Seeed Studio Generic Node (Sensor Edition) is an ultra-low power LoRaWAN node designed for multi-sensor IoT applications. It accelerates the LoRaWAN device development lifecycle by providing reference hardware designs and source-available firmware, making it ideal for IoT prototyping and scalable production. Key Highlights Generic Node (Sensor Edition) integrates multiple on-board sensors and peripherals. With the provided SDK, developers can easily build IoT solutions for smart buildings, agriculture, healthcare, and smart cities. Featuring end-to-end encryption and firmware over-the-air updates, this secure and roaming-ready device ensures long-term reliability. Powered by standard replaceable AA batteries, it can last for years in the field with ultra-low power consumption. End-to-End Encryption for secure data transmission Firmware Over-The-Air Updates for easy remote maintenance Ultra-Low Power Consumption: ~1.8 μA in sleep mode Standard Replaceable 2xAA Batteries for long-lasting operation Open Development Tools: Hardware Setup (Sensor Edition Hardware Setup) and Software Setup (Sensor Edition Software Setup) Pre-Provisioned on The Things Industries LoRaWAN Network Server (The Things Network) Open Design (source-available) via GitHub STM32WL55CCU6 Dual-core M4/M0+ SoC with integrated low-power microcontroller and sub-GHz long-range radio Onboard Sensors: Measure temperature, humidity, and detect movement/vibration with high accuracy User Interface: Includes a button, RGB LED, and buzzer for input and feedback Application Hospital – Monitor environmental conditions and patient safety Retail – Track indoor air quality and occupancy Smart Building – Enable intelligent automation and monitoring Smart City – Support large-scale IoT deployments Agriculture – Monitor soil, climate, and crop conditions Smart Office – Enhance workplace efficiency and comfort Specifications Air Temperature Range -40 to 125 °C Accuracy ± 0.2 °C Response time (τ63%) 8 s Air Humidity Range 0 to 100 %RH Accuracy ± 2 %RH Response time (τ63%) 5 s Accelerometer Full Scales ±2g/±4g/±8g/±16g Output Data Rates 1Hz to 5.3 Hz Operating Temperature -40 to +85 °C. General Parameters Microcontroller STM32WL55CCU6 Dual-core M4/M0 + SoC Flash 256 Kbytes SRAM 64 Kbytes External Flash 16 Mbit Support Protocol Based on LoRaWAN v1.0.2 protocol Frequency 150MHz - 960MHz LoRa Power Output up to +14dBm (EU868),+22.00 dBm (US915) Support modulations LoRa, (G)FSK, (G)MSK, and BPSK Current Consumption ~1.8 μA (sleep mode w/RTC) Communication Distance 1 to 5km (depending on gateway antenna and environments) IP Rating IP 65 Operating Temperature -40 to +85 °C Operating Humidity 0 to 100 %RH Device Weight 80g Certification CE Battery (* Not contained in equipment) Alkaline Battery standard 2xAA Battery Life ≥ 4 years Other battery Voltage 2.2V to 5.5V Hardware overview Programming / debug pins - there are 7 pins. NRST - reset SWD / PA13 - programming/debug pin (bi-directional data pin) CLK / PA14 - programming/debug pin (clock signal) TxD / PA2 - serial pin (serial communication transmit data) RxD / PA3 - serial pin (serial communication receive data) GND - ground VCC - voltage out, 2.8 V User GPIO pins - there are 7 pins. PB3 - SWO / RTS / internally connected to the user button PA15 - internally connected to the piezo speaker PA12 - I2C, SCL PA11 - I2C, SDA VCC - voltage out, 2.8 V GND - ground VIN - voltage in Documents User Manual Hardware Software Architecture Temperature and humidity sensor Datasheet ULP 3-axis accelerometer Datasheet LoRaWAN Secure Element Datasheet 16 Mbit Flash Memory Datasheet Certification HSCODE 9025800090 USHSCODE 9025801000 UPC EUHSCODE 9013101000 COO CHINA Part List Sensor Node x1 User Guide x1
