66 lines
1.4 KiB
C++
66 lines
1.4 KiB
C++
#include <cstdio>
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#include "pico/stdlib.h"
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#include "inventor.hpp"
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/*
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Shows how to initialise and read the 6 GPIO headers of Inventor 2040 W.
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Press "User" to exit the program.
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*/
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using namespace inventor;
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// The brightness of the LEDs
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constexpr float BRIGHTNESS = 0.4f;
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const char* GPIO_NAMES[] = {"GP0", "GP1", "GP2", "A0", "A1", "A2"};
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// Create a new Inventor2040W
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Inventor2040W board;
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int main() {
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stdio_init_all();
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// Attempt to initialise the board
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if(board.init()) {
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// Set up the GPIOs as inputs
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for(uint i = 0; i < NUM_GPIOS; i++) {
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uint pin = GPIOS[i];
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gpio_set_function(pin, GPIO_FUNC_SIO);
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gpio_set_dir(pin, GPIO_IN);
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gpio_pull_down(pin);
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}
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// Read the GPIOs until the user button is pressed
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while(!board.switch_pressed()) {
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// Read each GPIO in turn and print its value
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for(uint i = 0; i < NUM_GPIOS; i++) {
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bool value = gpio_get(GPIOS[i]);
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printf("%s = %d, ", GPIO_NAMES[i], value);
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// Set the neighbouring LED to a colour based on
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// the input, with Green for high and Blue for low
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if(value)
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board.leds.set_hsv(i, 0.333, 1.0, BRIGHTNESS);
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else
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board.leds.set_hsv(i, 0.666, 1.0, BRIGHTNESS);
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}
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// Print a new line
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printf("\n");
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sleep_ms(0.1);
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}
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// Turn off the LED bars
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board.leds.clear();
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// Sleep a short time so the clear takes effect
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sleep_ms(100);
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}
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} |