ESP8266 Community Forum

- Wed Mar 29, 2017 7:14 am #64367 The data sheet I found shows a current rating of 250mA. http://www.holtek.com.tw/documents/1017 ... -1v100.pdf
HT7833 is rated for 500mA. http://www.holtek.com.tw/documents/1017 ... xxv130.pdf

If you have any unstable operation you might look to change that. I had a Microchip part that was rated for 250mA and it worked much of the time, but I did experience problems. Once I switched to a 500mA part all the problems went away.

- Wed Mar 29, 2017 8:01 am #64368

The data sheet I found shows a current rating of 250mA. http://www.holtek.com.tw/documents/1017 ... -1v100.pdf
HT7833 is rated for 500mA. http://www.holtek.com.tw/documents/1017 ... xxv130.pdf

Ooh, nice catch there, mate.
I'm not sure where I got the 500mA figure from, maybe the seller
Anyway it should be fine, it's only receiving, not transmitting, we'll see...
Funnily enough, fleabay does not seem to carry any 7833s, I suppose one could still get them from a more serious source, if one had to, though I would probably end up adapting 117s, as you did, keep it simple...

(PS. No probs, found a whole pile on aliexpres)

Last edited by alex_g on Wed Mar 29, 2017 8:08 am, edited 1 time in total.

- Wed Mar 29, 2017 8:04 am #64369 Make sure to add a 47uF capacitor at the HT7333 output, it will help.

- Wed Mar 29, 2017 8:09 am #64370

Make sure to add a 47uF capacitor at the HT7333 output, it will help.

Thanks for the tip!