SAM 15x15 quick start guide
Published: 29 October 2016
Last updated: 28 September 2018
SAM 15x15
See here the whole article and how to buy. See here for the installation procedure.
Simple example programs
SerialUSB
Printing to the serial monitor.
To see the printed data from the beginning, you'll need to add while(!SerialUSB) inside the setup(). This will ensure the SAMD21 will wait for the Serial port to open before executing the sketch:
#include <Streaming.h> void setup() { SerialUSB.begin(9600); // works also without while(!SerialUSB); // print from the start 0, 1, 2 ... instead of 22, 23, 24 ... } int i; void loop() { SerialUSB << i++ << endl; delay(100); }
digitalWrite
Blink the onboard LED:
void setup() { pinMode(d[9], OUTPUT); } void loop() { static bool b; digitalWrite(d[9], b=!b); // blink onboard led (pin 12) delay(300); }
analogRead
Measure the input voltage on pin11 and print the value to the serial monitor:
void setup() { SerialUSB.begin(9600); // for native USB port } void loop() { SerialUSB.print(analogRead(d[8])); // pin 11 SerialUSB.print("\n"); delay(300); }
analogWrite
Put a PWM voltage on pin 5:
void setup() { } void loop() { analogWrite(d[2], 77); // PWM output 3.3V * 77/255 = 1V on pin 5 }