1var uart = require('uart');
2
3var msgbuf = 'this is amp uart test'
4// led灯
5var serial = uart.open({
6  id: 'serial',
7  success: function() {
8    console.log('open spi success')
9  },
10  fail: function() {
11    console.log('open spi failed')
12  }
13});
14
15serial.write(msgbuf)
16var value = serial.read()
17
18console.log('sensor value is ' + value)
19
20serial.on('data', function(len, data) {
21  console.log('uart receive data len is : ' + len + '  data is:  ' + data);
22})
23
24serial.close();