Ii's a good day today. "UART0.conf0.irda_en=1"... works well. I can now continue with my project. timing.PNG The image shows what happens on the lines. Middle is the the sender, top the receiver and the lower is a toggle after Serial.flush(). All perfect. I think I just need to "UART0.conf0.irda_tx_...

Hi i am trying to implement a project that involves IRDA data communication. In all the docs it is stated, that the ESP32 UART can be configured to act as IRDA encoder/decoder and directly control an IRDA tranceiver. Based on that I did my design. Now either me or the ESP-Software have some flaws. I...

Ah, thank you.

Thanks for your answer.
So when I use a 5V to 3.3V buck converter for the power, I can directly connect USB D+ and D- to the ESP pins inspite of the fact that USB is 5V?
I'll try ....
Best regards
Thomas

Hmmm that's a bit contradictionary to what I see on the development board. There they use a USB to Serial converter chip on the board. And: USB need software on the chip that handles addressing etc. On a virgin ESP32-C3-WROOM-02 there is no USB driver I suppose. That might be the reason why they in ...

Hi I am about to design a PCB where I would like to use the ESP32­-C3 ­WROOM­-02 Module. I will use an external USB to serial board for flashing the ESP32-c3. Now for the connections: TX and RX to U0TXD and U0RXD. But the pins GPIO9 and CHIP_PU? Is it really necessary to implement a schematic like o...