so that's how it works at my c-control which is based on the amtel ATmega32

Hi,
is it possible to set a pull up resistor after defining a pin as INPUT?
Nothing about that in the tiny reference. If not, what can I do? Solder?

have fun

fritz

have you tested your script without the servos connected? Probably you've reached the maximum power level... how much mA do your servos need?

sorry, forgotten something: 4016 works from +3volts up to +15volts.

fritz

Most of the cmos parts operate up to 18 volts. If your device doesn't probably you can use a cmos switch 4016 / 4066 to have the circuits separated. That should work up to 16 Mhz. But, please read the datasheets carefully.

fritz

Just take a look at your application board. There you can find an ic named 78xx05 or something. This is for voltage regulation. 05 means 5 Volt. But you need some more parts around. Take a look at the data sheet http://www2.produktinfo.conrad.com/datenblaetter/150000-174999/156048-da-01-en-SPANNUNGSREGLER_L7805CV_STM.pdf

fritz

you can use normal outputs and a software pwm to do the job. but that's very slow

you can find something on the c control elvaluation board:

I did something similar with another uC and 10 V (12V supply).
Probably you can use this.

/me

plastic is no problem, but probably calibration will be...

can you draw your configuration?
Prob you need:
  -L293NE              4 pins   out
  -Pushbutton         1 pin    in
  -IR                     1 pin     in
  -COM          appr. 4 pins   in&out
                           --------
                           10 pins

RTFM & start with something as simple as possible