sample1.js

defineVirtualDevice('relayClicker', {
  title: 'Relay Clicker',
  cells: {
    enabled: {
      type: 'switch',
      value: false,
    },
  },
});

defineRule('startClicking', {
  asSoonAs: function () {
    return dev.relayClicker.enabled && dev.uchm121rx['Input 0'] == '0';
  },
  then: function () {
    startTicker('clickTimer', 1000);
  },
});

defineRule('stopClicking', {
  asSoonAs: function () {
    return !dev.relayClicker.enabled || dev.uchm121rx['Input 0'] != '0';
  },
  then: function () {
    timers.clickTimer.stop();
  },
});

defineRule('doClick', {
  when: function () {
    return timers.clickTimer.firing;
  },
  then: function () {
    dev.uchm121rx['Relay 0'] = !dev.uchm121rx['Relay 0'];
  },
});

defineRule('echo', {
  whenChanged: 'wb-w1/00042d40ffff',
  then: function (newValue, devName, cellName) {
    runShellCommand('echo {}/{} = {}'.format(devName, cellName, newValue), {
      captureOutput: true,
      exitCallback: function (exitCode, capturedOutput) {
        log('cmd output: ' + capturedOutput);
      },
    });
  },
});