Difference between revisions of "Das Brewmeister!"
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===Project Scope=== | ===Project Scope=== | ||
| − | <b>Description:</b><br> This is an attempt to mimic the control systems used in | + | <b>Description:</b><br> This is an attempt to mimic the control systems used in commercial brewing of beer. It has been done before with some external hardware and a refrigerator + heat lamp see: |
http://www.blug.linux.no/files/presentations/freebeer/paper.pdf | http://www.blug.linux.no/files/presentations/freebeer/paper.pdf | ||
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===PCB Conversion=== | ===PCB Conversion=== | ||
| − | I thought that the conversion would be relatively simple. Just take what I had and draw, right? I used the free Eagle setup and dumped everything to BatchPCB.com. A problem arose from changing to SMDs and trying to cut too many corners. I found out, after I had assembled a board, got | + | I thought that the conversion would be relatively simple. Just take what I had and draw, right? I used the free Eagle setup and dumped everything to BatchPCB.com ([[PCB Manufacturers#BatchPCB]]). A problem arose from changing to SMDs and trying to cut too many corners. I found out, after I had assembled a board, got bizarre voltage readings and no response from the pic,that the SMD voltage regulator I had put on the new PCB required a capacitor on the output. I wanted to keep the components to a minimum and didn't include everything from the prototype when I drew up the design. I will be more aware next time. |
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===Coming Later?=== | ===Coming Later?=== | ||
Revision as of 11:11, 31 March 2010
Project Scope
Description:
This is an attempt to mimic the control systems used in commercial brewing of beer. It has been done before with some external hardware and a refrigerator + heat lamp see:
http://www.blug.linux.no/files/presentations/freebeer/paper.pdf
My approach would be similar I think I may be able to get by with modifications to Spark Fun's toaster controller and a "cluged" together wireless temp sensor. I have prototyped in a breadboard a 16F88 with the DS18S20 one wire digital temperature sensor and one of Spark Fun's old Smirf's. Proto board passes data fine, even wrote a quick VB program to dump data in to Access for later.
PCB Conversion
I thought that the conversion would be relatively simple. Just take what I had and draw, right? I used the free Eagle setup and dumped everything to BatchPCB.com (PCB Manufacturers#BatchPCB). A problem arose from changing to SMDs and trying to cut too many corners. I found out, after I had assembled a board, got bizarre voltage readings and no response from the pic,that the SMD voltage regulator I had put on the new PCB required a capacitor on the output. I wanted to keep the components to a minimum and didn't include everything from the prototype when I drew up the design. I will be more aware next time.
Coming Later?
I hope to have the new PCB in the next few weeks and if everything goes well I begin to look more closely at the reflow controller and procurement of a refrigerator. Meantime I need to find the time to actually begin brewing some beer!
Finally got something together at http://seidle.blogspot.com/ not really the project originally described but may be of interest none the less.
