Difference between revisions of "RPI-MDI"
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* Python PWM - Adafruit driver | * Python PWM - Adafruit driver | ||
| − | == Block Diagram == | + | == PCA9685 Block Diagram == |
[[File:RPI-MDI_Block-Diagram.PNG]] | [[File:RPI-MDI_Block-Diagram.PNG]] | ||
Revision as of 17:26, 5 January 2020
Contents
Raspberry Pi Servo Card
Features
- Raspberry Pi daughtercard
- Fits on "old" Model B or "new" Model B Plus board
- Three axis Servo PWM outputs (Servos not included)
- Two PWM Controlled LEDs
- I2C controlled 16-channel PWM controller PCA9685
- 5 channels used as above (Three Servo outputs, 2 LED outputs)
- PWM controller has internal built-in clock generator - no refresh required
- Even though the Raspberry Pi has 3.3V I/O, the PWM outputs run at 5V - compatible with typical servos
- Three switch inputs with on-board pull-ups which can be used as GPIO lines
- 3X of 10 uF SMT capacitors on rear of board for PWM/Servo noise reduction
- Right angle connectors for Low Profile
- Recessed connectors for side connectors for smallest form factor
- Very small size 1.4" x 1"
- Jumper to use 5V from Raspberry Pi (if your power supply has sufficient capacity) or pads for external power or additional capacitance if needed
- Python PWM - Adafruit driver
PCA9685 Block Diagram
Drivers/Example Code
- Github repo - Driver code
