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servo: add driver using PWM

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This PR adds support for controlling servos. For example, on the Arduino
Uno it should be able to control up to 6 servos jitter-free when using
all available PWM pins.

I haven't added support for setting a position in degrees, mainly
because this varies by servo and it's probably necessary to configure
the bounds in some way. Therefore, I added just SetMicroseconds. This
makes the API possible to use and leaves the possibility of adding a
SetPosition in the future.
This commit is contained in:
Ayke van Laethem
2020-12-21 17:13:35 +01:00
committed by Ron Evans
parent 428db3cd12
commit c765ef3970
4 changed files with 129 additions and 1 deletions
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README.md
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@@ -101,6 +101,7 @@ The following 64 devices are supported.
| [PCF8563 real time clock](https://www.nxp.com/docs/en/data-sheet/PCF8563.pdf) | I2C |
| [Resistive Touchscreen (4-wire)](http://ww1.microchip.com/downloads/en/Appnotes/doc8091.pdf) | GPIO |
| [Semihosting](https://wiki.segger.com/Semihosting) | Debug |
| [Servo](https://learn.sparkfun.com/tutorials/hobby-servo-tutorial/all) | PWM |
| [Shift register (PISO)](https://en.wikipedia.org/wiki/Shift_register#Parallel-in_serial-out_\(PISO\)) | GPIO |
| [Shift registers (SIPO)](https://en.wikipedia.org/wiki/Shift_register#Serial-in_parallel-out_(SIPO)) | GPIO |
| [SHT3x Digital Humidity Sensor](https://www.sensirion.com/fileadmin/user_upload/customers/sensirion/Dokumente/0_Datasheets/Humidity/Sensirion_Humidity_Sensors_SHT3x_Datasheet_digital.pdf) | I2C |