04-01-2025, 04:48 PM
(03-21-2023, 08:22 AM)tanoshimi Wrote:(03-20-2023, 09:29 PM)Philadam Wrote: If you have the RF modules installed, try removing them.
Had the same issue with KCS firmware and removing the RF modules solved my problem.
Thankyou! Yes, that seems to have fixed the issue.
So, that's because of the ESP32's specific requirements for pins 2/15 to be LOW/HIGH to enter flashing/boot mode, right? And having the RF modules connected to these pins prevents that.
That seems to be somewhat of a flaw in the A16 design, because when developing and testing any application that uses those components I have to keep on removing and replacing them every time I make a modification to the sketch?
If that's the case, I wonder what the purpose of the "DOWNLOAD" button on the board is? It doesn't seem to be documented anywhere. If it's required to get the chip to enter programming mode, could it also be used to disable those components during the upload process?
Removing the RX module every time is really annoying, but it's easily fixed. Just connect the RX module's data line to the Kincony board via a 100nF (or larger) ceramic capacitor. This works perfectly for me with an RXB6 module. I'm not sure if it works with other RX modules.