1. Utangulizi
This manual provides essential information for the proper installation, operation, and maintenance of your HAPPYMODEL ES24TX Pro ELRS Micro TX Module. Please read this manual thoroughly before using the product to ensure optimal performance and safety. The ES24TX Pro is an upgraded version of the ELRS Micro TX Module, designed for FPV drone applications, offering 2.4G 1000mW output, a cooling fan, and an RGB LED for status indication.
2. Taarifa za Usalama
- Always ensure proper antenna connection before powering on the module to prevent damage.
- Operate the module within its specified voltage mbalimbali (5V-10V).
- Keep the module away from water, moisture, and extreme temperatures.
- Do not attempt to disassemble or modify the module beyond what is described in this manual.
- Ensure adequate ventilation, especially when operating at higher power levels, to allow the cooling fan to function effectively.
3. Yaliyomo kwenye Kifurushi
Thibitisha kuwa vipengee vyote vipo kwenye kifurushi chako:
- ES24TX Pro Micro TX Module (1 unit)
- Happymodel 2.4GHz Moxon Antenna (1 unit)

Image: Contents of the ES24TX Pro package, showing the module, antenna, and branding stickers.
4. Vipimo
| Kikoa cha Udhibiti | ISM2400 |
| MCU | ESP32 (kuu), ESP8285 (aux) |
| Chip ya RF | SX1281IMLTRT |
| Module Bay | JR standard 5-pin socket (Micro JR bay compatible) |
| Masafa ya Marudio | 2400 MHz hadi 2500 MHz |
| Max Receive Refresh Rate | 500Hz |
| Min Receiver Refresh Rate | 25Hz |
| Nguvu ya Pato la RF | >30dBm (1000mW) |
| Ugavi wa Umeme Voltage | 5V ~ 10V |
| Uzito | 51 grams (without antenna) |
| Vipimo | 70mm x 49mm x 32.5mm |
| Antenna Gain | 4.18dBi |
| Lengo la Firmware | HappyModel_ES24TX_Pro_Series_2400_TX |
| Nyenzo | Shaba (vipengele vya ndani) |
| Rangi | Nyeusi |
5. Kuweka
Follow these steps to set up your ES24TX Pro module:
- Weka Antena: Securely attach the provided 2.4GHz Moxon antenna to the module's SMA connector. Ensure it is finger-tight.
- Ufungaji wa Moduli: Connect the ES24TX Pro module to your OpenTX or EdgeTX compatible radio transmitter's Micro JR bay. Ensure it is seated correctly.

Image: The ES24TX Pro module correctly installed in a radio transmitter's JR bay.
- Washa: Power on your radio transmitter. The module will receive power from the radio.
- Muunganisho wa Mpokeaji: Connect your drone's ELRS receiver to the module. This typically involves binding the receiver to the module. Refer to your ELRS receiver's manual for specific binding procedures.
- Kiashiria cha Hali: The RGB LED on the module will indicate its current status (e.g., binding mode, connected, error). Consult the ExpressLRS documentation for specific LED patterns.
Firmware Update (Important)
It is highly recommended to update the module's firmware to the latest stable version of ExpressLRS. Older firmware versions may have compatibility or performance issues.
- Repartitioner: Before flashing, ensure you run the repartitioner tool if required by the ExpressLRS firmware update instructions.
- Marekebisho ya Kubadili: Flash firmware baada ya adjusting any physical switches on the back of the module, if present and relevant for flashing mode.
- Flashing Method: Flash the firmware over USB, not via Wi-Fi, for a more reliable update process.

Picha: Ndani view of the ES24TX Pro module, highlighting the heatsink for thermal management.
6. Maagizo ya Uendeshaji
Once the module is installed and bound to your receiver, you can begin operation:
- Viwango vya Nguvu: Adjust the RF output power in your radio's ExpressLRS Lua script. Start with lower power settings for close-range flying and increase as needed for longer distances. The module supports up to 1000mW.
- Kiwango cha Pakiti: Select an appropriate packet rate (e.g., 50Hz, 100Hz, 250Hz, 500Hz) based on your flying style and receiver capabilities. Higher packet rates generally offer lower latency but may consume more power.
- Nguvu Inayobadilika: Utilize dynamic power settings if available in your firmware to automatically adjust power output based on signal quality, optimizing efficiency and reducing heat.
- Kipeperushi cha kupoeza: The integrated cooling fan will activate automatically when the module reaches certain temperatures, typically at higher power output levels, to maintain optimal operating temperature.

Picha: Mbele view of the ES24TX Pro module, highlighting the cooling fan and RGB LED indicator.
7. Matengenezo
Regular maintenance ensures the longevity and reliable performance of your ES24TX Pro module:
- Ukaguzi wa Antena: Periodically check the antenna for any damage or loose connections. A damaged antenna can significantly reduce range and potentially harm the module.
- Kipeperushi cha kupoeza: Ensure the cooling fan is free from dust and debris. A clogged fan can lead to overheating, especially at high power settings. Clean gently with compressed air if necessary.
- Sasisho za Firmware: Keep the module's firmware updated to benefit from performance improvements, bug fixes, and new features from the ExpressLRS project.
- Hifadhi: When not in use, store the module in a clean, dry environment, away from direct sunlight and extreme temperatures.
8. Utatuzi wa shida
If you encounter issues with your ES24TX Pro module, consider the following:
- Module Not Fitting: Some radio transmitters, despite having a Micro JR bay, may have slight variations in dimensions. Ensure your radio's module bay is fully compatible with the ES24TX Pro's dimensions (70mm x 49mm x 32.5mm). Do not force the module into the bay.
- Fan Rattling/Not Spinning: If the cooling fan rattles or does not spin correctly, particularly at higher power levels, it may indicate a bearing issue. This can lead to overheating and reduced performance. Consider reducing power output or contacting support if the issue persists.
- Poor Range/Failsafes:
- Check antenna connection on both the TX module and the RX.
- Ensure the antenna is not obstructed or damaged.
- Verify RF output power settings in your radio.
- Confirm that the receiver firmware matches the module's firmware version.
- Test in an open area away from interference sources.
- Masuala ya Kumweka kwa Firmware:
- Ensure you are using the correct firmware target for the ES24TX Pro (HappyModel_ES24TX_Pro_Series_2400_TX).
- Always use the USB method for flashing firmware.
- If encountering issues with outdated firmware, ensure you follow all steps, including running the repartitioner if specified by ExpressLRS documentation.
- Verify that your ExpressLRS Configurator is up to date.
- Module Not Binding: Ensure both the module and receiver are in binding mode. Check that the binding phrase is identical on both the transmitter and receiver.
9. Udhamini na Msaada
HAPPYMODEL products are typically covered by a limited warranty against manufacturing defects. Please retain your proof of purchase for warranty claims. For specific warranty terms, duration, and support, refer to the official HAPPYMODEL webtovuti au wasiliana na mchuuzi wako.
For technical assistance, firmware updates, and community support, visit the official ExpressLRS project website and forums. Many common issues can be resolved with community knowledge and up-to-date documentation.