Difference between revisions of "Pi-servo-HAT"
From SB-Components Wiki
(Created page with "<div class="row"> <div class="large-8 column"> == Raspberry Pi Servo HAT == 16 Channel Servo Driver HAT for Raspberry Pi is a motor driver HAT from which one can control up...") |
(→Pinout) |
||
| (13 intermediate revisions by the same user not shown) | |||
| Line 2: | Line 2: | ||
<div class="large-8 column"> | <div class="large-8 column"> | ||
== Raspberry Pi Servo HAT == | == Raspberry Pi Servo HAT == | ||
| − | 16 Channel Servo Driver HAT for Raspberry Pi is a motor driver HAT from which one can control up to 16 motors simultaneously. If you're building a robot with a lot of moving parts, or if you need to monitor a lot of | + | 16 Channel Servo Driver HAT for Raspberry Pi is a motor driver HAT from which one can control up to 16 motors simultaneously. If you're building a robot with a lot of moving parts, or if you need to monitor a lot of servo motors with PWM yields, the microcontroller's limited PWM yields will be a big problem. The most important thing you can do to solve this problem is to obtain a 16-Channel 12-Bit PWM/Servo Driver. |
=== Features === | === Features === | ||
| Line 28: | Line 28: | ||
== Pinout == | == Pinout == | ||
<table class="wikitable"> | <table class="wikitable"> | ||
| − | <tr> <th> | + | <tr> <th> Servo Driver HAT </th> <th> BCM</th> </tr> |
<tr><td> VCC </td> <td> 5V </td></tr> | <tr><td> VCC </td> <td> 5V </td></tr> | ||
<tr><td> GND </td> <td> GND </td></tr> | <tr><td> GND </td> <td> GND </td></tr> | ||
| Line 38: | Line 38: | ||
== Installation == | == Installation == | ||
==== Python ==== | ==== Python ==== | ||
| − | * | + | * Stack Servo HAT on Raspberry Pi. |
| + | |||
| + | * Now connect the external power supply of 6V - 12V DC on the Green connector as shown below, Turn on the adapter and it will power the Raspberry Pi. | ||
| + | [[File:Pi_Servo_HAT.png|600px]] | ||
| + | |||
| + | * Now connect Servo motor on any servo port ranging between 0-15. | ||
| + | |||
| + | * Clone Github repository by running below command in terminal. | ||
| + | <source lang="shell"> https://github.com/sbcshop/Raspberry-Pi-Servo-Driver.git </source> | ||
| + | |||
| + | * It will clone the repository in the '/home/pi' location, To enter cloned repository, enter the below command. | ||
| + | <source lang="shell">cd Raspberry-Pi-Servo-Driver </source> | ||
| + | |||
| + | * Now run the below command to execute the python code. | ||
| + | <source lang="shell">sudo python3 servo_controller.py </source> | ||
| + | |||
| + | * If you are using any other pin for servo motor (between 0-15) then change the default servo pin to the designated pin in code i.e <source inline> controller.Set_Pulse(15,i) </source> | ||
| + | <source lang="python"> | ||
| + | if __name__=='__main__': | ||
| + | controller = I2C_Controller(0x40, debug=False) | ||
| + | controller.setPWMFreq(50) | ||
| + | while True: | ||
| + | for i in range(500,2500,10): | ||
| + | controller.Set_Pulse(15,i) #setting 15th pin of the servo header(forward direction) | ||
| + | sleep(0.05) | ||
| + | |||
| + | for i in range(2500,500,-10): | ||
| + | controller.Set_Pulse(15,i) #setting 15th pin of the servo header(backward direction) | ||
| + | sleep(0.05) | ||
| + | </source> | ||
| + | <br> | ||
== Resources == | == Resources == | ||
| + | <b> Github </b> | ||
| + | * [https://github.com/sbcshop/Raspberry-Pi-Servo-Driver Source Code] | ||
| + | |||
| + | <b> Datasheet </b> | ||
| + | *[https://learn.sb-components.co.uk/images/e/ea/PCA9685_datasheet.pdf PCA9685 DataSheet] | ||
Latest revision as of 10:53, 25 June 2021
Raspberry Pi Servo HAT
16 Channel Servo Driver HAT for Raspberry Pi is a motor driver HAT from which one can control up to 16 motors simultaneously. If you're building a robot with a lot of moving parts, or if you need to monitor a lot of servo motors with PWM yields, the microcontroller's limited PWM yields will be a big problem. The most important thing you can do to solve this problem is to obtain a 16-Channel 12-Bit PWM/Servo Driver.
Features
- Adjustable frequency PWM up to about 1.6 kHz
- Up to 16-Channel servo/PWM outputs, 12-bit resolution for each channel (4096 scales)
- 3 pin connectors in groups of 4 so you can plug in 16 servos at once
- This board/chip uses an I2C 7-bit address
- 40-Pin GPIO accessibility
- I2C controlled and power supply connector
- Compatible with all the Raspberry Pi Models such as 4B, 3B+, 3, 2, B+, A, Zero, Zero W, etc.
Specifications
- Power supply: 5V OR 6V (power supply connector)
- Servo voltage: 5V
- Logic voltage: 3.3V
- Driver: PCA9685
- Control interface: I2C/GPIO
Buy it From : Click Here
Pinout
| Servo Driver HAT | BCM |
|---|---|
| VCC | 5V |
| GND | GND |
| SDA | GPIO 2 |
| SCL | GPIO 3 |
Installation
Python
- Stack Servo HAT on Raspberry Pi.
- Now connect the external power supply of 6V - 12V DC on the Green connector as shown below, Turn on the adapter and it will power the Raspberry Pi.
- Now connect Servo motor on any servo port ranging between 0-15.
- Clone Github repository by running below command in terminal.
https://github.com/sbcshop/Raspberry-Pi-Servo-Driver.git
- It will clone the repository in the '/home/pi' location, To enter cloned repository, enter the below command.
cd Raspberry-Pi-Servo-Driver
- Now run the below command to execute the python code.
sudo python3 servo_controller.py
- If you are using any other pin for servo motor (between 0-15) then change the default servo pin to the designated pin in code i.e
controller.Set_Pulse(15,i)
if __name__=='__main__':
controller = I2C_Controller(0x40, debug=False)
controller.setPWMFreq(50)
while True:
for i in range(500,2500,10):
controller.Set_Pulse(15,i) #setting 15th pin of the servo header(forward direction)
sleep(0.05)
for i in range(2500,500,-10):
controller.Set_Pulse(15,i) #setting 15th pin of the servo header(backward direction)
sleep(0.05)
Resources
Github
Datasheet