Search results for:

I will probably try to sniff traffic but I need to order this DK before trying.

I just added NRF.on('disconnect', function(reason) { print("Disconnected",reason);});
and guess what? never called... However the gatt.connectedis set tofalse after having called SendCommandToActuator...

Here it is:
Please note DevName,serviceUUID,characteristicUUID and MessageToSend have been replaced in the code below because of confidentiallity agreement.

var devices;
var gatt;
var DevName="MyActuator";

var serviceUUID="2fc3af42-7a4a-1431-d1f1-fs5­51e3bf022";
var characteristicUUID="32160fb9-5337-4e71-b­0f8-ff412e3ae078";
var MessageToSend=[0x00,0x01,0x03];


function scan(){
  NRF.findDevices(function(d) {
    devices = d;
    console.log(devices);
  }, 5000);
}

function SendCommandToActuator() {
  NRF.requestDevice({ filters: [{ name: DevName }] }).then(function(device) {
    return device.gatt.connect();
  }).then(function(g) {
    gatt = g;
    console.log(gatt);
    return gatt.getPrimaryService(serviceUUID);
  }).then(function(service) {
    return service.getCharacteristic(characteristic­UUID);
  }).then(function(characteristic) {
    return characteristic.writeValue(MessageToSend)­;
  }).then(function() {
    gatt.disconnect();
    console.log("Done!");
  });
}

function Bond(){
  NRF.requestDevice({ filters: [{ name: DevName }] }).then(function(device) {
    console.log("found device");
    return device.gatt.connect();
  }).then(function(g) {
    gatt = g;
    console.log("connected");
    return gatt.startBonding();
  }).then(function() {
    console.log("bonded", gatt.getSecurityStatus());
    gatt.disconnect();
  }).catch(function(e) {
    console.log("ERROR",e);
  });
}

When I load this script and I call SendCommandToActuator(), I get this log:

	
>
 _____                 _
|   __|___ ___ ___ _ _|_|___ ___
|   __|_ -| . |  _| | | |   | . |
|_____|___|  _|_| |___|_|_|_|___|
          |_| http://espruino.com
 1v94 Copyright 2016 G.Williams
>
=undefined
>SendCommandToActuator()
=undefined
BluetoothRemoteGATTServer {
  "device": BluetoothDevice {
    "id": "96:05:05:f7:ac:1c random",
    "rssi": -61,
    "services": [  ],
    "data": new Uint8Array([2, 1, 4, 12, 9, 79, 75, 73, 78, 45, 54, 50, 54, 48, 49, 57]).buffer,
    "name": "MyActuator",
    "gatt":  ...
   },
  "connected": true }
Uncaught Error: Unhandled promise rejection: Disconnected

Yes I am able to connect to the actuator with my phone, using NRFConnect. I don't know about security. At least, my phone did not need anything else before interracting with the actuator

No it doesn't say timeout anywhere, it is just a potential cause that I suspected.
The peripheral is an actuator. Basically I have to send 3 bytes to a specific characteristic in order to control the actuator.
I try to bond it with this method

function Bond(){
  NRF.requestDevice({ filters: [{ name: Devname }] }).then(function(device) {
    console.log("found device");
    return device.gatt.connect();
  }).then(function(g) {
    gatt = g;
    console.log("connected");
    return gatt.startBonding();
  }).then(function() {
    console.log("bonded", gatt.getSecurityStatus());
    gatt.disconnect();
  }).catch(function(e) {
    console.log("ERROR",e);
  });
}

This process seems to be OK. It returns

bonded { "connected": true, "encrypted": false, "mitm_protected": false, "bonded": true }

Then I try to write to the specific characteristic of the specific service and again, I got error messages like following:

BluetoothRemoteGATTServer {
  "device": BluetoothDevice {
    "id": "96:05:05:f7:ac:1c random",
    "gatt":  ...
   },
  "connected": true }
Uncaught Error: Unhandled promise rejection: Disconnected

I don't have any other BTLE device here to test. Even my phone doesn't seem to accept being a GATT server with NRFConnect....

Hi!
I am playing with GATT with Puck.js being a central device :

var serviceUUID="2fc3af42-7a4a-1431-d1f1-fs5­51e3bf022";
var characteristicUUID="32160fb9-5337-4e71-b­0f8-ff412e3ae078";
var MessageToSend=[0x00,0x01,0x03];

NRF.requestDevice({ filters: [{ name: Devname }] }).then(function(device) {
      return device.gatt.connect();
    }).then(function(g) {
      gatt = g;
      console.log(gatt);
      console.log(gatt);
      console.log(gatt);
      console.log(gatt);
      return gatt.getPrimaryService(serviceUUID);
    }).then(function(service) {
      return service.getCharacteristic(characteristic­UUID);
    }).then(function(characteristic) {
      return characteristic.writeValue(MessageToSend)­;
    }).then(function() {
      gatt.disconnect();
      console.log("Done!");
    });

and in the console I get :

=undefined
BluetoothRemoteGATTServer {
  "device": BluetoothDevice {
    "id": "96:05:05:f7:ac:1c random",
    "rssi": -57,
    "data": new Uint8Array([2, 1, 26, 10, 255, 76, 0, 16, 5, 1, 16, 139, 101, 67]).buffer,
    "name": "AABBCCDD",
    "gatt":  ...
   },
  "connected": true }
BluetoothRemoteGATTServer {
  "device": BluetoothDevice {
    "id": "96:05:05:f7:ac:1c random",
    "rssi": -57,
    "data": new Uint8Array([2, 1, 26, 10, 255, 76, 0, 16, 5, 1, 16, 139, 101, 67]).buffer,
    "name": "AABBCCDD",
    "gatt":  ...
   },
  "connected": true }
BluetoothRemoteGATTServer {
  "device": BluetoothDevice {
    "id": "96:05:05:f7:ac:1c random",
    "rssi": -57,
    "data": new Uint8Array([2, 1, 26, 10, 255, 76, 0, 16, 5, 1, 16, 139, 101, 67]).buffer,
    "name": "AABBCCDD",
    "gatt":  ...
   },
  "connected": false }
BluetoothRemoteGATTServer {
  "device": BluetoothDevice {
    "id": "96:05:05:f7:ac:1c random",
    "rssi": -57,
    "data": new Uint8Array([2, 1, 26, 10, 255, 76, 0, 16, 5, 1, 16, 139, 101, 67]).buffer,
    "name": "AABBCCDD",
    "gatt":  ...
   },
  "connected": false }
Uncaught Error: Unhandled promise rejection: Not connected
> 

having a look at the BluetoothRemoteGATTServer .connected state, is shows true, true,false,false. Why such a behaviour? is there really a timeout anywhere?

OK I tried with another peripheral device and it works. I restarted my BTLE actuator and it works . looks like I made a wrong operation on it...

BTW, can I expect from the Puck.js to stay connected to the IDE even when connected to a peripheral device? In other terms, can the Puck.js be at the same time a peripheral AND a central device?

Another try with bonding code removed caused the puck.js to disconnect from the IDE again.

first attempt: upgrade to 1v94 then reload same code. Result: same

second attempt: remove the bonding part in code:

    var gatt;
    NRF.requestDevice({ filters: [{ name: 'My BT actuator name' }] }).then(function(device) {
      console.log("found device");
      return device.gatt.connect();
    }).then(function(g) {
      gatt = g;
      gatt.disconnect();
    }).catch(function(e) {
      console.log("ERROR",e);
    });

And log:

 _____                 _
|   __|___ ___ ___ _ _|_|___ ___
|   __|_ -| . |  _| | | |   | . |
|_____|___|  _|_| |___|_|_|_|___|
          |_| http://espruino.com
 1v94 Copyright 2017 G.Williams
Espruino is Open Source. Our work is supported
only by sales of official boards and donations:
http://espruino.com/Donate
>
=undefined
found device
ERROR Connection Timeout
>

Hi there,

I am trying to use the Puck.js as a central device, connecting to a peripheral device (BTLE actuator).
I suppose that the procedure is as following:

1. NRF.requestDevice() with either name or id of the peripheral device already known and used as filter
   
2. connect the gatt
   
3. bond with .startBonding
   
   

Whenever my Puck.js executes the gatt.connect(), I have 2 problems appearing: First one is that the Puck.js disconnects from the IDE, and second one is that connection fails with error "ERROR Connection Timeout".

I tried to execute the code found here http://www.espruino.com/Reference#l_Blue­toothRemoteGATTServer_startBonding

var gatt;
NRF.requestDevice({ filters: [{ name: 'My BT actuator name' }] }).then(function(device) {
  console.log("found device");
  return device.gatt.connect();
}).then(function(g) {
  gatt = g;
  console.log("connected");
  return gatt.startBonding();
}).then(function() {
  console.log("bonded", gatt.getSecurityStatus());
  gatt.disconnect();
}).catch(function(e) {
  console.log("ERROR",e);
});

First step of requesting the device seems to be OK as I can read found devicein the console when the puck.js doesn't disconnect from the IDE.

 _____                 _
|   __|___ ___ ___ _ _|_|___ ___
|   __|_ -| . |  _| | | |   | . |
|_____|___|  _|_| |___|_|_|_|___|
          |_| http://espruino.com
 1v92 Copyright 2016 G.Williams
Espruino is Open Source. Our work is supported
only by sales of official boards and donations:
http://espruino.com/Donate
>
=undefined
found device
ERROR Connection Timeout
>

Any idea on what goes wrong?

Hi guys,

I am planning to interface my Pico with a 20x4 character OLED display OLED-020N004B from Vishay (info here: https://www.vishay.com/displays/list/pro­duct-37706/). It seems to behave like a HD44780-like display: the built-in controller is a "OLED-0010", doc here: http://docs-europe.electrocomponents.com­/webdocs/1401/0900766b814011cc.pdf

This controller has the ability to interract with 6800, 8080 and SPI interface. SPI seems to be mapped on DB7(MOSI), DB6(MISO), DB5(SCK) and E(CS).
I had a look at the HD44780 module (http://www.espruino.com/modules/HD44780.­js); it does not seem to support SPI mode right now.

Does anyone have any idea of how I could add a .connectSPI method on this module?

as well as maybe the allocation of variables a and b, maybe you could try to allocate them globally

Could you share your current code?

You could probably start playing with this module http://www.espruino.com/ST7565. If not working out of the box, it should not be too difficult to make it compatible with ST7735 chip.

In case you need help , this is a ST7735 driver from Adafruit : https://github.com/adafruit/Adafruit-ST7­735-Library

Computer or smartphone ;-)

Could you tell us what is the Olimex reference ? or give us the link to the schematic?

Tab complete now works for Pins

Cooool! (1)

STM32: Fix occasional RTC jumps (wrong month when setting RTC)

Cooool! (2)

getting closer and closer to release 2.0 !!:-)

I experienced many wifi connection problems with the wifi AP at home. At work, no problem. I suspect that ESP8266 may have problems connecting to certain channels or AP.
A friend of mine got exactly the same problem with its home wifi AP. We both worked with ESP01. Maybe there is a new silicon revision now?
ps: a colleague told me that this problem could potentially be seen if the quartz oscillator of the chip is slightly de-rated. A little temperature increase and the center frequency of the module is misaligned with wifi channels. I did not verify this assumption but this seems to make sense in some ways.

Same opinion... Arduino form-factor is not very convenient... Of course there is a lot of shield out there but as soon as you plug 1 or 2 shields, you just get a big cube of PCBs and that's it. A small form factor allows for an easy integration.
The global trend right now seems to be IoT, wearables, smart things and so on. IMO the need for those trends is small battery powered connected devices. Puck.js is very well suited for wearables. However BLE is not yet suffciently established to allow people doing smart-home projects with BLE. Here comes the Espruino-Wifi.
What about outdoor projects? Is there any possibility to follow the idea of the Particle Electron for the next Espruino board?

Just tried this code with Win7. LED is OK but no keyboard input at all.
It seems that the Pico remains enumerated as a virtual COM port only

As far as I know the SIM800/900 family can only be powered on and off with the PWRKEY pin.

You should be able to use USART1 on D28and D29 (see pinout )

Then most of the effort is already done for SIM900 and SIM800.

OK the problem was the device flashing process, not the BLE adapter itself. For a reason, the J-Flash Lite tool did not flash the NRF52 the first time.
After some tests, both my CSR and Broadcom based BLE dongles are working fine :-)

The Nordic 'Thingy' has been renamed jpthingy.
Yes I flashed the espruino_1v92.111_nrf52832.hex firmware via a J-LINK debugger, but I wonder if I should have flashed the ZIP archive instead of the .hexonly... ?!?

Hi guys.
I have a case where my device is visible but I do not have any web bluetooth button appearing in the Native IDE. Here is the console output:

We have chrome.serial - not using 'serialport' module
'winnus' module not found, no Windows Bluetooth Low Energy Error: The specified module could not be found. \\?\C:\Program Files\EspruinoIDE\node_modules\winnus\bu­ild\Release\winnus.node
serial_audio: Audio Sample rate : 44100
serial_audio: Audio Serial Baud 9600 Bit time 4.59375
Web Bluetooth available, but Windows Web Bluetooth is broken in <=56 - not using it
GET chrome.storage.sync = {"AUTO_SAVE_CODE":true,"BAUD_RATE":"9600­","BLOCKLY_EXTENSIONS":"|bluetooth|robot­|","BLOCKLY_LANGUAGE":"en","BLOCKLY_TO_J­S":false,"BLUETOOTH_LOW_ENERGY":true,"BO­ARD_JSON_URL":"http://www.espruino.com/j­son","CODE":"console.log(\"Hello\");","C­OMPILATION":true,"COMPILATION_URL":"http­://www.espruino.com:32766","ENABLE_Testi­ng":false,"ENV_ON_CONNECT":true,"FONT_SI­ZE":12,"MINIFICATION_DeadCode":true,"MIN­IFICATION_LEVEL":"","MINIFICATION_Litera­l":true,"MINIFICATION_Mangle":true,"MINI­FICATION_Unreachable":true,"MINIFICATION­_Unused":true,"MODULE_AS_FUNCTION":false­,"MODULE_EXTENSIONS":".min.js|.js","MODU­LE_MINIFICATION_LEVEL":"ESPRIMA","MODULE­_URL":"http://www.espruino.com/modules",­"NPM_MODULES":false,"RESET_BEFORE_SEND":­true,"SAVE_ON_SEND":0,"SERIAL_AUDIO":"0"­,"SERIAL_TCPIP":"","SERIAL_THROTTLE_SEND­":false,"SET_TIME_ON_WRITE":false,"SHOW_­CODE_LINK_ICON":false,"SHOW_RELOAD_ICON"­:false,"SHOW_WEBCAM_ICON":0,"STORE_LINE_­NUMBERS":true,"Sound_Error":"","Sound_In­fo":"","Sound_Success":"","Sound_Warning­":"","Speak_Error":false,"Speak_Info":fa­lse,"Speak_Success":false,"Speak_Warning­":false,"UI_MODE":"Normal","WEB_BLUETOOT­H":false}
Initialising SettingsConsole
Initialising Utils
Initialising Config
Initialising Notifications
Initialising Status
Initialising App
Initialising File
Initialising Code
Initialising Serial
  - Initialising Serial Chrome Serial
  - Initialising Serial Chrome Socket
  - Initialising Serial Noble
  - Initialising Serial Audio
Initialising Terminal
Initialising CodeWriter
Initialising Modules
Initialising Env
Initialising Flasher
Initialising EditorBlockly
Initialising EditorJavaScript
Initialising Send
Initialising MenuPortSelector
Initialising MenuSettings
Initialising MenuFlasher
Initialising SettingsAbout
Initialising SettingsFlasher
Initialising BoardJSON
Initialising VersionChecker
Initialising Compiler
Initialising Assembler
Initialising GetGitHub
Initialising NPMModules
Initialising ExamplePlugin
Initialising Unicode
Initialising SaveOnSend
Initialising Minify
Initialising Tutorial
Initialising Webcam
Initialising FontSize
Initialising UiMode
Initialising URLHandler
Initialising CodeLink
Initialising Project
Initialising Testing
Initialising Notification_Sound
Initialising Tern
Initialising Debugger
Initialising Tour
Initialising SettingsProfile
Initialising HelpLinks
Loaded code from storage.
noble starting scan
Found device: jpthingy f8:1a:18:1b:ba:f5
Found device: jpthingy f8:1a:18:1b:ba:f5
Found device:  f8:1a:18:1b:ba:f7
Found device: jpthingy f8:1a:18:1b:ba:f5
Found device: jpthingy f8:1a:18:1b:ba:f5
Found device:  f8:1a:18:1b:ba:f7
Found device: jpthingy f8:1a:18:1b:ba:f5
Found device:  f8:1a:18:1b:ba:f7
Found device: jpthingy f8:1a:18:1b:ba:f5
Found device:  f8:1a:18:1b:ba:f7
Found device: jpthingy f8:1a:18:1b:ba:f5
Found device: jpthingy f8:1a:18:1b:ba:f5
Found device:  f8:1a:18:1b:ba:f7
Found device: jpthingy f8:1a:18:1b:ba:f5
Found device: jpthingy f8:1a:18:1b:ba:f5
Found device:  f8:1a:18:1b:ba:f7
Found device: jpthingy f8:1a:18:1b:ba:f5
Found device:  f8:1a:18:1b:ba:f7
Found device: jpthingy f8:1a:18:1b:ba:f5
noble stopping scan
noble starting scan

The device is a Nordic "Thingy" based on NRF52. I don't use Puck.js because I temporarily lost it . . .

I tried with both CSR and Broadcom based BLE dongles, same result. In both cases the IDE finds the device but when I select a port, no Bluetooth port appears. Check box Connect over Bluetooth Smart (BTLE) via 'noble' is checked. Espruino Native IDE version is win64_0v65.9. Any idea?