performance in terms of both speed, latency and range. A maximum packet rate of 200Hz is supported at 900MHz and an incredible 500Hz at 2.4GHz.

Features

• Frequency bands (Micro RF Module 2.4G version): ISM 2.4GHz
• Frequency bands (Micro RF Module 915MHz/868MHz version): 915MHz FCC / 868MHz EU
• Refresh rate:
  • 915MHz/868MHz: 25/50/100/200Hz
  • 2.4GHz: 50/150/250/500Hz
• RF Output Power:
  • 2.4GHz: 25/50/100/250/500mW
  • 915MHz/868MHz: 100/250/500mW
• Input Voltage: 5V ~ 12V
• XT30 Port: 5V ~ 12V, 2S (8.4V) battery recommended, NOT support 3S (12.6V) or above
• USB Port: Type-C
• Size: Micro TX
• Base Firmware Version: V1.1.0

Accessories

• 1 x BetaFPV ELRS Micro TX module
• 1 x BetaFPV Moxon antenna (2.4G and 915MHz/868MHz versions are different)
• 1 x standard linear antenna
• 1 x servo cable
• 1 x USB Type-A to Type-C cable
• 1 x Micro TX module user manual

Compatibility

The BetaFPV ELRS Micro TX module is compatible with radio equipment that has a Micro (JR) type module bay, such as the Frsky Taranis X9D, Taranis QX7 A, TBS Mambo, RadioMaster TX16S, Jumper T16, etc.

Note:

• be sure to connect the antenna before turning on the module! Otherwise the module chip will be irreparably damaged.
• DO NOT use 3S or higherbatteries to power up the module through the XT30 port. Otherwise, the power supply chip in the TX module will be irreparably damaged.

About firmware

The official ExpressLRS project on Github currently does NOT support the OLED display feature. The BETAFPV team will work with the ELRS team and get the official repository to support OLED and joystick function as soon as possible.

Please download the firmware for BetaFPV ELRS Micro TX from Github until there is official support from ExpressLRS. The BetaFPV branch of ExpressLRS is version V1.1.0 and NO mandatory firmware phrase is needed.

Note: there are currently 2 known issues with this firmware. They will be resolved in the near future:

• Only supports the push function for the joystick button
• When entering the OLED menu page with a long press, the connection between the RF TX module and the receiver will be lost, the connection will be restored after exiting the menu page automatically

You can use the official ELRS V2.0-RC2 firmware, but the OLED and joystick functions will not be available. BetaFPV is working with the ELRS development team to ensure that the official ELRS firmware supports all Micro TX module functions. At this stage, the OLED feature will be officially supported in a future version 2.1.

How to install the mandatory phrase on BetaFPV ELRS Micro TX if the official ELRS does not yet support OLED display?

• First, download the master-betafpv-oled-menu source code from the BetaFPV page on Github to your local computer

• Second, open the ExpressLRS configurator and download the upzip source code from your local computer. Select the target device "BETAFPV 900/2400 TX Micro". Now you can configure your passphrase and other settings as usual

• Third, Build and Flash

Joystick Button and OLED

ELRS TX module can be customized using the OpenTX LUA script. Radios without OpenTX support but with CRSF protocol support can use the BetaFPV ELRS Micro TX module and configure it with a joystick button and OLED display.

The following non-OpenTX radios are compatible with this module: Futaba T16IZ, T16SZ and T18SZ (upgraded to 3.9e), Wsky ET16, Radiolink AT9S Pro.

There is a 5D joystick button on the module. Note, only the vertical direction (push) works and the other four directions do not work yet. Below are the basic operations of the button and OLED.

Long press:

• On the screen lock page, press and hold to unlock and go to the menu page
• On the menu page, press and hold to change the value of the selected row

Short press:

• On the screen lock page, a short press is not allowed
• On the menu page, press briefly 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 will be lost. The connection will automatically be re-established when you exit the menu page. You must re-enable the receiver if you have changed the Pkt Rate.
• When the RF TX module goes into WiFi update status, the button will not work. Please re-enable the RF TX module after firmware update via WiFi.

Basic Setup

ExpressLRS uses the Crossfire serial protocol (also known as the CRSF protocol) to communicate between the radio transmitter and the TX module. Therefore, make sure that your radio transmitter supports the CRSF serial protocol. This example uses a radio transmitter with an OpenTX system to show how to configure the CRSF protocol and LUA script. To configure this, on an OpenTX system, go into the model settings and on the "MODEL SETUP" tab, disable "Internal RF". Then enable "External RF" and select "CRSF" as the protocol.

ExpressLRS uses the OpenTX LUA script to control the TX module, such as binding or tuning.

• Save the ELRS.lua script files to the radio's SD card in the Scripts / Tools folder
• Press and hold the "SYS" button (for RadioMaster T16 or similar radio equipment) or the "Menu" button (for Frsky Taranis X9D or similar radio equipment) to access the Tools Menu where you can find the crhbgn ELRS ready to run with a single click;
• The image below shows that the LUA script has run successfully

Binding (Bind) and Output Power

The Micro RF TX module is shipped with the official ELRS protocol major version V1.1.0 and no binding phrase. So make sure the receiver is running the protocol of official versions V1.0.0 ~ V1.1.0. And no passphrase is set for binding with the receiver. The BetaFPV Micro RF TX module can enter the binding status via the ELRS.lua script as described in the "LUA Script" chapter. Alternatively, use the button and OLED to move to the BIND position and press and hold the button. Then the RF module will go to the bind status.

Note. The LED will NOT flash when the module enters the bind status. The module will exit the bind status automatically after 5 seconds. Short and consecutive press 3 times to bind.

The Micro RF TX module can switch output power via the ELRS.lua script as described in the manual in the "Script LUA" chapter. Alternatively, use the joystick button and OLED display to move to the Output position. A long press of the button can toggle the output power.

Note:

• The RGB LED will NOT change depending on the output power. When the output power is 250mW or higher, the fan will rotate automatically.
• The Micro RF TX module does NOT support 1W or 2W output power. When switched to this value, the system will automatically switch to 500mW.

Files

• Руководство пользователя BetaFPV ELRS Micro TX на китайском и английском языках
• LUA скрипты для ELRS V1

Useful links

• Руководство по обновлению прошивки BetaFPV ELRS Nano TX на английском языке
• Інформація про ExpressLRS, документація, огляд
• Ветка про BetaFPV ExpressLRS на Github
• Официальная страница проекта ExpressLRS на Github

Photos