kopia lustrzana https://github.com/pimoroni/pimoroni-pico
70 wiersze
1.8 KiB
C++
70 wiersze
1.8 KiB
C++
#include <stdio.h>
|
|
#include <math.h>
|
|
#include <cstdint>
|
|
|
|
#include "pico/stdlib.h"
|
|
|
|
#include "servo2040.hpp"
|
|
|
|
#include "common/pimoroni_common.hpp"
|
|
#include "button.hpp"
|
|
|
|
/*
|
|
A simple balancing game, where you use the MSA301 accelerometer to line up a band with a goal on the strip.
|
|
This can either be done using:
|
|
- Angle mode: Where position on the strip directly matches the accelerometer's angle
|
|
- Velocity mode: Where tilting the accelerometer changes the speed the band moves at
|
|
When the goal position is reached, a new position is randomly selected
|
|
|
|
Press "A" to change the game mode.
|
|
Press "B" to start or stop the game mode.
|
|
Press "Boot" to invert the direction of the accelerometer tilt
|
|
*/
|
|
|
|
using namespace pimoroni;
|
|
using namespace plasma;
|
|
|
|
// Set how many LEDs you have
|
|
const uint N_LEDS = 6;
|
|
|
|
// The speed that the LEDs will start cycling at
|
|
const uint DEFAULT_SPEED = 10;
|
|
|
|
// How many times the LEDs will be updated per second
|
|
const uint UPDATES = 60;
|
|
|
|
// WS28X-style LEDs with a single signal line. AKA NeoPixel
|
|
WS2812 led_bar(N_LEDS, pio0, 0, servo2040::LED_DAT);
|
|
|
|
|
|
Button user_sw(servo2040::USER_SW, Polarity::ACTIVE_LOW, 0);
|
|
|
|
int main() {
|
|
stdio_init_all();
|
|
|
|
led_bar.start(UPDATES);
|
|
|
|
int speed = DEFAULT_SPEED;
|
|
float offset = 0.0f;
|
|
|
|
while(true) {
|
|
bool sw_pressed = user_sw.read();
|
|
|
|
if(sw_pressed) {
|
|
speed = DEFAULT_SPEED;
|
|
}
|
|
speed = std::min((int)255, std::max((int)1, speed));
|
|
|
|
offset += float(speed) / 2000.0f;
|
|
|
|
for(auto i = 0u; i < led_bar.num_leds; ++i) {
|
|
float hue = float(i) / led_bar.num_leds;
|
|
led_bar.set_hsv(i, hue + offset, 1.0f, 0.5f);
|
|
}
|
|
|
|
// Sleep time controls the rate at which the LED buffer is updated
|
|
// but *not* the actual framerate at which the buffer is sent to the LEDs
|
|
sleep_ms(1000 / UPDATES);
|
|
}
|
|
}
|