Using the ExpressLRS Lua Script, look for a C in the top-right corner of the screen which indicates TX module and Receiver are Connected and Communicating. The new range of programmers hold a 3-year guarantee for consumer and installer peace of mind and are focused on value, quality and simplicity, offering an economical and durable solution for households. If the ExpressLRS Lua Script is showing a C in the top-right corner alright, but then that line disappears and is replaced with a line saying "Model Mismatch", do not worry. ExpressLRS has detected that the set Model ID in the Receiver is different from the Receiver ID set in the current Model in your Radio Model Configuration.

If it starts Blinking Slowly (500ms Blink Pattern), you will need to move the receiver wiring to a different UART. The ESi Controls 2 Channel Programmer offers flexibility and reliability for use in any domestic heating and hot water installations. The ES2247B is a twin channel multi purpose programmer, designed for separate control of your heating and stored hot water. The heating and hot water programmes are independent of each other, giving you the opportunity to operate the system in the most energy efficient and cost effective manner. Binding can be done with either a hard-coded unique Binding Phrase or in a more traditional way where you put the receiver and transmitter into bind mode, and they link up. It is designed primarily for separate control of your heating and stored hot water (S or Y plan). The heating and hot water programmes are independent of each other, giving you the opportunity to operate the system in the most energy efficient and cost effective manner.

If the button is being pressed or pinched, remove the cause of the pressing or pinching. Heatshrink can sometimes press a button on the receiver. If there is no other Full UART, you can try wiring a Pull-up Resistor: Connect a Resistor (300 Ohm to 1k Ohm value; a lower value is more effective) between this UART's RX pad and either a 5v or 3.3v pad as shown below: If you'll be updating or reflashing your ExpressLRS firmware into your device anyway, using a Binding Phrase is a no-brainer. With the release of ExpressLRS v3.0, updating your Binding Phrase via the WebUI is an even more compelling reason to use a Binding Phrase. Selecting the most suitable type of Heating Control is an important decision. Once you determine that Programmers & Time Switches are the best solution then the ESi 2 Channel Multi-Purpose Programmer - ES2247B is assuredly worth factoring in to your final decision.

A Receiver flashed or set with a Binding Phrase WILL NOT initiate Manual Binding mode, however many times you try the procedure below. You must first reflash the receiver with the Binding Phrase field disabled and/or unset. Why would you not use a bind phrase though if you're already having to flash the RX anyway? a Receiver with version string of 3.2.0 will NOT sync or bind with a TX Module with firmware version 2.4.0If you are using any of the Digital FPV systems like the DJI FPV Air Unit, Caddx Vista or DJI O3 Air Unit, and you wired or connected all six wires to your Flight Controller, you will need to remove the SBUS/DJI HDL wire.