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peejayw

1757 posts

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#311542 25-Jan-2024 16:56
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I recently purchased from Ali an ESP 32 for presence detection using Espresence. I can install Espresence ok but it will not connect to wifi. On Ali it is described as "D1 Mini ESP32 ESP32 CP2102/ CP2104 Wireless WiFi Bluetooth Internet"
In the photo it is the board on the left and to the right is an ESP 8266. On it you can clearly see the wifi antenna but not on the 32 although if you look at the right angle you can see faint markings on the black portion similair to the 8266.
Are they supposed to look like this or do I have a dud? Is there a simple way to test wifi output?
Thanks.

 

 

 





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richms
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  #3186509 25-Jan-2024 17:04
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That is fine, its just the solder mask on the traces.

 

To test it install the arduino IDE and esp32 boards and try the examples (there is one that will connect to wifi and show its IP address in the serial console) and see if they work to prove the hardware is good.

 

I have had dud 8266 modules before where one of the parts of the RF circuit was soldered a different way to connect to an external antenna which did not have the plug on the board to take it so was effectively useless.

 

 





Richard rich.ms

 
 
 

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peejayw

1757 posts

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  #3186513 25-Jan-2024 17:52
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Thanks,

 

Downloaded and installed the IDE, do I now have to install a sketch?





 I'm supposed to respect my elders, but it's getting harder and harder for me to find one now.


peejayw

1757 posts

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  #3186519 25-Jan-2024 18:13
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Ignore, I found an example and connected to board OK so wifi is working.





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