Analog Output/Write

Support Wixel
1

Pololu Wixel Do you have an analog output/write?
How do I use the analog output/write?
For example, the
1 3.3v
0.7 2.31 ​​v
0.5 1.65 v
0 0v
Is it?

2

Hello. The Wixel does not have a digital-to-analog converter (DAC), so it cannot do what you describe. If you want to generate a PWM signal instead, you could use one of the timers to do that. More information about the timers are in the CC2511F32 datasheet.

–David

3

Also, How to properly drive the dc motor?

Test-servo.c ran servo motors.
But the PWM signal “l293d and Pololu TB6612FNG” did not work.
Did not work at full speed. Moves very slowly.

What should I do?

Thanks in advance.

4

The Wixel’s servo library and the test_servos app will not work well for DC motors because they emit RC pulses, which are special type of PWM that usually have a duty cycle between 5% and 10%. You should look into using one of the Wixel’s timers (for example, Timer 1) to generate PWM signals for motor control.

–David

5

I figured it out.
My knowledge, not much. My English is very bad.
Example of dc motor drive for Pololu wixel have? (l293d or Pololu TB6612FNG)
Or do I have to make from scratch?

6

Unfortunately, we do not have an example of what you are looking for. --David