Search results

Pins 1, 5, and 16 on the LCD are all ground. Just run them to your ground bus. JP8, or LCD pin 3, is the contrast pin. The 10K resistor is actually a trim pot. The trim pot allows you to adjust contrast on the LCD. The trim pot is a square little resistor with a screw on top. You have to...

So I finally got everything together and this thing works like a charm! The only time the smoker got too cold was when it ran out of fuel. Making a charcoal basket is my next addition/modification to my smoker. And for those wondering, I'm using this on a offset smoker (el cheapo brand :/ )...

Again, thanks for your response, Bryan! I've finally got everything working! At least, on a breadboard on my kitchen table. I'm gonna get this soldered and installed into my project box tomorrow (hopefully) and give it a proper test soon. I'm glad I've already taken care of the fan mount...

So I'm looking at the LCD part of the schematic and two questions come to mind. One in regards to the shift-register. I ordered the one that is listed in the Google Docs parts list. The other is a question about a note on Bryan's schematic. 1. The schematic for the shift register shows pin...

This is one big reason why I'm trying to finish it up. Doing a test run on the smoker and it's working fine, completely as expected. I'm going to have to figure out how to set my smoker up right and how to maintain it. The LCD and buttons are my next task. Ed, I REALLY appreciate how much...

Thanks so much for both of your replies, Bryan and Ed! Good news is, I got the basics working again! Add desoldering to the list of things I'm learning through this project. I had everything working on a breadboard. When I transfered it to a PCB, I stupidly soldered the fan diode backwards...

I'm running into some issues that I can't seem to figure out. Hoping you guys can help me here. I had the very basics running yesterday. Pit probe, Arduino, and fan. I could hold a lighter up to the pit probe and watch the temp climb on the serial monitor. The fan would turn on and off...

So after a little thought, I decided to add in the LCD and buttons. It's really not that much in the grand scheme of things. I only had one question, though. Will this capacitor work for C2 on Bryan's schematic? I couldn't find it on the Google Docs part sheet.

Please excuse my confusion here, but on the schematic linked on Bryan's first post on this tread shows 10k resistors for the probes, but Ed, your drawing shows 22k resistors for the probes. I ordered 10k resistors based off of Bryan's schematic. Should I have purchased 22k resistors instead?

Thanks again, Ed! I just pulled the trigger on the parts. Can't wait to start tinkering with this! Again, I REALLY appreciate how much everyone has put into this!

Thanks so much, Ed! I was more or less concerned with the wiring. I'll get the right resistors based of the scheme posted by Bryan. And I just picked the capacitor from one I found on the Fritzing program. I'll pick up an electorlytic for the real deal. Not sure what you mean by floating...

Thanks, Ed. We cannot wait! Since I'm new to this whole electronics thing, I downloaded Fritzing and tried to virtually breadboard the "lite" version that I want to make. Would someone mind looking at this below and tell me if it looks correct?

Considering the lack of availability of a WiShield (and the fact that my wife is a week away from her due date - it's our first baby), I'm looking at the money saving "lite" version of the Heatermeter - no button, no LCD, no wireless. I can always add these later if I want them. My question...

Thanks again, Ed! So all of my thinking was correct. Thanks for verifying it. Now on to my next big question: powering the 12 VDC blower. If I remember correctly, it was stated a few posts ago that I can plug a 12 VDC wall wart directly into the Arduino board and that the board will step...

Thanks for the response, Ed! I have read this entire thread and tried to understand as much as I could. I will follow Bryan's advice regarding WiShield 2.0. Let me share what I think the correct route to follow is, regarding the probe circuitry. I ask for forgiveness beforehand, as this will...

First of all, let me say WOW! There are some amazing things in this thread! I'll get to my question first, and provide more information and background after, for those interested. Would someone mind providing a physical explanation of how I would wire the Maverick probes into this system...