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Add example for analog ICS-40180 microphone #135

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Merged
merged 12 commits into from
Oct 14, 2021
Merged

Add example for analog ICS-40180 microphone #135

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fa88fb2
Bootstrap example
Jul 9, 2021
f29e22a
Add README
Jul 9, 2021
af2257e
Add Fritzing schematic
Jul 9, 2021
c35c9aa
Add example to general README
Jul 9, 2021
1975e44
Fix typo
Jul 9, 2021
a20d433
Add main
Jul 9, 2021
8b55f4b
Add final changes
Jul 9, 2021
af936d1
Fix typo
Jul 9, 2021
afb2e52
Make a few fixes
Jul 14, 2021
12560fd
Clarify warning about voltages
Jul 15, 2021
9dffd1b
Make further clarifications
Jul 16, 2021
b7a8957
Tweak conversion factor, remove extra comment
Jul 19, 2021
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2 changes: 1 addition & 1 deletion adc/microphone_adc/README.adoc
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Expand Up @@ -20,7 +20,7 @@ image::microphone_adc_plotter.png[]

Wiring up the device requires 3 jumpers, to connect VCC (3.3v), GND, and AOUT. The example here uses ADC0, which is GP26. Power is supplied from the 3.3V pin.

WARNING: Most boards will take a range of voltages from the Pico's default 3.3v to the 5 volts commonly seen on other microcontrollers. Ensure your board works with either the 3.3V or 5V supplied by the Pico.
WARNING: Most boards will take a range of voltages from the Pico's default 3.3v to the 5 volts commonly seen on other microcontrollers. Ensure your board works with either the 3.3V or 5V supplied by the Pico. If you supply 5V, then the board must have a level shifter to reduce the output voltage to 3.3V to be compatible with the Pico's GPIOs, otherwise you risk damaging the Pico!

WARNING: Do not connect a voltage greater than 3.3V to the Pico's ADC (and any of its GPIO) as this may result in permanent damage.

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