Item Type: Module RF Chip: SX1268 Working Frequency Band: 410.125-493.125MHz Supporting Antenna: 433MHz Antenna (2dBi) Air Speed: 0.3kbps-62.5kbps (Programmable Control) Transmit Power: 22.0dBm (10/13/17/22dBm Programmable Control) Receive Sensitivity: -147dBm (Air Speed 2.4kbps) Emission Current: 110mA (Instantaneous Power Consumption) Receive Current: 11mA Sleep Current: 2μA (for lora module software is turned off) Communication Interface: UART (TTL Level) Baud Rate Range: 1200bps-115200bps (default is 9600bps) Sub-Package Length: 240Byte (32/64/128/240Byte Programmable Control) Cache Capacity: 1000Byte Supply Voltage: 5V Logic Level: 3.3V/5V Application Scenarios: Smart home, industrial sensors, building automation, smart meter reading, other IoT applications Chip and Interface Annotation: 1. SX1268 for LoRa module 2. 74HC125V: voltage level translator 3. CP2102: USB TO UART converter 4. For Raspberry Pi GPIO connector: for connecting with for Raspberry Pi 5. USB to UART port 6. UART header: for connecting host boards like STM32/for Arduino 7. SMA antenna connector 8. IPEX antenna connector 9. Indicators: RXD/TXD: UART RX/TX indicator AUX: auxiliary indicator PWR: power indicator 10. UART selection jumpers A: control the for LoRa module through USB TO UART B: control the for LoRa module through for Raspberry Pi C: access for Raspberry Pi through USB TO UART 11. for LoRa mode selection jumpers Short M0, short M1: transmission mode Short M0, open M1: configuration mode Open M0, short M1: WOR mode Open M0, open M1: deep sleep mode 1、 The expansion board adopts a new generation of for LoRa spread spectrum technology, supports 433MHz frequency band, can transmit data through serial port, communication distance is up to 5km, and supports automatic relay to expand communication distance. 2、 It also supports air wakeup, wireless configuration, carrier monitoring, communication keys, and more. 3、 Compared with the ordinary for LoRa module, it has a longer communication distance, faster speed, lower power consumption, better security and anti-interference, and can be widely used in various fields such as industrial, smart home and data acquisition. 4、 Onboard for Raspberry Pi 40pin GPIO interface for for Raspberry Pi series motherboards. 5、 The onboard CP2102 USB to UART chip facilitates serial port debugging. 6、 The module UART control interface is introduced to facilitate access to the main control board such as the for Arduino/STM32. 7、 Onboard 4 LED indicators for easy viewing of module operation status. 8、 With for LoRa spread spectrum technology, up to 84 channels are available, the communication distance is farther, and the anti-interference ability is stronger. 9、 Supports automatic relay networking, multi-level relay is suitable for ultra-long-distance communication, and multiple networks can be operated in the same area. 10、 Supports low-power features such as deep sleep and air wake-up for battery-powered applications. 11、 The user is allowed to set the communication key by himself and cannot be read, which greatly improves the confidentiality of the user data. 12、 Support LBT function, monitor the channel environment noise before sending, which can greatly improve the communication success rate of the module in harsh environments. 13、 Supports RSSI signal strength indication for evaluating signal quality and improving communication networks. 14、 Support wireless parameter configuration, remotely configure or read module parameters by sending command packets wirelessly. 15、 Support fixed-point transmission, broadcast transmission, channel monitoring. 16、 Provide a complete supporting information manual (sample programs such as for Raspberry/STM32). SX1268 433M for LoRa Expansion Board x 1 Screw Package x 1 Antenna x 1 USB Cable x 1