particle-iot / particle-iot/docs
FAQ: We need some best practices for ADC usage
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- JavaScript
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- 148
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- 266
- Avg merge
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Description
One permanently reoccuring source for confusion is the difference between Arduino ADCs and Particle's.
Not only the difference in resolution (12bit vs. 10bit) but also the lack of a Vref pin (Gen1 & Gen2) but even more the electronic differences regarding input impedance, lack of buffered/driven inputs, ...
Things to address might be when and why to use input/filter/decoupling caps, pull-resistors, impedance converters/buffers, ...
Contributor guide
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First steps
- Read the whole issue, then the project's contributing guide.
- Comment on the issue to say you are picking it up — it saves two people doing the same work.
- Fork the repository and make your change on a branch.
- Open a pull request that references the issue number.
Research direction
Locate the FAQ and ADC-related documentation in the repository, then review the existing Arduino and Particle ADC guidance before deciding where this topic belongs. Done means a clear FAQ entry covering the stated resolution, reference-voltage, input-impedance, buffering, capacitor, pull-resistor, and impedance-converter questions.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- arduino
- Domain
- documentation, embedded-iot
- Issue type
- Documentation
- Difficulty
- 4/5
- Estimated time
- 3-5 days
- Activity status
- Stale
- Clarity
- Mostly clear
- Newbie friendliness
- 35/100