const { requestI2CAccess } = require("node-web-i2c");
const PCA9685 = require("@chirimen/pca9685");
const { promisify } = require("util");
const sleep = promisify(setTimeout);
main();
async function main() {
const i2cAccess = await requestI2CAccess();
const port = i2cAccess.ports.get(1);
const pca9685 = new PCA9685(port, 0x40);
// servo setting for sg90
// Servo PWM pulse: min=0.0011[sec], max=0.0019[sec] angle=+-60[deg]
await pca9685.init(0.001, 0.002, 30);
for (;;) {
await pca9685.setServo(0, -30);
console.log("-30 deg");
await sleep(1000);
await pca9685.setServo(0, 30);
console.log("30 deg");
await sleep(1000);
}
}