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Registered Member #242
Joined: Thu Feb 23 2006, 11:37PM
Location: Erie PA
Posts: 210
Mouser and Digikey do sell them, but I think they might charge an arm and a leg for them? I got mine from for 10 bucks. and that was because it was blue characters with the LED backlight. They also have some great prices on other stuff too. Like those 0.1" connectors that are used on PC mobo's for the power switch, speaker etc. Their shipping is kinda gay though, they wont notify you that your order has been put on hold for 4 weeks because a $0.50 part is out of stock.
Here's a kinda bad pic of the inside of the box:
I was powering the entire system off the wall outlet and I think thats what was killing my uC. I switched over to a 9V, but I still need the AC input so I can detect zero-crossings for my powersupply. I have that optically isolated.
I have my MCLR pin hooked to a switch so that I can either tie it to VCC directly while running the coil or have it pulled up with a 10k resistor for programming.
Banned on 3/17/2009. Registered Member #487
Joined: Sun Jul 09 2006, 01:22AM
Location:
Posts: 617
I once bought an LCD just like that but it was a 4X20. I'm pretty sure it was pretty cheap too but I can't remember the place I got it from. They only sold LCD's. I know that's not much help.
Registered Member #242
Joined: Thu Feb 23 2006, 11:37PM
Location: Erie PA
Posts: 210
Well it turns out that the AC Zero-crossing input was causing my reset problems. I temporarily switched over to the variac and the controller works just fine. I talked my prof. into letting me bring the coil in for a live demo. It was kinda scary transporting it there, but it made it in one piece. I did my presentation and then did the live demo. I surprised everyone by getting the audio to work at the last minute (I was up until 2AM programming the theme song to super mario brothers into it).
I have a short video of it here
I also tried burning some CDs too After awhile my chicken stick caught on fire
I'm working on another SCR controller that will get rid of the ZC input to my controller now. Once I get that working, I should be able to plug into the 220V line and really light it up :)
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