I am looking for volunteers to test a temperature data logger as follows:
I have had a number of requests to provide facilities to interface digital multimeters, reading roast temperature data, to the Coffee Roast Database.
This is a complex task for many reasons and I have made a start by writing a data logger which is intended to read up to two digital multimeters with suitable serial or usb interfaces and log the results.
This data logger can be used as a stand alone program and can save logs to a comma separated value file for reading and graphing in any spreadsheet program. It has facilities to log the data at intervals between 5 seconds and 60 seconds and to record specific roast stages for loading beans, first crack start and end, second crack start and eject beans.
The data logger already has the interface needed to supply the resulting data in real time to the Coffee Roast Database.
As this is such a difficult task considering the number of different operating systems and multimeters that could be used I wish to test the program in the real world. If sufficient people test the program successfully I will modify the Coffee Roast Database to accept the input from this data logger and make both available on my website.
At this stage I want to control this beta issue of the data logger so I prefer to email the program to volunteers. I would be grateful if any volunteers would send me there email address (to green_bean@ntlworld.com) and I will send them the program and some instructions to help them get started. All I ask is that they try to get it working with their equipment and let me know the outcome.
The compressed zip archive is only 384 KB in size.
I have tested the program on the following so far:
Maplin Precision Gold NF56U Multimeter with USB interface (this is a rebadged All-Sun EM6000)
Windows Vista, Windows XP, Linux (Kubuntu 8.10), OSX Leopard
The Java Runtime Environment (JRE) 6 or above, correctly installed, is required.