Uart2 does not wirk correctly

Development Tools Cloud IoT
1

I have a project with ESP32 C3mini and a IR sensor with UART which is connect to Serial1
e.g.
#define RXD2 7 // Serial Input IR sensor ESP32 C3 supermini
#define TXD2 10 // Serial
Serial1.begin(9600, SERIAL_8N1, RXD2, TXD2); // IR Sensor

In VSC the sketch works fine but not in IOT.
Seems that IO7 is occupied by somthing else.
An idea?

2

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