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Addressable 7-Segment Displays
Robot - Hockey De Mesa
3D CAM and CNC Class
Hey there, I'm an electrical instructor at a Technical college. I love this instructable because it showcases exactly how steppers work. I am almost finished with mine with the LED upgrade and I will be using it as an object lesson for my students. I have one question though.... It seems you have the PNP transistors hooked up in an NPN configuration with the load on the positive side. Maybe I'm confused as to how PNP transistors work, but am I correct there? Obviously it works, so no problems there, but I have NPN transistors and I want to make sure I wire it correctly.
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I love the idea, but you leave so many of the steps out that it's next to impossible to build. maybe show how you installed the battery and how you wired the diode would really help.
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Great idea! Not sure about the embedded RFID lol, but I love this! How about for strength purposes just using a solenoid of some sort?https://encrypted-tbn0.gstatic.com/images?q=tbn:ANd9GcTeQ7a16k-D8Ur2a6KS6KASIb5xJqoFKUp8nyXFsioDtPR-Z1y4
Very nice! I am one of the owners of www.galaxydrumlights.com. We started out much the way you have done there although we started with an analog system. It wasn't until later that we moved into microchips. Great job!
I was looking over your tutorial here and I am confused about one thing. You show going to the TX (transmit) pin on the arduino. Aren't you sending info to the arduino from the attiny, in which case you should use the RX (receive) pin?
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