
Happymodel EP1 TCXO and EP2 TCXO 2.4GHz ExpressLRS Receiver (ELRS)
This is a nano sized receiver for the ExpressLRS ELRS system. The EP1 TCXO uses a temperature conpensated crystal oscillator which means accurate MCU clock frequency for improved performance and reliability of your RC link. The EP1, EP2, and EP1Dual modules are based on the ESP8285 MCU that allows for upgrading via WiFi, along with the SX1280(SX1281)IMLTRT RF Module. Despite the small size the low latency and high refresh rate of the ELRS system allows these receiver to be used on full size/long range quads while also being small enough to be used on whoop size quads. The Happymodel EP1 RX includes a IPEX connector for a dipole antenna, while the EP2 RX includes a built in SMD antenna. 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 early nature of the firmware, but we think this project has great potential. Specifications: EP1 TCXO ReceiverType: ISM2.4GHzESP8285 MCUSX1280(SX1281)IMLTRT RF ModuleOmni directional antennaFrequency Range: 2400 MHz to 2500 MHzReceive refresh rate: 25HZ~500HzWorking voltage: 5vWeight: 0.41 gram(without antenna)Dimension: 10mm*10mm*6mmPeak gain: 2.23dBDefault Firmware out of factory: HappyModel_EP_2400_RX V2.2 versionBuilt-in a TCXO (temperature compensated crystal oscillator) EP2 TCXO ReceiverType: ISM2.4GHzESP8285 MCUSX1280(SX1281)IMLTRT RF ModuleSMD Ceramic antennaFrequency Range: 2400 MHz to 2500 MHzReceive refresh rate: 25HZ~500HzWorking voltage: 5vWeight: 0.44 gramDimension: 10mm*10mm*6mmPeak gain: 3.7dBDefault Firmware out of factory: HappyModel_EP_2400_RX V2.2 versionBuilt-in a TCXO (temperature compensated crystal oscillator) EP1 Dual TCXO Receiver (Buy it here)Type: ISM2.4GHzESP32 PICO D4, dual SX1280(SX1281)Antenna connector: IPEX MHF 1/U.FLRF Frequency: 2.4GHz (2400~2480MHz)Telemetry power: >19dbmReceiver protocol: CRSFInput voltage: +5V DC @ “+” padPCB size: 19mm x 14mmWeight: 1gram exclude antennaBuilt-in a TCXO (temperature compensated crystal oscillator)Default Firmware out of factory: Unified_ESP32_2400_RX Could upgrade to HappyModel EP1 Dual 2400 RX 3.0FW