Society of Robots - Robot Forum

Electronics => Electronics => Topic started by: Borot on January 23, 2010, 08:24:45 AM

Title: what is the purpose of Port D (PD7..PD0) on the atmega8L chips?
Post by: Borot on January 23, 2010, 08:24:45 AM

What is the function of Port D (PD7..PD0) on the atmega8 chips used on the 50 dollar robot ? I read that they are an i/o port with a pull up resistor, but for someone who's new to chip function what does it do when the led resistor power indicator circuit is connected?

Title: Re: what is the purpose of Port D (PD7..PD0) on the atmega8L chips?
Post by: Pierre on January 23, 2010, 08:36:12 AM

On the $50 robot Port D on the ATmega8 are digital I/O and used for the servo output for the robot.  Later you can UART by using PD0(RX) and PD1(TX).

$50 robot tells you about Port D and there is a tutorial for the UART.

Have fun