Reference
Last revision 2026/01/15
Library
- Arduino Library: Download and install the DFRobot_AS3935 Library. (About how to install the library?)
- Raspberry Pi Library: Download and install the DFRobot_AS3935 RaspberryPi library.
Communication Protocol Description
- Communication Method: I2C
- I2C Address: Three options 0x03, 0x02, 0x01 (configurable via DIP switch)
- Interface: Gravity I2C (logic level: 0-VCC)
Principle
- The maximum estimated distance of lightning strike is 40km. Limited by the inherent measurement method and algorithm, the distance estimation resolution is 1~4km, 40 km in 15 steps. This is shown in the following table:
| No. | Distance (km) |
|---|---|
| 1 | 40 |
| 2 | 37 |
| 3 | 34 |
| 4 | 31 |
| 5 | 27 |
| 6 | 24 |
| 7 | 20 |
| 8 | 17 |
| 9 | 14 |
| 10 | 12 |
| 11 | 10 |
| 12 | 8 |
| 13 | 6 |
| 14 | 5 |
| 15 | Storm is Overhead！ |
- The estimated lightning intensity is 21 bits, i.e. 0 ~ 16777201. This value is just a pure number and has no physical meaning, but it can be used to compare the relative strength between different lightnings.
Other Supplementary Information
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