Search results for:

Excuse me for the next stupid question: where do I apply power to the module?
Upper right corner?

Can I put power to 3v / GND to run it instead of the battery holder?
Does it take 3.6v without trouble (LFP battery)?
Thank you!

Thank you, have found the note on how to reset the device meanwhile.
So by connecting D0 to VDD shortly, the module goes into DFU mode, right?
I plan on connecting to it via iOS nRF Connect ... DFU mode times out after 30-60 seconds I have read?

Firmware update page says ...

Entering DFU mode MDBT42Q / Puck.js Apply power while holding the
button (or button 1 on Pixl.js) down A LED will now stay lit (green on
Puck.js, red on MDBT42Q) The device is now in bootloader mode

... but the module has no buttons, no LED. Please advise.

Well, maybe it's just a matter of the spectral ... the blinking LED is red, human visible. The GL5537 "aims" at 550 nm, which is rather green. The GL5637D is sensitive at 560 nm ... as far as I can see, 580-590nm would make sense ... dont you think?

Hi, let me pull this thread up again. I do have another question about the sensor. We have a newly installed electricity meter now and the LEDs are very much less bright as at the meter before. So the GL5537 doesn't seem to recognize the quick flashing anymore. Is there a more sensitive sensor? I see there are couple of others ... GL5539, G5549, GL5637D (spectral peak 560nm?!) - different Ohms but I dont see if they are more sensitive or not. Any help is appreciated.

Hi,
I must admit, this does not really belong to Puck.js, but maybe someone has an idea.
My older iphone (6) seems to have a very short Bluetooth distance, because I have to get real close to the Puck to connect. It is much better with a 6S - but I am looking for a cheaper solution. I thought about trying Android: it will just have to get online (wifi), request a simple website and - most important - connect smoothly to the Puck. I am used to Apple for many years now: which Android is good and cheap?
Thank you!

Oh, really? Yes I am using this library. That would be quite an improvement! Unfortunately, I don't know how to do this ...

Yeah, well, but it needs a human input to reconnect. Since I am not near the phone below and there is no way to remotely control an iPhone ... I'll have to walk downstairs.

It's been my Adblocker misinterpreting the icon. Thank you!

@user135414

I have the puck in a public room downstairs. Since I cannot access it from the 3rd floor (out of bluetooth range) I have placed an old iPhone in a locked room close to the puck. This phone has access to wifi and internet. When I open my website with the phone, it connects through WebBLE to the puck (just like the electricity meter example). I have added some Javascript (infinite loop) to the website which calls an URL (XMLHttpRequest) once a day passing data from the Puck-object. This works quite well. However, if the connections is lost (for whatever reason), I'll have to walk downstairs, refresh the website to reconnect to the puck. Still have to see how often this will be the case.

Maybe I am blind, but I don't see any button / option to do this. How do I connect without uploading?

Hey Gordon, thank you for getting back so quickly. Yes, the electricity meter example.
I use WebBLE on my iPhone, the connection is definitely working. But as I said: all is black. Now I think this is because it uploads something everytime I connect - thus reseting the whole thing. How can I connect without uploading something?! One more question: what happens if the power runs out? Guess it not only shuts off, but all data is lost as well?

Hi,
I am trying the above example, puck is attached to the meter and blinks whenever the electricity meter is blinking. Looks good in my eyes. Unfortunately, when I try the dashboard code on my iPhone (yes, it connects) it only shows 100% battery power, everything else is black. I have let it run for 24 hours now (thought it needs some data first), but no change.
Any hint is welcome.
Btw - whenever I connect with my Macbook now (https://www.espruino.com/ide/#) it OVERWRITES the existing code on puck and all is gone. No chance to check anything. WTF?!
Cheers,
Dan