Dear techsupport,
I was wondering if i can use the grove I2C-ADC connector, to connect a GAS-sensor O2 to connect withy my I2C port of the grove outbreakboard which i am using for my microbit BBC. So can i make the next connection?
[micro;bit] to [grove shield for microbit v2.0] to [grove I2C-ADC] to [GAS-sensor O2]
Can this work and if not why not, what is the problem ?
With kind regards,
M. Huisman
Hi M. Huisman,
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<p>No, you can not. The Grove shield for micro:bit v2.0 is 3.3v and the Grove I2C-ADC voltage is 5v. </p>
1.
The Grove shield for micro:bit v2.0 is 3.3v
2. the Grove I2C-ADC voltage is 5v: the ADC chip voltage is (R7+R10)/(R5+R7+R10) * 5v=3.3v. If you replace the 5v to 3.3v, the ADC chip voltage will be 2.2v. NOT working. 
Dear technical support,
I was wondering how can I read analogy the o2 sensor with the use of a Micro:bit ? My thoughts is analog is just analog right ? Then Why is there a difference between the read analog signal with the uno and the read analog with the micro:bit?
Many Thanks for your help!
With kindness
M. Huisman
Verstuurd vanaf mijn iPhone
Hi M. Huisman,