Difference between revisions of "27-Channel PWM Shield"
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*[https://github.com/linksprite/27ChannelPWMshield/blob/master/PwmShieldTest.ino PWM module Arduino libraryThe sample Arduino sketch] | *[https://github.com/linksprite/27ChannelPWMshield/blob/master/PwmShieldTest.ino PWM module Arduino libraryThe sample Arduino sketch] | ||
*[http://learn.linksprite.com/arduino/shields/explanation-of-27-channel-pwm-shield/ Explanation of the PWM shield] | *[http://learn.linksprite.com/arduino/shields/explanation-of-27-channel-pwm-shield/ Explanation of the PWM shield] | ||
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| + | == How to buy == | ||
| + | |||
| + | Here to buy 27-Channel PWM Shield on [http://store.linksprite.com/27-channel-pwm-shield/ store] | ||
Revision as of 09:10, 17 December 2014
Introduction
This is a 27-channel PWM shield that adds 27 independent PWM channels to Arduino or pcDuino.
Caution
There is a jumper labeled P1 on the shield. If the jumper P1 is installed, the Vin of Arduino/pcDuino will be connected to the external power supply Vin+ of the PWM shield. So please remove the jumper P1 when use it on pcDuino, as the Vin of pcDuino cannot exceed 5V.
Specification
- Number of Channels: 27
- Driving frequency: Adjustable, default 50Hz (a period of 20ms)
- Communication Interface: SPI
- Precision: 5us by default driving frequency 50Hz
- Optional External power supply: 6～24V
Schematics
Usage
The PWM channels are labeled on the shield as below:
Resources
- Tutorial
- Source files for the STM32 used on the shield
- PWM module Arduino libraryThe sample Arduino sketch
- Explanation of the PWM shield
How to buy
Here to buy 27-Channel PWM Shield on store
