The ES24TX Slim Pro module is a complete solution which is already preloaded ExpressLRS firmware. With this module, you get a low latency and high packet rate RF module for RC Airplane and FPV Racing drone project. If you’re unfamiliar with ExpressLRS, you’ll love the superior range and unparalleled performance provided by the ESP-32 chipset and ESP8285 WiFi chip.

Please note, ELRS is a new open source project so please only order this if you are comfortable with regular firmware updates as the firmware is still in beta.  We will only be able to offer limited support due to the open source and constantly changing nature of the firmware.

Features

• Compatible with OpenTX remote controllers
• Helps the transmitter to operate with stability under high power conditions.
• ExpressLRS open-source software.
• Ultra Long Range
• Low Latency

Specifications

• RF Frequency: 868mHz (EU)
• Weight: 0.60 gram (excluding antenna)
• Telemetry output Power: <17dBm
• Operation current: ~100Ma
• Antenna connector: IPEX1
• Rx To FC protocol: CRSF
• Dimension: 12x12x3mm
• VCC input: 5v

Binding procedure:

1. Supply power to the ES900RX, wait until the red LED on the ES900RX is 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.
2. Insert the ES900TX module to the Radio transmitter, and choose External RF mode to CRSF protocol, then you can find the ELRS menu from the Radio systems.
3. Enter into ELRS, and press [Bind], the Red LED on the ES900RX module will turn off and then begin blinking slowly and finally become solid when the module binds successfully.

Includes

• 1x ES900RX Receiver (868Mhz version)
• 1x Adapter wire
• 1x RX antenna