@sdetweil Yeah you’re right, that one might be more difficult. But I do have MMM-ModuleToggleButton working with pinctrl. Here’s the updated node_helper.js file just in case anyone’s interested.
node_helper.js
const NodeHelper = require('node_helper'); // eslint-disable-line import/no-extraneous-dependencies
//const Gpio = require('onoff').Gpio;
const { exec } = require("child_process");
module.exports = NodeHelper.create({
start() {
this.started = false;
},
socketNotificationReceived(notification, payload) {
if (notification === 'TOGGLE_BUTTON_CONFIG' && !this.started) {
const self = this;
this.config = payload;
//const button = new Gpio(this.config.buttonGpioPin, 'in', 'both', { persistentWatch: true, debounceTimeout: this.config.debounceTimeoutInMilliseconds });
//button.watch((err, state) => {
// if (state === 1) {
// self.sendSocketNotification(self.config.notificationName, true);
// }
//});
//this.started = true;
// Set up GPIO as input using pinctrl command
const pin = this.config.buttonGpioPin;
const debounceTimeout = this.config.debounceTimeoutInMilliseconds;
const notificationName = this.config.notificationName;
let lastState = null;
// Function to read the pin state using pinctrl
const checkPinState = () => {
exec(`pinctrl get ${pin}`, (err, stdout, stderr) => {
if (err) {
console.error(`Error reading GPIO state: ${err.message}`);
return;
}
// Parse the pin state from stdout
const state = stdout.includes("hi") ? 1 : 0;
// Handle state change with debounce
if (state !== lastState && state === 1) {
this.sendSocketNotification(notificationName, true);
}
// Update last state
lastState = state;
});
};
// Set up an interval to check the pin state with debounce
setInterval(checkPinState, debounceTimeout || 100); // Defaults to 100ms if debounce is not defined
}
}
});
