I re-designed my circuit to use the WROOM-02 module and to be more flexible in regards of debugging. I have not changed the power circuit for the 3.3V, but I changed the LDO that I want to use. Beside from that I added more points for debugging purpose. Is there anything I need to change so that the...

So the only explanation that holds for me is that there is some issue with the chip, as the circuit seems to be good, the power supply is working without any issues with the dev-kit and is stable and the components used in the circuit are good to use. I will change to the WROOM-02 and hopefully it w...

Hi, I checked multiple PCBs with the same routing and all showed similar behavior. The Power supply is definitely stable because I can run the dev kit with the power supply without any issues. Therefore my guess would be that something is wrong with my circuit or the chip. Might it be that this issu...

Hello again, I checked using Putty the Serial communication. Most of the times when connecting the device to the USB-TTL Bridge I get nothing. Sometimes I get the following output: ESP-ROM:esp32c3-api1-20210207 Build:Feb 7 2021 rst:0x1 (POWERON),boot:0xc (SPI_FAST_FLASH_BOOT) invalid header: 0xfffff...

Thanks again for the response and the tipps. To give an update I checked the following: - I disconnected the LDO (U2 in schematic) and the Transistor (Q1) so that I only have the power circuit for the Esp32-C3 - I connected the circuit to a laboratory power supply so that the power supply is ensured...

Thank you for your reply. I checked the power consumption of the USB-TTL-Bridge when powering the ESP32-C3-DevKitM1 and roughly 72mA / 3,3V is provided to the DevKit. The DevKit is turning on and can be flashed. I also checked the Serial communication of the DevKit using Putty and everything works l...

Hello everyone, I am fairly new to the ESP32 development and wanted to develope a simple bluetooth switch. E.g: A dedicated pin is switch high when a bluetooth signal is transmitted. Therefore I programmed the code and checked it with the ESP32-C3_DevKitM-1. Everything worked perfectly fine. After c...