08-05-2019, 05:29
(08-05-2019, 04:13)richaam Wrote: Are there any tests I can do to confirm that it is a hardware problem with the WiFi module?
Hello Adam,
There are some things you can check, however they may not be conclusive to say if the WiFi module is defective. Anyway, with a voltmeter, check this (use the schematic to help):
- GPIO0 pin should always be 3.3V level
- GPIO15 pin should always be at GND level (also check connection to GND - there is a pull down 10K resistor)
- CH_PD pin should always be at 3.3V level
- Reset Pin normally should be at 3.3V
(I'm trying to eliminate the possibility of the WiFi be in flashing mode due to an electrical issue)
There is also a possibility of a welding problem, so additionally to the checks described above, you can reheat all the solder points between the WiFi module and the PCB.
(08-05-2019, 04:13)richaam Wrote: ... I am planning on connecting a Raspberry Pi with cumulus, so it may not be a big deal if I can't get it working.
But its a pity having it running without the WiFi capabilities.
In case of nor you, nor someone near you can help to replace the WiFi module, you can send the board to me and I will replace it.
Rgs.