Thunderboard and Grove Sunlight / IR / UV I2C Sensor

dragos3000
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Posts: 2

Thunderboard and Grove Sunlight / IR / UV I2C Sensor Sept 3, 2018 6:30:52 GMT -8

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Post by dragos3000 on Sept 3, 2018 6:30:52 GMT -8

Hi,
I want to use on a Pi a Thunderboard and a Grove Sunlight / IR / UV I2C Sensor.
I connect them with a Pi2Grover - Raspberry Pi to Grove Connector Interface Board.
They each work individually but when they are both connected, the thunderboard stops working and only the Sunlight sensor works.

Please help!

Last Edit: Sept 3, 2018 7:07:31 GMT -8 by dragos3000

SDL
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Posts: 5,655
Raspberry Pi: Yes
Other Device: PC, arduino, beagleBone

Thunderboard and Grove Sunlight / IR / UV I2C Sensor Sept 3, 2018 9:31:56 GMT -8

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Post by SDL on Sept 3, 2018 9:31:56 GMT -8

Dragos,

The AS3935 Lightning detector chip used on the Thunder Board does not like anything else on the same I2C bus segment on the Raspberry Pi. This is a well known problem with the chip.

If you need to use it with other I2C devices (which is a common problem), then you need to include an I2C Mux in the system (as we do with GroveWeatherPi) and put the Thunder Board on it's own I2C Bus segment.

shop.switchdoc.com/products/i2c-4-channel-mux-extender-expander-board-grove-pin-headers-for-arduino-and-raspberry-pi

BP

dragos3000 New Member Posts: 2	Thunderboard and Grove Sunlight / IR / UV I2C Sensor Sept 3, 2018 11:27:04 GMT -8 SDL likes this Quote Select Post Deselect Post Link to Post Member Give Gift Back to Top Post by dragos3000 on Sept 3, 2018 11:27:04 GMT -8 Thanks for the quick reply. I was afraid of that. Will order one.

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Thunderboard and Grove Sunlight / IR / UV I2C Sensor

Post by dragos3000 on Sept 3, 2018 6:30:52 GMT -8

Post by SDL on Sept 3, 2018 9:31:56 GMT -8

Post by dragos3000 on Sept 3, 2018 11:27:04 GMT -8

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