Hello esch_espesch_esp wrote:Hello,
To get the thermal pad connected, I used one of the standard adapter boards from ali e.g. https://www.aliexpress.com/item/5Pcs-ES ... 178.bnub8x&. Then drilled a 1.5 mm hole through the thermal pad position on the adapter board.
By that it was easy to solder the thermal pad from the back. The proper way of course would be to have a via in the board design ..
So far I have not tried thermal paste. But also did not expect that much heat dissipation.
I did not do any benchmark tests. Just running a webserver based on a local filesystem, including an adapted version of tinyshell. Debugging information is transferred over tcpip to an ajax based log window. The idf is version 2, freertos. This of course if not much load on that CPU yet.
Ambient temperature around 22 degrees celsius.
Touching the metal case of a board which has no thermal contact and shows around 140 with the finger, the value goes down by about 5 values. So there is an effect, but not that high. I was surprised, that frequency scaling still is not supported via the API, that could be the answer for some heat issues. I am running my application at 240 MHz.
In your post you mentioned the use of ajax, right now im am testing a web server on the esp32 and I would like to have ajax functionalities.. would you mind to point me with some code around it?