Move timeout to a promise
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parent
32893467bb
commit
7afc662ba7
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@ -1,20 +1,49 @@
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const { exec } = require('child_process');
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const pins = [
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{ key: 'igniter', board: 13, bcm: 27, mode: 'OUT' },
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{ key: 'exhaust', board: 15, bcm: 22, mode: 'OUT' },
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{ key: 'auger', board: 7, bcm: 4, mode: 'OUT' },
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{ key: 'pof', board: 16, bcm: 23, mode: 'IN' },
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{ key: 'vacuum', board: 22, bcm: 25, mode: 'IN' }
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{
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key: 'igniter',
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board: 13,
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bcm: 27,
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mode: 'OUT',
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defaultState: 0
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},
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{
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key: 'exhaust',
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board: 15,
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bcm: 22,
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mode: 'OUT',
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defaultState: 1
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},
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{
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key: 'auger',
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board: 7,
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bcm: 4,
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mode: 'OUT',
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defaultState: 0
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},
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{
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key: 'pof',
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board: 16,
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bcm: 23,
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mode: 'IN'
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},
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{
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key: 'vacuum',
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board: 22,
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bcm: 25,
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mode: 'IN' }
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];
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const sleep = ms => new Promise(resolve => setTimeout(resolve, ms));
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pins.forEach(pin => {
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console.log(`Key: ${pin.key}, Board: ${pin.board}, BCM: ${pin.bcm}, Mode: ${pin.mode}`);
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});
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module.exports = {
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// Function to toggle a pin on-then-off
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// Calls the GPIO Interface script to toggle a pin's state opposite of its current state
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togglePin(pin, callback) {
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exec(`python3 src/python/gpio_interface.py toggle ${pin}`, (error, stdout, stderr) => {
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if (error) {
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@ -23,26 +52,39 @@ module.exports = {
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if (stderr) {
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return callback(new Error(stderr));
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}
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console.log(`Successfully toggled pin ${pin}`);
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});
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},
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// Function to sense a pin state
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sensePin(pin, callback) {
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exec(`python3 src/python/gpio_interface.py sense ${pin}`, (error, stdout, stderr) => {
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// Calls the GPIO Interface script to read a pin's state
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readPin(pin, callback) {
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exec(`python3 src/python/gpio_interface.py read ${pin}`, (error, stdout, stderr) => {
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if (error) return callback(error);
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if (stderr) return callback(new Error(stderr));
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callback(null, stdout.trim());
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});
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},
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// Calls the GPIO Interface script to set a pin's state regardless of its current state
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setPin(pin, state, callback) {
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exec(`python 3 src/python/gpio_interface.py set ${pin} ${state}`, (error, stdout, stderr) => {
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if (error) {
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console.error(`Error sensing pin ${pin}: ${error.message}`);
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return callback(error);
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}
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if (stderr) {
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console.error(`Stderr while sensing pin ${pin}: ${stderr}`);
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return callback(new Error(stderr));
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}
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console.log(`Pin ${pin} state: ${stdout.trim()}`);
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callback(stdout.trim(), null);
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});
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callback(null);
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})
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},
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// Toggle pins sequentially and then sense pin states
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// Boot up sanity check during debug mode
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debugInit() {
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console.log('Resetting all output pins.');
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pins.forEach(async (pin) => {
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if (pin.mode === 'OUT') {
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this.setPin(pin.board, pin.defaultState, err => {
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if (err) throw err;
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console.log(`Set ${pin.key} pin to ${pin.defaultState}.`);
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});
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};
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});
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pins.forEach(async (pin) => {
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switch (pin.mode) {
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case 'OUT':
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@ -50,14 +92,13 @@ module.exports = {
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if (err) throw err;
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});
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// Wait 1000ms before toggling again.
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await setTimeout(() => {
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this.togglePin(pin.board, err => {
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if (err) throw err;
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});
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}, 1000);
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await sleep(1000);
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this.togglePin(pin.board, err => {
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if (err) throw err;
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});
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break;
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case 'IN':
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this.sensePin(pin.board, (state, err) => {
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this.readPin(pin.board, (err, state) => {
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if (err) throw err;
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console.log(`${pin.key} state: ${state}`);
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});
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@ -1,6 +1,5 @@
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import RPi.GPIO as GPIO
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import sys
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import time
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# Initialize GPIO using Board mode for pin numbering
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GPIO.setmode(GPIO.BOARD)
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@ -27,22 +26,35 @@ def toggle_pin(pin):
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# Exit with 1 for failure
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return 1
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def sense_pin(pin):
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def read_pin(pin):
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setup_pin(pin, 'IN')
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try:
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# Sense pin state
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# Read pin state
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state = GPIO.input(pin)
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# Return 1 if pin is HIGH, 0 if LOW
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return 1 if state == GPIO.HIGH else 0
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except Exception as e:
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# Handle errors
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print(f"Error sensing pin {pin}: {e}")
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print(f"Error reading pin {pin}: {e}")
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# Return -1 on error
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return -1
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def set_pin_state(pin, state):
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setup_pin(pin, 'OUT')
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try:
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# Set the pin state to either HIGH (1) or LOW (0)
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GPIO.output(pin, GPIO.HIGH if state == 1 else GPIO.LOW)
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# Exit with 0 for success
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return 0
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except Exception as e:
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# Handle errors
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print(f"Error setting pin {pin} to state {state}: {e}")
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# Exit with 1 for failure
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return 1
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def main():
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if len(sys.argv) < 2:
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print("Usage: python3 gpio_interface.py <command> <pin>")
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if len(sys.argv) < 3:
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print("Usage: python3 gpio_interface.py <command> <pin> [<state>]")
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sys.exit(1)
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command = sys.argv[1].lower()
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@ -51,12 +63,22 @@ def main():
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if command == "toggle":
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result = toggle_pin(pin)
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sys.exit(result)
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elif command == "sense":
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result = sense_pin(pin)
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elif command == "read":
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result = read_pin(pin)
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print(result)
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sys.exit(0 if result >= 0 else 1)
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elif command == "set":
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if len(sys.argv) < 4:
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print("Usage: python3 gpio_interface.py set <pin> <state>")
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sys.exit(1)
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state = int(sys.argv[3])
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if state not in [0, 1]:
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print("Invalid state. Use 0 for LOW or 1 for HIGH.")
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sys.exit(1)
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result = set_pin_state(pin, state)
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sys.exit(result)
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else:
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print("Invalid command. Use 'toggle' or 'sense'.")
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print("Invalid command. Use 'toggle', 'read', or 'set'.")
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sys.exit(1)
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if __name__ == "__main__":
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