Evothings

Posted: **04:24, 01 Nov 2015**

This seems like it should be simple, but I can't figure it out after much trial and error (my HTML/JS skills are sketchy at best).

I want to have a number input box in an Evothings app that, upon clicking a SUBMIT button, would write that value to a BLE characteristic on my device. I've got a jQuery knob that can successfully write a range values as well as buttons that can successfully write individual values, but I can't get a number box to send an arbitrarily typed-in number to the device.

Below is some part-HTML, part-pseudo-code of what I am trying to do. Any suggestions would be most appreciated.

Don

Code: Select all

<input type="number" id="ambTemp" min="65" max="81">
<input type="submit" onclick="some code here to send the value 'ambTemp' to the device">

Posted: **10:32, 02 Nov 2015**

If your number is to be sent as a single byte, I imagine something like this could work:

Code: Select all

new Uint8Array([Number(document.getElementById('ambTemp').value)])

Posted: **04:11, 05 Nov 2015**

Belated thanks for the reply. I got by with just having up/down buttons, but I will still try your suggestion to be ready for the next time.

Evothings

Send Value from Input Number Box to Write Characteristic

Send Value from Input Number Box to Write Characteristic

Re: Send Value from Input Number Box to Write Characteristic

Re: Send Value from Input Number Box to Write Characteristic