Hi
I'm trying use AIO port as ADC. According to the spec, the maximum input voltage is VDD_AUX=1.35V. I, however, cannot read 1.35V.
Some sample aan read only up to 1.92V. Other sample can read up to 1.31V.
The supply voltage to CSR1011 chip is the regulated 3.3V.
Why cannot I read 1.35V? Please advise.
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Sugie,
The CSR101 has 10 bits ADC. And when all 10 bit is 1 the external value is 1.35V
You can use external resistor divider and read also 200V.
Why you can't read it 1.35V ?
Probably some error in your hardware.
Call my Skype nissim.test I will help.
Hi Nissim,
Thank you very much for your reply.
Hardware is simple resistor divider. I believe the hardware should be okay.
I will try to use "uEnergy TestApp.exe" if I can read 1.35V.
BTW, I'm in Japan. When can I call your Skype. Please let me know your region.
Thanks,
Hi
You can call my Skype anytime, I am online. Israel time, so GMT+2 see online my time https://goo.gl/JsxXck
Best after my 8:00
Skype: nissim.test