<https://maker.pro/forums/threads/simple-circuit-for-rs232-12-bit-dac.2888/>
<http://schema.org/articleBody>
"Any schematics of this? I want to control only one motor from a PC. What I\nneed is high resolution control of velocity. Position isn't necessary. The DAC\nwill connect to the control voltage input of an H-bridge that has a built-in\nPWM generator..."
<https://maker.pro/forums/threads/simple-circuit-for-rs232-12-bit-dac.2888/>