Turn on/off LED on-board compatible arduino hardware through the commands received H and L from the browser on the laptop which is connected to the hardware.
Use this firmware with the browser code.
#include <WebUSB.h>
// Modified from example https://webusb.github.io/arduino/demos/console
WebUSB WebUSBSerial(1, "webusb.github.io/arduino/demos/console");
const int ledPin = 13;
void setup() {
WebUSBSerial.begin(9600);
while (!Serial) {}
delay(100);
SerialUSB.begin(9600);
delay(1000);
SerialUSB.println("Start!");
WebUSBSerial.write("Sketch begins");
WebUSBSerial.flush();
pinMode(ledPin, OUTPUT);
}
void loop() {
if (WebUSBSerial && WebUSBSerial.available()) {
int byte = WebUSBSerial.read();
if (byte == 'H') {
SerialUSB.println("LED ON");
WebUSBSerial.write("Turning LED on.");
digitalWrite(ledPin, HIGH);
} else if (byte == 'L') {
SerialUSB.println("LED OFF");
WebUSBSerial.write("Turning LED off.");
digitalWrite(ledPin, LOW);
}
WebUSBSerial.flush();
}
}BOARD?=arduino:samd:mzero_bl
PORT := $(shell ls /dev/cu.usbmodem*)
.PHONY: default lint all flash clean
default: lint all flash clean
lint:
cpplint --extensions=ino --filter=-legal/copyright *.ino
all:
arduino-cli compile --fqbn $(BOARD) ./
flash:
arduino-cli upload -p $(PORT) --fqbn $(BOARD) ./
clean:
rm -f .*.bin
rm -f .*.elf
rm -f .*.hex