The RX of the UART is also connected to the bus, but via a 2N7000 to reduce the 5V levels to 3.3V. It seems that the UART in the RPi has its own internal pullup, so anything higher than 10kOhm in this ...

LED Power Circuit for RPi is a power circuit which is a voltage level transfer circuit for the Raspberry Pi. Since the Raspberry Pi specified GPIO voltage is 3.3V and the Max rated source/sink current ...

This paper presents a compact transistor model for circuit design in a flexible amorphous indium gallium zinc oxide (a-IGZO) thin-film transistor (TFT) technology. The presented model is technology ...