Hello, I am trying to make a portable temperature sensor using nRF51822. I made a sensor that basically amplifies voltage level when the temperature increases, and I want to use nRF51822 to send obtained signal to smartphone so that I can monitor temperature using smartphone. Here are my questions.
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Can I use internal ADC of nRF51822 in this purpose? I can also work with external ADC, but I am curious. If it is possible, I found that internal ADC has Digital I/O inputs and reference input. To use internal ADC, should I connect some reference signal to its reference input, or is it okay to simply connect output of my temperature sensor to one of ADC input?
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I tried to run Hts code and I found that it is working nicely. However, I am not sure where I can assign the pin number that the output port of my temperature sensor will be connected to (mainly because I am bad at coding).
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I found that HTM, the monitor app in Nordic Toolbox, only displays the temperature level. Is it possible that I can put a plot of degree Celsius vs time? Also, it looks like the app does not update temperature level continuously. How can I modify it?
Thanks!
Chung