BETAFPV Micro TX Manuale utente

Micro TX Module

Welcome to ExpressLRS!

User Manual V2.0

BETAFPV Micro RF TX module is based on ExpressLRS project,

open source RC link for RC applications. ExpressLRS aims to

achieve the best possible link peormance in both speed, latency

and range. This makes ExpressLRS become one of the fastest RC

links available while still oering long-range peormance.

Github Project Link: https://github.com/ExpressLRS

Facebook Group: https://www.facebook.com/groups/636441730280366

The ExpressLRS ocal project does NOT suppo the OLED function for the

moment. BETAFPV team has made a pull request on Github and wait for the

ocal to nish this merge. Please get the rmware from BETAFPV Github

nowadays until ExpressLRS ocal suppo.

https://github.com/BETAFPV/ExpressLRS

● Frequency bands ( 2.4GHz version): 2.4GHz ISM

● Frequency bands ( 915MHz/868MHz version): 915MHz FCC/868MHz EU

● RF output power:

25mW/50mW/100mW/250mW/500mW (2.4GHz 500mW version)

25mW/50mW/100mW/250mW/500mW/1W (2.4GHz 1W version)

100mW/250mW/500mW (915MHz/868MHz 500mW version)

● Packet refresh rate: 50Hz/150Hz/250Hz/500Hz (2.4GHz)

25Hz/50Hz/100Hz/200Hz (915MHz/868MHz)

● Input voltage: 5-12V (2S)

● USB po: Type-C

Speciﬁcations

XT30 Po(2S) USB Type-C

Fan+RGB

5D Button

OLED Screen

GH1.25 (GND, 5V, CRSF)

● Frequency bands ( 2.4GHz version): 2.4GHz ISM

● Frequency bands ( 915MHz/868MHz version): 915MHz FCC/868MHz EU

● RF output power:

25mW/50mW/100mW/250mW/500mW (2.4GHz 500mW version)

25mW/50mW/100mW/250mW/500mW/1W (2.4GHz 1W version)

100mW/250mW/500mW (915MHz/868MHz 500mW version)

● Packet refresh rate: 50Hz/150Hz/250Hz/500Hz (2.4GHz)

25Hz/50Hz/100Hz/200Hz (915MHz/868MHz)

● Input voltage: 5-12V (2S)

● USB po: Type-C

ExpressLRS uses the Crossre serial protocol (AKA CRSF

protocol) to communicate between the radio transmitter and

the RF TX module. So make sure your radio transmitter suppo

the CRSF serial protocol. Next, we use the radio transmitter with

OpenTX system to show how to setup the CRSF protocol and

LUA script.

Basic Conguration

BETAFPV Micro RF TX module is compatible with radio transmit-

ter which has the micro module bay (AKA JR/SLIM module bay,

e.g. Frsky Taranis X9D、TBS Mambo).

Note：Please assemble the antenna before power on. Otherwise, the PA

chip in the RF TX module will be damaged permanently.

Note: Please DO NOT use 3S or above bette to power up the TX module.

Otherwise, the power supply chip in the TX module will be damaged

permanently.

SMA-KE Po

CRSF Serial Po

5V-12V

DIP Switch

GND

ON DIP

234 5 6 7

ExpressLRS uses the CRSF serial protocol to communicate

between the radio transmitter and the RF TX module. To set this

up, in OpenTX system, enter into model settings, and on the

"MODEL SETUP" tab, turn o the "Internal RF". Next enable

"External RF" and select "CRSF" as the protocol.

CRSF Protocol

ExpressLRS use the OpenTX LUA script to control the RF TX

module, like bind or setup.

● Save the ELRSV2.lua script les onto the radio transmitter's

SD Card in the Scripts/Tools folder;

● Long press the "SYS" button (for RadioMaster T16 or similar

radios) or the "Menu" button (for Frsky Taranis X9D or similar

radios) to access the Tools Menu where you can nd ELRSV2.lua

script ready to run with only one click;

● Below image show the LUA script run successfully.

LUA Script

MODEL SETUP

Use global funcs

Internal RF

Mode

External RF

Mode

Channel Range

Receiver

OFF

CRSF

CH1-16

2/14

● With the LUA script, pilot could check and setup some

congurations of the RF TX module.

Note: The newest ELRSV2.lua script le is available in BETAFPV Suppo

website (Link in More Information Chapter).

0/200

Packet Rate

Telem Ratio

>TX Power

>VTX

Administrator

>WiFi

Connectivity

BLE Joystick

On the top right. Indicator which tells how many bad

UART packets and how many packets it's getting from

the radio per second.

RF transmitter packet rate.

Receiver telemet ratio.

Set the RF TX module output power and the fan

threshold value.

Set the VTX parameter of FC and goggles which have

bound with RF TX module.

Open the WiFi function of RF TX module or receiver,

for rmware update.

Open the bluetooth funtion, and enable BLE mode.

Bind Set the RF TX module into binding status.

Packet Pate

Telem Ratio

Switch Mode

Model Match

>TX Power

>VTX Administrator

>WiFi Connectivity

2 .0 .0 2b70c5

[BLE Joystick]

[Bind]

200(-112dbm)Hz

"BETAFPV 2400TX Micro"

1:64

Hybrid

Off

0/200

Note: When the RF TX module enters WiFi Upgrade status, the button will be

invalid. Please re-power the RF TX module after rmware update via WiFi.

There is a 5D button on the micro module. Below is the basic

operation of the button and OLED.

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.

Sho Press: Enable binding status or WiFi upgrade status.

Button and OLED

Note：You must re-power the receiver if you have changed the Packet Rate.

Sho Press:

Enable binding status

or WiFi upgrade status.

Up/Down:

Move to the last/next row.

Long Press:

Enter the menu page

or apply current settings

and lock.

Left/Right:

Change the value of this row.

Note: The LED will NOT ash when enter binding status. The module will exit

from binding status 5 seconds later automatically.

Note: If you reash rmware of the RF TX module with your own Binding

Phrase, please make sure the receiver has the same Binding Phrase. The RF TX

module and the receiver will bind automatically in this situation.

The Micro RF TX module comes with ocally major release

V2.0.0 protocol and no Binding Phrase inlcuded. So please make

sure the receiver works on ocally major release V2.0.0

protocol. And no Binding Phrase setted.

Micro RF TX module could enter binding status via ELRSV2.lua

script, as description in "LUA Script" chapter.

Besides, using the button and OLED, move to the Bind position

and sho press the button. Then the RF module will enter

binding status.

Bind

Pkt.rate

TLM Ratio

Power

RGB

500hz

1:128

100mW

Auto

Update

ExpressLRS

Bind

Sho press the button.

Then the RF module will enter binding status.

Note: The RGB LED will NOT change according to the output power. When the

output power is threshold value(default 250mW) or above, the fan will spin

automatically.

Micro RF TX module could switch the output power via

ELRSV2.lua script, as description in "LUA Script" chapter. Besides,

using the button and OLED, move to the Power position. Push the

button to the left/right could switch the output power.

Output Power Switch

As ExpressLRS project is still in frequently update, please check

BETAFPV Suppo (Technical Suppo -> ExpressLRS Radio Link)

for more details and newest maunal.

https://suppo.betafpv.com/hc/en-us

● Newest user manual;

● How to upgrade the rmware;

● FAQ and troubleshooting.

More Information

RGB

Pkt.rate

TLM Ratio

Power

500hz

1:128

Auto

Update

ExpressLRS

Bind

100mW

Push left/right could switch the output power.

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