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got it

signature = HmacSHA256(token, secret);
print(btoa(String.fromCharCode.apply(nul­l, signature)));

Missing a last piece, how to encode the Uint8Array([...]).bufferto a base64. The method toString only allow option 2 and 16, base64 is not implemented, any hint?

There should be a new module named hmac2, because not all boards include SHA256.

Yes, definitely - on my way but struggling a fresh LINUX build and a working connecting via tcp.

sha-256 64 32

Nice, thank for sharing, will try to write a HmacSHA256 module.

Found this link and started with this:

var header = {
  "alg": "HS256",
  "typ": "JWT"
};

var data = {
  "id": 1337,
  "username": "john.doe"
};

var encodedHeader = btoa(JSON.stringify(header));
var encodedData = btoa(JSON.stringify(data));
var token = encodedHeader + "." + encodedData;
var secret = "My very confidential secret!";

print(token);

/* struggled at this point, no clue if there i an existing solution for this 
var signature = CryptoJS.HmacSHA256(token, secret);
*/

signature = btoa(signature);
var signedToken = token + "." + signature;

Any hints howto?

Disconnect from a tcp:// connection does not work

@Gordon is there a chance that mbedtls will be updated?

Looks like there is a filter, because a MDBT42Q Bluetooth Module is displayed correct in VSC.

Now using the extension very often - many thanks again for you work. Even with a Windows PC but that show only the mac and no name for ble devices. The WebIDE can show them.

• What kind of board do you have?

• What is the output of process.env

Found this nice online ESP Stack Trace Decoder developed by Maxime BORGES.

Is there a way to optimize var nps = E.toUint8Array({data:fiveLEDs.buffer,cou­nt:20}); ?

Sharing a way how to setup neopixel, set color and send simple patterns - Many thanks to @Gordon who mentioned this possibility via Uint24Array().

// load module
var np = require('neopixel');

//  pin data line is attached to
var NPP= D16;

// number of neopixel
var countNP = 100;

// use  Uint24Array  to store an address single pixel
var neopixelStrip = new Uint24Array(countNP);

// set color for  first and last pixel
var color = {r:20,g:0,b:20};
var c = color.g + (color.r << 8) + (color.b << 16);
neopixelStrip.buffer[0] = c;
neopixelStrip.buffer[countNP-1] = c;

// flip neopixel
np.write(NPP, neopixelStrip.buffer);

Send a pattern all over the neopixel strip

// Solution A
// simple pattern "_  _  Green _  _"
var fiveLEDs = new Uint24Array(5);
fiveLEDs[2] = 30;
// fill buffer with a pattern array and count 
var nps = E.toUint8Array({data:fiveLEDs.buffer,cou­nt:20});

// Solution B
// fill buffer with pattern
for ( i = 2; i < countNP; i +=5 ) { neopixelStrip.buffer[i] = 30;

maybe I can send you one, let me check.

look for module https://www.espruino.com/tinyMQTT

Wow..... I completely missed that one...... many thanks for this implementation!

I solderd a clean ESP01S to the PixlJS by mistake and like to know if there a way to flash the AT image for the ESP01S via the PixlJS Multicolor.?

Hi, is there a way to flash the ESP01s via the PixlJS?

Hmm, is there a reason why you do not flash the 4MB firmware file? First step is to erase and than flash.

Sure - it work's - many thanks!

.

look's like Mac OS X specific.....

My node version is v16.20.2. Found the dev tools and attached the issue