A voltage to frequency converter can realize an opto-isolated analog input for Arduino or other microcontroller systems.
Project tutorial by Giovanni Carrera
A simple and inexpensive solution is to use a 'mobile power bank'
by Giovanni Carrera
With this simple circuit the analog output of Arduino Due start from zero
A tiny telegraph that can write any text messages that look like a telegrammes. This project made of oak plywood.
Project showcase by Yegor_A
A smartwatch with fall and location detection, reminders and more, designed to help you or your loved one with Alzheimer's!
Project tutorial by Abdullah Sadiq
Learn how to create a tide gauge that publishes tidal water levels to ThingSpeak and uses MATLAB for tide prediction, analysis, and alerts.
Project tutorial by MATLAB IoT
Hi David, I think with this circuit you want to set the values of an analog pid, why don't you make a digital pid with Arduino Due with analog output? In another post I also made the design of a bipolar output.
Returning to my circuit, with regard to the output of the LM358, since it is powered by single power, it can never have a zero output, but there will be a difference of a few millivolts. In essence, for values close to zero there will be errors.
Hi David, thank you for appreciation. Answering the first question, I would say yes, though I have never tried two dacs. You have to build two equal circuits (one LM358 for both) with gain G = 4 /2.2 = 1.82, so resistors R2 = 182 k , that is also a standard E96 value.
sorry, I can't help you because I don't know that board
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