Here are some instructions on how to use it with our DC Motor Driver. However, if you want to do more advanced things (like combining it with a quadrature encoder and doing edge-triggered interrupts) then you will want to use an opto isolator to keep things nice and clean. In normal operation, this is not a problem. The DC motor driver can generate a bit of line noise. Light and electromagnetic radiation are synonymous in some cases, performance or functionality improves by transmitting information using light flashes instead of direct conduction. Attach the corresponding outputs to device B Optocoupler circuits provide safe isolation from high-voltage sources, protecting equipment and users.Attach up to 4 output signals on device A to the 4 IN inputs. The basic technique is this (with device A (sender) and device B receiver) I am trying to calculate the resistor value required for an opto-isolator circuit. Stack Exchange network consists of 183 Q&A communities including Stack Overflow, the largest, most trusted online community for developers to learn. The device is intended to isolate the circuits electrically, so each side needs to be powered independently. I am trying to calculate the resistor value required for an opto-isolator circui. An opto-isolator is a component that transfers electrical signals between two isolated circuits by using light. Additionally, you will need to properly hook it up to each devices power supply. Since it just passes signals through it, you just hook it up between the two different devices you want to communicate. They're keyed, so they can only be inserted in one orientation.
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