Hey everyone! I'm working on creating an assistive device for kids with disabilities that allows them to operate various devices using large switches that connect via a 3.5mm jack. The setup requires a motor that spins when a button is pressed, but I'm running into some issues. I'm using a drill motor, which pulls too much current for my circuit, especially through the 22-gauge wire I'm using. I briefly considered integrating a motor controller and an Arduino, but that seems too bulky and would require a different battery configuration. My motor operates at 3V but draws significant amps, and I'm currently using 6 AA batteries arranged in a 2s 3p configuration for specific reasons. I'm curious if a MOSFET circuit might be a good solution, but I'm a bit lost on how to correctly manage the voltages from my battery setup. Any suggestions? Thanks!
2 Answers
Have you considered using the L298 motor driver? It's a common choice for similar projects, but I get that you might find it a bit bulky. If you're looking for less functionality and a smaller space, could you refine your requirements a bit? There might be simpler alternatives that could work!
You might want to check out the TB6612FNG motor driver. It's designed using MOSFETs instead of bipolar junction transistors, which makes it more efficient with a lesser voltage drop compared to the L298N drivers. Plus, it has a compact form factor, making it perfect for your project. Just make sure to look for it online; it should fit your needs well!