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39 lines
994 B
39 lines
994 B
2 months ago
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import { SerialPort } from 'serialport'
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const serialport = new SerialPort({ path: 'COM3', baudRate: 9600, autoOpen: false, }, function (err) {
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if (err) {
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return console.log('Error: ', err.message);
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}
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})
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async function serialPort(req, res) {
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const buff = Buffer.allocUnsafe(4);
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buff.writeUInt8(`#0${req.params.id}$`);
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const result = await serialport.write(buff)
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res.send(result)
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// serialport.open(function (err) {
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// if (err) {
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// return console.log('Error opening port: ', err.message);
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// }
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// // Because there's no callback to write, write errors will be emitted on the port:
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// serialport.write('main screen turn on');
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// })
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// serialport.on('error', function (err) {
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// console.log('Error: ', err.message);
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// })
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// serialport.on('readable', function () {
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// console.log('Data:', serialport.read());
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// })
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// serialport.on('data', function (data) {
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// console.log('Data:', data);
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// })
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}
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export default serialPort
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