output devices
Output devices.
yup
I tried to make a board that would drive a servo motor. And also one for just an LED.
I made a new board based on an ATmega328P (which is what the arduino uno is built up from) for the purposes of making an arduino type board. There have been multiple of these types of board made before, such as the Satshakit, the Fabkit, and Neil's board here. I based my board off of these and off of just reading the datasheet, so I wasn't super confident in it working (so I also made a break-out board for the attiny44, which I was confident would work). The main differences between this and Neil's is that I ditched the ISP header, and I have output traces for all the unused pins. The main difference between this one and the Satshakit is that I don't use a bunch of capacitors in parallel and just go with the recommended capacitance from the datasheet. So hopefully that works fine? I dunno. I had a lot of trouble routing this board, so it could be horrible to solder, too.
I then made two small boards (one with an LED+resistor) and one to drive the servo. The way the servo one works is using an N-channel MOSFET. MOSFETs are basically voltage gated switches, so the way that circuit works is by toggling the MOSFET on and off to drive the servo some amount.
I was super busy this week, sorry there isn't more here right now. I'll update this page later tonight, probably?
