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Can confirm what @Serj said about my eBay listing. The Bangle.js 1 watch I'm selling also comes with the original charging cable. Although, it seems you only need the cable and not an extra watch--in that case it would be a waste to buy the device, even at half-price.
(just changed the listing price to $25 when it was previously $50) -
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(Price changed to $25)
Hi all,
I'm selling my Bangle.js 1 on eBay for $75 USD (Price is negotiable through offers). It's used, but in good condition and with the original packaging.
I can only ship the item domestically in the United States, unfortunately.
(the link will probably open eBay's UK site due to how the message board manages outgoing URLs)
https://www.ebay.com/itm/393907942269 -
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Hi, all.
I want to update my watch to the latest firmware. The instructions requires that I "Install the Nordic Semiconductor NRF Toolbox App for Android or iOS"... and I don't have a smartphone at all.
Isn't there a way to update the firmware without needing a mobile device? Considering that I can use my PC to connect to the watch, I don't see it impossible to update the firmware the same way the mobile app does. Of course, I don't think a web IDE can just flash an entire firmware image onto the watch; maybe there is a program I need to install or run on the PC itself.
I would greatly appreciate it if someone can help me. -
Hi,
I wasn't able to give an immediate response to the new posts; I'm preoccupied with my college classes, and this project is more or less in the backburner.Thanks for the detailed instructions, @Gordon. I currently do not have soldering tools to remove and attach electronics, but I could get them a few weeks from now. This is going to be my first time modifying PCB boards, although I have some experience in soldering and the proper equipment to perform it.
@kri100s, the links you have provided seem to detail a manufacturer's component. I could sample it and design a PCB to mount it to the analog pins, but I'm not sure what other components it would need (it has 56 pins which is a little intimidating). I don't have too much experience with electronics and I'm pretty terrible at reading PCB schematics and block diagrams; in my spare time, I'll try to improve reading these diagrams.
Eventually, I want to create custom straps with embedded electrodes for the sensor. If I go the extra mile, I could also add a new HRM. For now, I'm seeing if I can modify the watch to accommodate just the skin-conductance sensor.
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@Gene, Morse code messages sound like an interesting idea.
I was actually thinking of using Morse code as a means to input text on the device, given the limited set of buttons that it has. However, I can't imagine myself decoding Morse code that easily, let alone inputting text with it. It's probably worth a try, regardless.
Edit: Excuse me if this is a dumb question in regards to capability but, is it possible to play sounds from the watch using a Bluetooth audio device? -
Hi all,
I bought the Bangle.js watch to experiment with its sensors and create a program for behavior awareness and intervention (I am an individual struggling with anxiety and anger issues).
The program that I have in mind will function as a stress indicator; this program will use the correlation of a certain sensor readout to stress and will display an alert if the sensor's value goes beyond a predefined threshold.
Because I find the heart rate sensor to be too flimsy for accurate HR measurements, I want to use a skin conductance sensor instead. However, I have no idea where to start, regarding watch modifications and sensor placement. One issue is finding the connections on the Bangle.js' board that I can use, and another would be creating and connecting the circuitry. I also know well that passing a current through skin can cause electrical burns with prolonged usage--I want to prevent this while still being to wear the watch on a daily basis and without any inconvenient maintenance/precautionary procedures.
Given these issues, does anyone have any ideas how I should approach them?
Lowered price to $25 USD.