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74 lines
1.7 KiB
JavaScript
74 lines
1.7 KiB
JavaScript
const express = require('express');
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const cors = require('cors');
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const app = express();
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const child_process =require('child_process');
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app.use(cors());
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app.use(express.json());
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const port = 8080;
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app.listen(port, () => {
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console.log(`Server is running at http://localhost:${port}`);
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});
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// Set the pins 5,6,13,19 as output
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child_process.exec('pinctrl set 5 op');
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child_process.exec('pinctrl set 6 op');
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child_process.exec('pinctrl set 13 op');
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child_process.exec('pinctrl set 19 op');
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child_process.exec('pinctrl set 19 pn dh');
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app.use('/on/:gpio', function (req, res) {
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const gpio = req.params.gpio;
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const command = `pinctrl set ${gpio} pn dh`;
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child_process.exec(command, function (error, stdout, stderr) {
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if (error) {
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console.log(error);
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return res.status(500).send('Error');
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} else {
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console.log('LED ON', gpio);
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return res.status(200).send('LED ON');
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}
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});
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});
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app.use('/off/:gpio', function (req, res) {
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const gpio = req.params.gpio;
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const command = `pinctrl set ${gpio} dl`;
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child_process.exec(command, function (error, stdout, stderr) {
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if (error) {
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console.log(error);
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return res.status(500).send('Error');
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} else {
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console.log('LED OFF', gpio);
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return res.status(200).send('LED OFF');
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}
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});
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});
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app.use('/status/:gpio', function (req, res) {
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const gpio = req.params.gpio;
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const command = `pinctrl get ${gpio}`;
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const regex = new RegExp(/.*\| (..) \/.*/);
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child_process.exec(command, function (error, stdout, stderr) {
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if (error) {
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console.log(error);
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return res.status(500).send('Error');
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} else {
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const status = regex.exec(stdout)[1];
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console.log(stdout);
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return res.status(200).send(status);
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}
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});
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});
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