Lightning is a leading cause of storm deaths and causes billion $ damage. The AS3935 Franklin Lightning Sensor is capable to detect lightning activity up to 40km, far greater than human senses. It detects both cloud-to-ground and cloud-to-cloud flashes. The very low power listening mode (60uA & PD=1uA) makes it possible to use it in portable devices.
Real-World Safety and Applications
The AS3935 offers invaluable early warning for numerous vulnerable applications. From alerting construction crews working outdoors and securing agricultural operations to protecting assets in remote locations, early lightning detection is crucial for safety. Integrating this sensor into smart home security systems provides residents with precious minutes to disconnect sensitive electronics and move to a safe location. The ability to distinguish between harmless ambient noise and a genuine lightning strike is critical for reliable safety devices in exposed or industrial settings.
Technical Accuracy and Integration
A sophisticated algorithm for higher level of accuracy minimizes false & man made signals with distance estimation. The sensor’s algorithm is key to its robust real-world performance; it effectively suppresses common sources of electrical interference, such as motors and switches, which often trigger false alarms in simpler systems. This robust noise rejection ensures high confidence in the output, providing accurate distance estimation up to the full 40km range. Furthermore, the patented auto antenna tuning allows for tolerance variations during manufacturing and antenna Mis-tuning’s, simplifying integration and accelerating the time-to-market for any portable lightning detection system.
Device
Range [KM]
40
Antenna tuning
YES
Flashes
Cloud-to-ground Inter-Cloud
Interface
SPI
Voltage [V]
2.4 to 5.5
Current [μA]
2 down
70 listening
Package
MLPQ16
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