Defirence gpio´s

what is that curd cheese with the different voltage of the GPIO’s

GPIO Voltage Level Tolerance
GPIO3_C0 3.3V 3.465V
ADC_IN0 1.8V 1.98V
Other GPIO 3.0V 3.14V

Should that be so? is not compatible then to the Raspberry or.


Yes, it is not 100% compatible.

Raspberry Pi GPIO pins are 3V3 (3.3V), while Rock Pi (RK 3399) GPIO pins are 3V.

So the Rockpi is unsuitable for my purposes, since the other chips in my project all work with 3V3 and the Signala also output with 3V3.

Already discussed here: GPIO voltage & short circuit to GND

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