i'm using arduino Uno and Xbee to send some remote data to another xbee connected to a computer. I have connected Tx/Rx pins from arduino to Rx/Tx xbee pins and everything is working ok.
My senddata() function is very simple so i would like to replace arduino for a programable chip like Attiny45. In the past i already used arduino to program a attiny45 chip do output basic data on their ADC pins but now i need to map the attiny45 pins to the Rx/Tx pins of the xbee.
So, my question is: is it possible to use arduino to program a chip like Attiny45 and use 2 ADC pins to act like Tx/Rx pins? Wich pins should i use?
btw, i am curious to know why you need the arduino instead of using the xbee pins.
My doubt is witch pins from the attiny45 should i use, any digital pin works? I have pin2 and pin4 available.
My remote data comes from a ultrasonic sensor, i need arduino/attiny45 to do some math before and i want to build the xbee message to send more complex data.