Spike Brewing 12.5 Conical Fermenter Giveaway - Enter Now!

Home Brew Forums > Search Forums > Search Results

Showing results 1 to 25 of 500
Search took 0.06 seconds.
Search: Posts Made By: ChemE
Forum: DIY Projects 03-07-2014, 07:37 PM
Replies: 99
Views: 17,718
Posted By ChemE
FuzzeWuzze is correct. One pin on the Arduino...

FuzzeWuzze is correct. One pin on the Arduino Uno will support 5 DS18B20's no problem captrichc.
Forum: DIY Projects 12-18-2013, 10:43 AM
Replies: 4
Views: 1,733
Posted By ChemE
This definitely does not have full Ethernet...

This definitely does not have full Ethernet library support. All it is doing at the moment is opening a socket to a server, sending data through that socket, and then closing the socket. I don't...
Forum: DIY Projects 12-17-2013, 01:49 PM
Replies: 4
Views: 1,733
Posted By ChemE
Über Compact Fermentation Monitor - Arduino Based

Xively feed from this code (https://xively.com/feeds/102607) These charts might not be recording data at any given moment as I test new code

Earlier this year I became interested in FuzzeWuzze's...
Forum: DIY Projects 09-04-2013, 09:02 PM
Replies: 12
Views: 6,877
Posted By ChemE
I'm pretty sure they came from Lowes though it...

I'm pretty sure they came from Lowes though it might have been Home Despot.
Forum: DIY Projects 04-17-2013, 05:30 AM
Replies: 68
Views: 11,185
Posted By ChemE
I've done a ton of work with the DS18B20s on a...

I've done a ton of work with the DS18B20s on a OneWire network up to and including writing my own OneWire Code to save space on the microcontroller. My code is WAY less abstracted than trying to...
Forum: For Sale 04-15-2013, 06:32 PM
Replies: 23
Views: 2,631
Posted By ChemE
3/16" wide, sounds like there will not be very...

3/16" wide, sounds like there will not be very much end grain available for your beer. Based on what I've read that means it will take a very long time to get full interaction which is why the...
Forum: DIY Projects 04-14-2013, 08:56 PM
Replies: 17
Views: 4,164
Posted By ChemE
It is true that 5 gallons of water has quite a...

It is true that 5 gallons of water has quite a thermal mass. One has to either add or remove 43,966 Joules of energy to change the temperature of five gallons of water 1°F. So let's use the worst...
Forum: DIY Projects 04-14-2013, 04:51 AM
Replies: 17
Views: 4,164
Posted By ChemE
I hear you on the not getting to do real...

I hear you on the not getting to do real engineering for a living! The only time I really get to use my training is for my various mad scientist hobbies. At least selling out pays well!

My...
Forum: DIY Projects 04-14-2013, 04:19 AM
Replies: 17
Views: 4,164
Posted By ChemE
I don't know the dimensions of your inside box so...

I don't know the dimensions of your inside box so I just assumed 24"x36" and 24" tall. With a thermal conductivity of the foam of 0.018 BTU/hr ft² °F ft and neglecting the insulative value of the...
Forum: For Sale 04-11-2013, 08:31 PM
Replies: 23
Views: 2,631
Posted By ChemE
I bought a pretty good amount from Rockler. How...

I bought a pretty good amount from Rockler. How much are you looking for? I can dip into my personal stash if you don't want to fool with Rockler.
Forum: DIY Projects 04-02-2013, 06:36 PM
Replies: 99
Views: 17,718
Posted By ChemE
The OneWire protocol has been looking a little...

The OneWire protocol has been looking a little portly to me for a while now so I went one step further with it and rewrote all the read_bit, read, write_bit, write, and reset functions to twiddle...
Forum: DIY Projects 04-02-2013, 03:53 AM
Replies: 99
Views: 17,718
Posted By ChemE
I came across Atmel AVR4027: Tips and Tricks to...

I came across Atmel AVR4027: Tips and Tricks to Optimize Your C Code for 8-bit AVR Microcontrollers (http://www.atmel.com/Images/doc8453.pdf) and applied what I could to my fermentation monitor code...
Forum: DIY Projects 04-01-2013, 12:19 PM
Replies: 99
Views: 17,718
Posted By ChemE
Good to know that you've got at least some code...

Good to know that you've got at least some code for it. I found an EtherShield libraray which it seems like is the most developed/functional for that chip. I'm hoping between the datasheet and the...
Forum: DIY Projects 03-31-2013, 06:06 PM
Replies: 99
Views: 17,718
Posted By ChemE
Has anyone on this thread ever fooled around with...

Has anyone on this thread ever fooled around with the ENC28J60 based cards as opposed to the Wiznet w5100 based cards? The price of these things on eBay is rather insane! I just picked up three for...
Forum: DIY Projects 03-25-2013, 10:44 PM
Replies: 99
Views: 17,718
Posted By ChemE
Overkill is my very favorite flavor of kill!

Overkill is my very favorite flavor of kill!
Forum: DIY Projects 03-25-2013, 10:24 PM
Replies: 99
Views: 17,718
Posted By ChemE
First of all bravo Sir! ANY project which takes...

First of all bravo Sir! ANY project which takes 36 temperature sensors must be chocked full of win! Just making sure but you do know that writing STARTCONVO onto the OneWire bus makes all the...
Forum: DIY Projects 03-22-2013, 01:17 AM
Replies: 99
Views: 17,718
Posted By ChemE
Yeah, ±0.5°C (±0.9°F) isn't nearly precise enough...

Yeah, ±0.5°C (±0.9°F) isn't nearly precise enough for me. A 12-bit reading still only reads to the nearest 0.1125°F which really means that I should only be reporting temperatures to the nearest...
Forum: DIY Projects 03-21-2013, 09:58 PM
Replies: 99
Views: 17,718
Posted By ChemE
None at all. You'll just need to expand the 2D...

None at all. You'll just need to expand the 2D sensor array to hold the extra roms and add some extra sensor names. Then in int main() you'll need a few extra

int16_t rawTemperature2 =...
Forum: DIY Projects 03-21-2013, 04:29 PM
Replies: 99
Views: 17,718
Posted By ChemE
Agreed! I wonder what a blackbelt in C/C++ could...

Agreed! I wonder what a blackbelt in C/C++ could pull off. I bet I'm doing a lot of stuff stupidly but C is like my 4th programming language. Still now there is TONS of room left to do cool stuff...
Forum: DIY Projects 03-21-2013, 03:26 PM
Replies: 99
Views: 17,718
Posted By ChemE
Über Compact Ferm Monitor

Cosm feed of this code (https://cosm.com/feeds/102607)

Okay, I'm declaring victory! I'll probably keep tinkering a little just for my own enjoyment, but I have already slashed 86% of the sketch...
Forum: DIY Projects 03-20-2013, 04:00 AM
Replies: 99
Views: 17,718
Posted By ChemE
Okay, here is OneWire and DallasTemperature...

Okay, here is OneWire and DallasTemperature mashed together and brutally optimized. I've removed every feature. No parasite mode (that is easy to add back), no CRC checks, no 10 bit temperatures. ...
Forum: DIY Projects 03-19-2013, 10:40 AM
Replies: 99
Views: 17,718
Posted By ChemE
Sure am glad I didn't post that code. I've...

Sure am glad I didn't post that code. I've learned a few more tricks and now have code which polls two sensors every 5 seconds that only consumes 932 bytes of sketch size and 23 bytes of SRAM. The...
Forum: DIY Projects 03-17-2013, 04:11 PM
Replies: 99
Views: 17,718
Posted By ChemE
I tinned my three leads from my sensor cable and...

I tinned my three leads from my sensor cable and plugged those tinned ends directly into the top of my ethernet shield. I too didn't want to solder the bottom of the Uno and risk screwing it up with...
Forum: DIY Projects 03-05-2013, 02:16 AM
Replies: 99
Views: 17,718
Posted By ChemE
Now that you mention it I see it. My brain...

Now that you mention it I see it. My brain looked at the bottom view and immediately thought I was looking top down thus the switch. The isometric view is more clear to me regardless. I finished...
Forum: DIY Projects 03-03-2013, 08:52 PM
Replies: 99
Views: 17,718
Posted By ChemE
My DS18B20s seem to have their power and ground...

My DS18B20s seem to have their power and ground switched compared to what you published which I know came from the spec sheet which is strange. When I followed your diagram they get blazing hot a...
Showing results 1 to 25 of 500

 
Forum Jump