Posts tagged ‘lcd’


Full Rotation Servo

Last time I wrote I told you that I had new toys from sparkfun. Two of those were full rotation servos (also: buttons!).

When I bought them I though they were 360ยบ servos but instead they are servos that rotate indefinitely, so they don’t have position control, but they have speed and direction control. Also, they feel very strong.

This is a little program that I did to test the servos:

Two buttons are used to control the direction and the speed and it is displayed in the LCD display.


Very basic interface with Arduino and LCD screen

This is a little something I started working with this week.
I bought a Serial LCD screen from Sparkfun last year and I just realized that I have never used it.

This is as basic as it gets. Two buttons for cycling through the options and one button for action.

The next step is adding PWM and controlling it with another two buttons and maybe a setting screen for setting up the brightness of the screen.

By the way, if you get an LCD from Sparkfun make sure you select the correct voltage. I bought mine 5V but my two FTDIs are 3.3V. I had to convert one to 5V to avoid using an external source.