MA5532-AS3935 Lightning Strike Detector



AS3935 Franklin Lightning Sensor

The AS3935 IC from AMS, Austria Microsystems, is a sensitive RF receiver coupled with a proprietary algorithm with able to detect the specific radio frequency emissions generated by lightning activity. The algorithms, hopefully, distinguish real lightning strikes from from man-made electromagnetic “disturbers” and can calculate the energy and distance of strikes over a 1–40km range.

The CJMCU-3935 version of the AS3935 Franklin Lightning Sensor:



Detecting Lightning with a Raspberry Pi:

Datasheet is available here:

Supplier of AS3935 here:

Sample Sketches:

Glenn Lyons VK4PK
Ver:gnl20211212 - pre published v0.9