Description Unit LoRaE220-433 is a LoRa communication unit for the 433MHz frequency band launched by M5Stack, using the LLCC68 chip solution. Compared with the traditional SX1278 solution, LLCC68 offers advantages such as longer transmission distance, faster speed, and lower power consumption. This unit supports over-the-air wake-up, carrier sensing, and user-defined communication keys. It enables point-to-point transmission and broadcast transmission through convenient serial communication. The onboard DIP switch allows the module to switch between four working modes, making it suitable for different wireless communication scenarios. Features LLCC68 chip solution Maximum transmit power of 22dBm, software-adjustable in multiple levels Supports user-defined communication keys Supports over-the-air wake-up Supports point-to-point transmission, broadcast transmission, and channel listening 433MHz frequency band, supporting 410.125-493.125MHz Onboard DIP switch for communication mode adjustment Serial communication Specifications Specification Parameter SKU U170-433 LoRa Module E220-400T22S@LLCC68 Supported Frequency Default 433MHz, supports 410.125-493.125MHz Maximum Transmit Power 22dBm, software-adjustable in multiple levels Receive Sensitivity -129 dBm Supply Voltage 5V Communication Method Serial communication (115200) Working Modes Transmission mode, WOR transmit mode, WOR receive mode, sleep mode Antenna Rubber duck antenna (@2.5dBi, total length 110mm, SMA male) Operating Temperature 0 ~ 40°C Product Size 71.4 x 24.0 x 8.0mm Product Weight 19.5g Package Size 138.0 x 93.0 x 9.0mm Gross Weight 24.9g Interface Uses HY2.0-4P Grove connection Designed for PORT.C connection Uses UART serial communication Onboard DIP switch supports working mode adjustment External rubber duck antenna with SMA male connector Applications Home security alarms and remote keyless entry Smart homes and industrial sensors Wireless alarm security systems Building automation solutions Wireless industrial remote controls Healthcare products Advanced metering infrastructure (AMI) Automotive industry applications Product List 1 x LoRaE220-433 Unit 1 x HY2.0-4P Grove Cable (20cm) 1 x Rubber Duck Antenna (@2.5dBi, total length 110mm, SMA male) Other Content Unit LoRaE220-433 supports four working modes: transmit/receive mode, WOR transmit mode, WOR receive mode, and parameter configuration mode. The onboard DIP switch is used to switch between these modes for different communication requirements. Do not exceed the supply voltage of 5.5V, as exceeding this may permanently damage the module. Resources Official Documentation Unit LoRaE220-433 Schematics PDF E220-400T22S User Manual Unit LoRaE220-433 Arduino Library Unit LoRaE220-433 UiFlow2 Docs Official Product Video YouTube Video FAQ What chip solution does Unit LoRaE220-433 use? It uses the E220-400T22S module based on the LLCC68 chip solution. What frequency band does it support? Its default frequency is 433MHz, and it supports 410.125-493.125MHz. What is the maximum transmit power? The maximum transmit power is 22dBm and can be adjusted by software in multiple levels. What communication method does it use? Unit LoRaE220-433 uses serial communication at 115200. What working modes does it support? It supports transmission mode, WOR transmit mode, WOR receive mode, and sleep mode. What is included in the package? The package includes 1 x LoRaE220-433 Unit, 1 x HY2.0-4P Grove Cable, and 1 x rubber duck antenna.
