Digital Display

Community General Discussions
1

I would like to display a number using the output from a usdigital ma3 digital encoder. Looking for the most simple solution for testing.

Thanks

2

Thank you very much for the answer. I have the 10 bit PWM encoder.

Is there any way that you can use a simple display like this one (RB-Spa-445) made by sparkfun and sold on your site. I am not sure what SPI or I2C Serial Interface is but I am interested in taking the pulse width straight from the encoder and displaying an angle degree value on the display. I would like to do that without an arduino if possible.

3

I have a usdigital ma3 10 bit PWM (pulse width modulation) encoder.

Is there any way that you can use a simple display like this one (RB-Spa-445) made by sparkfun and sold on robotshop.com to display an angle of an arm using this encoder. I am not sure what SPI or I2C Serial Interface is but I am interested in taking the pulse width straight from the encoder and displaying an angle degree value on the display. I would like to do that without an arduino if possible.

Thanks

4

How do you connect to the RB-SPA-445 for programming and uploading the sketch? Instead of a USB connection like the arduino would use.

Thanks

5

Is your version of the MA3 encoder with 10-bit or 12-bit PWM?

You can use an Arduino with the pulseIn function to measure the pulses that the encoder outputs. The pulseIn function however might not be able to properly measure pulses from 0-10us…

If you use the Arduino, you can output the measured pulse on an LCD shield shield for the Arduino.

We hope this helps,

6

Yes, you can reprogram the microcontroller (ATmega328) on the RB-Spa-445 to do the same thing you could have done with the Arduino.

The pin labelled MOSI should be pin 11 in the Arduino sketch.

7

You can use this adapter:

If you need, here’s a USB cable:

And here’s are some headers: