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| author | Dan Halbert <halbert@halwitz.org> | 2018-02-27 22:03:52 -0500 |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2018-02-27 22:03:52 -0500 |
| commit | 568c04e6afa8016062f685b2198c0209f62827f4 (patch) | |
| tree | d07b76119f715add462983b335797adf64b61249 /docs/esp8266/tutorial/adc.rst | |
| parent | 6a2379fd0bfe10017d8abc5c36ef1d470c0d9b27 (diff) | |
| parent | ea633117d01d94e8d56ed94344e4b3e46b4eef03 (diff) | |
Merge pull request #650 from tannewt/merge_2x3.0.0-alpha.2
Merge in commits from 2.x branch.
Diffstat (limited to 'docs/esp8266/tutorial/adc.rst')
| -rw-r--r-- | docs/esp8266/tutorial/adc.rst | 19 |
1 files changed, 0 insertions, 19 deletions
diff --git a/docs/esp8266/tutorial/adc.rst b/docs/esp8266/tutorial/adc.rst deleted file mode 100644 index fa6fdaba7..000000000 --- a/docs/esp8266/tutorial/adc.rst +++ /dev/null @@ -1,19 +0,0 @@ -Analog to Digital Conversion -============================ - -The ESP8266 has a single pin (separate to the GPIO pins) which can be used to -read analog voltages and convert them to a digital value. You can construct -such an ADC pin object using:: - - >>> import machine - >>> adc = machine.ADC(0) - -Then read its value with:: - - >>> adc.read() - 58 - -The values returned from the ``read()`` function are between 0 (for 0.0 volts) -and 1024 (for 1.0 volts). Please note that this input can only tolerate a -maximum of 1.0 volts and you must use a voltage divider circuit to measure -larger voltages. |