@marka2 said in Please Help: Has anybody had success with the ESP32CAM on Arduino?:
@lurk_ Yes. Look at the video, the code says you must have PSRAM. Why do I need PSRAM in the case of Arduino? Anybody know?
PSram is only available in the later model cameras if you have the bare PCB or the Model A camera then psram is not available.
Thank you for your proposal. Two questions:
1.) Using GPIO34 for TX on the GPS module does not cause any issues with the "Base M5Go Bottom"? As far as I understand the schematics, GPIO34 is linked to the max4466 on the "Base M5Go Bottom".
Would it make sense to use GPIO36 instead, as this is linked to the GPIO-Connector Grove-B/Pin1? So the GPS-TX is accessible outside the M5 stack via this pin. Not a nice solution, as it needs 2x Grove connectors to access TX and RX. But it should work.
2.) I would rather modify the "Base M5Go Bottom" to increase the voltage level on the UART.
Again, I do not find the resistors (240 Ohm) described in the original post in any schematic. I also did not find any document defining this UART as 1.5V interface... This is somehow misleading, as there is a 5V reference output on the Grove-C. I would expect 5V (or 3.3V, but not 1.5V).
==> Please confirm or correct me: Removing the 240 Ohm resistors from the Grove-C Connector on the "Base M5Go Bottom" should solve the problem as well. What will be typical the voltage level then? 5V or 3.3V?
Thank you & best regards
@snmcma 在 Stack is dead :( 中说：
@m5stack 在 Stack is dead :( 中说：
you mean Arduino?
can throw off the firmware file for overwriting in m5? and a screenshot how to write down
you can throw off all the firmware files with the instruction how to return to the initial state, micropyton does not suit me. I reprogrammed it as an esp32 dev module, unfortunately in m5stack mode it is not programmed
If you do not have a capacitor available, you can also try to set the "Upload Speed" to 115200 in Arduino IDE.
Of course the uploads are longer, but it did the job for me : i did not have any upload error since
I also installed the latest CP210x Windows driver (v10.1.1 for Windows 10) but i don't think this is necessary
It is a built-in function of PMU. One pressing will only reset the ESP32, double pressing will be treated as power off, so the PMU will directly cut-off the MCU's power. We may supply modifying such functions in the future hardware releases.