pimoroni-pico/examples/motor2040/motor2040_velocity_control.cpp

76 wiersze
1.5 KiB
C++

#include "pico/stdlib.h"
#include "motor2040.hpp"
/*
An example of how to drive a motor smoothly between random speeds,
with the help of it's attached encoder and PID control.
Press "Boot" to exit the program.
*/
using namespace motor;
// How many sweeps of the motor to perform
const uint SWEEPS = 3;
// The number of discrete sweep steps
const uint STEPS = 10;
// The time in milliseconds between each step of the sequence
const uint STEPS_INTERVAL_MS = 500;
// How far from zero to move the motor when sweeping
constexpr float SWEEP_EXTENT = 90.0f;
// Create a motor on pin 0 and 1
Motor m = Motor(motor2040::MOTOR_A);
int main() {
stdio_init_all();
// Initialise the motor
m.init();
// Enable the motor
m.enable();
sleep_ms(2000);
// Go at full neative
m.full_negative();
sleep_ms(2000);
// Go at full positive
m.full_positive();
sleep_ms(2000);
// Stop the motor
m.stop();
sleep_ms(2000);
// Do a sine sweep
for(auto j = 0u; j < SWEEPS; j++) {
for(auto i = 0u; i < 360; i++) {
m.speed(sin(((float)i * (float)M_PI) / 180.0f) * SWEEP_EXTENT);
sleep_ms(20);
}
}
// Do a stepped sweep
for(auto j = 0u; j < SWEEPS; j++) {
for(auto i = 0u; i < STEPS; i++) {
m.to_percent(i, 0, STEPS, 0.0 - SWEEP_EXTENT, SWEEP_EXTENT);
sleep_ms(STEPS_INTERVAL_MS);
}
for(auto i = 0u; i < STEPS; i++) {
m.to_percent(i, STEPS, 0, 0.0 - SWEEP_EXTENT, SWEEP_EXTENT);
sleep_ms(STEPS_INTERVAL_MS);
}
}
// Disable the motor
m.disable();
}