Grove – MOSFET User Manual Release date： 2015/9/22 Version： 1.0 Wiki: http://www.seeedstudio.com/wiki/Grove_-_MOSFET Bazaar:http://www.seeedstudio.com/depot/Grove-MOSFET-p1594.
Document Revision History Revision Date Author Description 1.0 Sep 22, 2015 Jiankai.
Contents Document Revision History ·········································································2 1. Introduction ·······················································································2 2. Specification ······················································································3 3. Interface ···························································································4 4.
Disclaimer For physical injuries and possessions loss caused by those reasons which are not related to product quality, such as operating without following manual guide, natural disasters or force majeure, we take no responsibility for that. Under the supervision of Seeed Technology Inc., this manual has been compiled and published which covered the latest product description and specification. The content of this manual is subject to change without notice.
1. Introduction Grove – MOSFET enables you to control higher voltage project, say 15VDC, with low voltage, say 5V, on microcontroller. MOSFET is also a kind of switch, but its switching frequency can reach up to 5MHz, much faster than normal mechanical relay. There are two screw terminals on the board. One for outer power source and the other for device you want to control. Grove – MOSFET will pass the power from one end to another when closed.
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3. Interface Vin: accepts 5V ~ 15V power of which current is less than 2A. Vout: attach actuators here.
4. Demonstration With Arduino Here we demonstrates how to use Grove - MOSFET to control a motor. We provide power for it with external power source, but if your controlled device needs current smaller than 300mA, Seeeduino can totally support it and no extra power source needed. // demo of Grove - MOSFET // use pin 6 to control a motor int motorPin = 6; void setup() { Serial.begin(38400); pinMode(motorPin, OUTPUT); Serial.
int onSpeed = 200; int onTime // a number between 0 (stopped) and 255 (full speed) = 2500; int offSpeed = 50; // a number between 0 (stopped) and 255 (full speed) int offTime = 1000; analogWrite(motorPin, onSpeed); delay(onTime); analogWrite(motorPin, offSpeed); delay(offTime); } void motorAcceleration() { int delayTime = 50; for(int i=0; i<256; i++) { analogWrite(motorPin, i); delay(delayTime); } for(int i=255; i>=0; i--) { analogWrite(motorPin, i); delay(delayTime); } } With Raspberry Pi 1.
# Connect the Grove MOSFET to analog port D6 # SIG,NC,VCC,GND mosfet = 6 grovepi.pinMode(mosfet,"OUTPUT") time.sleep(1) while True: try: # Full speed grovepi.analogWrite(mosfet,255) print "full speed" time.sleep(2) # Half speed grovepi.analogWrite(mosfet,128) print "half speed" time.sleep(2) # Off grovepi.analogWrite(mosfet,0) print "off" time.sleep(2) except KeyboardInterrupt: grovepi.analogWrite(mosfet,0) break except IOError: print "Error" 5. Run the demo. sudo python grove_mosfet.
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