Gravity: AS3935 Lightning Sensor
Overview
The SEN0290 is a specialized lightning detection module based on the AMS AS3935 Franklin Lightning Sensor IC. It is designed to detect the electromagnetic signature of lightning strikes within a 40km range, providing estimated distances in 15 discrete steps. This Gravity-compatible board includes an integrated antenna and a built-in algorithm to distinguish between actual lightning and man-made electrical noise.
Why Choose This Part
The module operates over a wide voltage range of 3.3V to 5.5V, making it compatible with both low-power MCUs and standard 5V systems. It features a robust rejection algorithm for man-made disturbers and provides digital I2C communication, simplifying the integration of sophisticated atmospheric sensing into existing embedded projects.
Applications
Key Specifications
Getting Started
Connect the sensor to an Arduino or compatible microcontroller using the Gravity 4-pin I2C cable. Use the DFRobot_AS3935 library to initialize the sensor, calibrate the resonance frequency for optimal sensitivity, and set the noise floor levels. The IRQ pin must be connected to an external interrupt-capable GPIO to capture real-time detection events without polling.
