Grove Digital Extender - 8 Channel for Raspberry Pi/Arduino / ESP8266

You would think this would be a simple board to use. Just plug your i2c from Raspberry Pi into one of the i2c sockets on the board and it should work. Well it doesn't. I have hooked this board up to multiple Raspberry Pi's (2 B+, 3 and 3+) Not ONE of them will recognize/find the i2c address of this board using i2cdetect. Oh, lights come on and everything, but since the Raspberry Pi doesn't see the boards i2c address, when I go to run SwitchDoc's own test software... it blows up.Oh and I know that my i2c is working because I have a small i2c lcd display hooked up at the same time on a grove extender card. Not only is the display detected but it is displaying data even tho the extender board isn't found.At the same time of purchasing this board I also bought their Pi2Grover HAT. It too does not work, even as a simple i2c pass thru.Do not buy these boards, the just DO NOT WORK.

I have built a dozen different projects using the Grove Digital Extender and the Pi Hat board and they operate just fine. SwitchDoc Labs has always provided the needed support, not that I have needed much.