pimoroni-pico/examples/automation2040w/automation2040w_switches_an...

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C++
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#include <cstdio>
#include "pico/stdlib.h"
#include "automation.hpp"
/*
An example of the user switches and LEDs on Automation 2040 W.
Press "A" and "B" together to exit the program.
*/
using namespace automation;
// How many times to update per second
const uint UPDATES = 10;
// The friendly names to give each user input
const char* SWITCH_NAMES[] = {"SW_A", "SW_B"};
// How much to change a LED's brightess each update
const uint LED_INCREMENT = 2;
// Create a new Automation2040W
Automation2040W board;
int main() {
stdio_init_all();
// Attempt to initialise the board
if(board.init()) {
// Enable the Conn LED
board.conn_led(true); // Full Brightness
float led_brightnesses[] = {0.0f, 0.0f};
// Interact with the switches and LEDs until both are pressed simultaneously
while(!board.switch_pressed(SWITCH_A) || !board.switch_pressed(SWITCH_B)) {
for(uint i = 0; i < NUM_SWITCHES; i++) {
// Change the LED brightness based on switch's state
if(board.switch_pressed(i)) {
printf("%s = Pressed, ", SWITCH_NAMES[i]);
led_brightnesses[i] = MIN(led_brightnesses[i] + LED_INCREMENT, 100.0f);
}
else {
printf("%s = Released, ", SWITCH_NAMES[i]);
led_brightnesses[i] = MAX(led_brightnesses[i] - LED_INCREMENT, 0.0f);
}
// Apply the new brightnesses to the LEDs
board.switch_led(i, led_brightnesses[i]);
}
// Print a new line
printf("\n");
sleep_ms(1000 / UPDATES);
}
// Put the board back into a safe state
board.reset();
}
}