+5V | R 10k -----------+----------------> | To another station TxD |/ and in the end into ---R 10k--| an RXD of a maste AVR |\ | BC548 \|/ | GND
I'm making a bus. I wan't multiple devices to be able
to transmit (not all together). It will be similar to an I2C. I think this will work.
Will this work? Won't the Uce of the transistor be too big?
On each station a pullup resistor is connected to a central bus. When TXD = 1, the bus is pulled down. The tranzistor is connected to the ground with its emmiter.