50 lines
1.7 KiB
C++
50 lines
1.7 KiB
C++
/***************************************************
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This is an example for our Adafruit 16-channel PWM & Servo driver
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GPIO test - this will set a pin high/low
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Pick one up today in the adafruit shop!
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------> http://www.adafruit.com/products/815
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These drivers use I2C to communicate, 2 pins are required to
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interface.
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Adafruit invests time and resources providing this open source code,
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please support Adafruit and open-source hardware by purchasing
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products from Adafruit!
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Written by Limor Fried/Ladyada for Adafruit Industries.
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BSD license, all text above must be included in any redistribution
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****************************************************/
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#include <Wire.h>
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#include <Adafruit_PWMServoDriver.h>
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// called this way, it uses the default address 0x40
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Adafruit_PWMServoDriver pwm = Adafruit_PWMServoDriver();
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// you can also call it with a different address you want
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//Adafruit_PWMServoDriver pwm = Adafruit_PWMServoDriver(0x41);
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// you can also call it with a different address and I2C interface
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//Adafruit_PWMServoDriver pwm = Adafruit_PWMServoDriver(0x40, Wire);
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void setup() {
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Serial.begin(9600);
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Serial.println("GPIO test!");
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pwm.begin();
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pwm.setPWMFreq(1000); // Set to whatever you like, we don't use it in this demo!
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// if you want to really speed stuff up, you can go into 'fast 400khz I2C' mode
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// some i2c devices dont like this so much so if you're sharing the bus, watch
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// out for this!
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Wire.setClock(400000);
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}
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void loop() {
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// Drive each pin in a 'wave'
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for (uint8_t pin=0; pin<16; pin++) {
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pwm.setPWM(pin, 4096, 0); // turns pin fully on
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delay(100);
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pwm.setPWM(pin, 0, 4096); // turns pin fully off
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}
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}
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