Simple servo control on pwm channel12

Forum 2005-2010 (read only) Hardware Interfacing
1

ok. I am building a robotics project for my high school sophmore science fair, I have all the materials and have my arduino decemilia board and shield set up, the chassis is built and my servo is here. but...

I dont know c, the closest thing i know is c++, so most of the larger & more complex codes are compleatly lost on me.

how do I control a servo over pwm didgital channel 12 on theboard? simple commands like center, left 45, right 45 ect. ect.

code in C is helpful as long as it is simple, I will be incorperating it into my project so please leave details for sighting the code properly if possible,

thanks a bunch
~monk

2

here yo go: Arduino Playground - Servotimer1

or just go to the playground and look up hardware interface, and servos

3

sorry, never mind this post

4

Im sorry, im just compleatly lost, even tho the code is well commented, im compleatly bewildered

5

ok, go here :

http://www.arduino.cc/playground/Main/InterfacingWithHardware#Output

and scroll down to servos, and click any link that you need, it will tell you if u need chips, or anything!
hope thats a little more helpful...

6

There is a link here: http://blog.thestem.ca/archives/74
to a simple sketch that controls a typical hobby servo connected to a digital output using a potentiometer connected to an analog input. it may be a good place to start

7

Try this: http://todbot.com/arduino/sketches/ServoSerialBetter/ServoSerialBetter.pde

Basically, what you do is turn a pin to HIGH wait for a very short amount of time, and turn it back off.

8

Try this: http://todbot.com/arduino/sketches/ServoSerialBetter/ServoSerialBetter.pde

Basically, what you do is turn a pin to HIGH wait for a very short amount of time, and turn it back off.

..and wait so that there is a 20 millisecond gap between pulses

The code dra linked has the advantage that additional processing is being done during the 20ms period between pulses.