user154849

Most recent activity

• Struggle with button press with react-native-ble-plx

  @user154849 started

  • 2 comments
  • 291 views

  @Gordon replied
• Struggle with button press with react-native-ble-plx

  in Puck.js, Pixl.js and MDBT42 • 1 year, 8 months

  

  Hi, im kinda struggling again using react-native-ble-plx

  I try to recognize when the button was pressed, i tried different things, my last approach was to add a characteristic and monitor this in my react native application, but the characteristic just wont show up, any ideas?

  NRF.setServices({
    '6e400001-b5a3-f393-e0a9-e50e24dcca9e': {
      '6e400004-b5a3-f393-e0a9-e50e24dcca9e': {
        value: 1,
        writable: false,
        notify: true,
        description: 'Button Characteristic',
        onSubscribe: function() {
          setWatch(function() {
            NRF.updateServices({
             '6e400001-b5a3-f393-e0a9-e50e24dcca9e': {
               '6e400004-b5a3-f393-e0a9-e50e24dcca9e': {
                  value: 1,
                  notify: true
                }
              }
            });
          }, BTN, {repeat: true, edge: 'rising', debounce: 50});
        }
      }
    }
  });
  

• Struggling with react native and puck js

  @user154849 started

  • 3 comments
  • 626 views

  @user154849 replied
• Struggling with react native and puck js

  in Puck.js, Pixl.js and MDBT42 • 1 year, 8 months

  

  Hi, thanks, now it works :)

  Here is the working code :)
  I fixed the uuid part and also the command was wrong :)

    return new Promise<string>((resolve, reject) => {
              return Ble.startDeviceScan(null, null, async (error, device) => {
                  if (error) {
                      console.log(error.message);
                      if (typeof error.message === 'string') {
                          //show error
                      }
                      reject(false);
                      return;
                  }
  
                  console.log(device?.name);
  
                  if (device?.name?.trim().startsWith('Puck.js')) {
                      try {
                          if (device) {
                              Ble.stopDeviceScan();
  
                              const discoverAndWrite = async () => {
                                  await device.discoverAllServicesAndCharacteristics();
                                  const result2 = await device.services();
                                  result2.forEach(async (service) => {
                                      const charList = await service.characteristics();
                                      charList.forEach(async (characteristic) => {
                                          if (characteristic.uuid === '6e400002-b5a3-f393-e0a9-e50e24dcca9e') {
                                              const data = Buffer.from('LED.toggle();\n').toString('base64');
                                              characteristic
                                                  .writeWithResponse(data)
                                                  .then((val) => console.log('value', val))
                                                  .catch((reason) => console.log('reason', reason));
                                          }
                                          if (characteristic.uuid === '6e400003-b5a3-f393-e0a9-e50e24dcca9e') {
                                              characteristic.monitor((error, newCharacteristic) => {
                                                  console.log('monitor', error, newCharacteristic);
                                              });
                                          }
                                      });
                                  });
                              };
  
                              const connected = await device.isConnected();
  
                              if (!connected) {
                                  await device.connect();
                              }
  
                              await discoverAndWrite();
  
                              resolve(device.id);
                          }
                      } catch (err: any) {
                          console.log('errMessage', err);
                          if (typeof err.message === 'string') {
                              // show error
                          }
  
                          reject(err.message);
                      }
                  }
              });
          });
  

• Struggling with react native and puck js

  in Puck.js, Pixl.js and MDBT42 • 1 year, 8 months

  

  Hi :)

  Im working on integrating the Puck.js into my react native application using react-native-ble-plx
  Everything is working fine, but when i try to write some data, i just get this message

  [BleError: Characteristic 6e400002-b5a3-f393-e0a9-e50e24dcca9e notify change failed for device 1E986C85-8037-E56E-A18D-0F38826AAB12 and service 6e400001-b5a3-f393-e0a9-e50e24dcca9e]

  Thats my code :)

  return new Promise<string>((resolve, reject) => {
              return Ble.startDeviceScan(null, null, async (error, device) => {
                  if (error) {
                      console.log(error.message);
                      if (typeof error.message === 'string') {
                          //show error
                      }
                      reject(false);
                      return;
                  }
  
                  console.log(device?.name);
  
                  if (device?.name?.trim().startsWith('Puck.js')) {
                      try {
                          if (device) {
                              Ble.stopDeviceScan();
                              const connected = await device.isConnected();
  
                              if (!connected) {
                                  await device.connect();
                                  await device.discoverAllServicesAndCharacteristics();
                                  const result2 = await device.services();
                                  result2.forEach(async (service) => {
                                      const charLit = await service.characteristics();
                                      charLit.forEach(async (chari) => {
                                          console.log('carhi', chari);
                                          if (chari.uuid === '6e400002-b5a3-f393-e0a9-e50e24dcca9e') {
                                              chari.monitor((error, char) => {
                                                  console.log('monitor,', error, char !== undefined);
                                              });
  
                                              const data = Buffer.from(['LED1.set();/n']).toString('base64');
                                              chari
                                                  .writeWithResponse(data)
                                                  .then((val) => console.log('val', val))
                                                  .catch((reason) => console.log('reson', reason));
                                          }
                                      });
                                  });
                              }
  
                              resolve(device.id);
                          }
                      } catch (err: any) {
                          console.log('errMessage', err);
                          if (typeof err.message === 'string') {
                              // show error
                          }
  
                          reject(err.message);
                      }
                  }
              });
          });
  

  I would be greatful for any help :)