Update History

11/11/07 Arbiter - New PCB layout
11/03/06 New building regs.
29/11/03 Surprise on my doorstep. A local estate with PV.
11/01/03 Hotbox   Version 2.12 Rebuilt using updated library
11/01/03 Display Version 2.23. FileOpen dialog failed under Windows 98 in version 2.22. Rebuilt using updated library
11/01/03 tmpsvc Version 2.12. Rebuilt using updated library
08/01/03 Hotbox   Version 2.11 Rebuilt using .NET Framework. If the communications port is not available, you are told about it explicitly; no more cryptic messages about comms threads failing to start!
08/01/03 Display Version 2.22. Rebuilt using .NET Framework. Painting bug in Delta dialog fixed. (Combo boxes failed to draw correctly when not selected.)
08/01/03 tmpsvc Version 2.11. Rebuilt using .NET Framework
05/11/02 Add photo page of Interior plumbing.
03/06/02 Improved description of DS1820 and DS18B20 Arbiter frames
21/05/02 Display Version 2.21. New features and bug fixes.
  • Faster file load time
  • Date / Time graticule added
  • Plots now have customisable width and border
  • Real Time Tracking (Display is updated with live data.)
  • Differential plot bug fixed.

The Display user manual is here.

21/03/02 Self Build Weekend
15/10/01 tmpsvc Version 2.10. Support for DS18B20 device
15/10/01 Hotbox   Version 2.10. Support for DS18B20 device
31/7/01 Heads Up! The higher spec DS18B20 is around. See logger page.
21/6/01 Sun Day 2001
15/5/01  Photo Voltaics - evaluation of 4 panels, and some research
31/12/00 Display   Version 2.20 A re-work of the x-axis time scale logic. Previous versions were limited to 31 days of data. This limit has been removed.
The day of the w
eek is now displayed, as well as the date.
"Day on Day" traces now clip at midnight boundary.
"Power Copy" added. This features eases the tedium of creating solar power reports. 
Horizontal scrolling now updates the date display.
(Use of the STL programming library that's what I'm into. This will make any future port to non Microsoft platforms easier.) 
17/12/00 Arbiter FAQ's added.
26/11/00 Display   Version 2.19. Dialog controls now position correctly if c:\hotbox\temp.log is missing!
14/11/00 The solar heated water controller code is released. (V2.08)
21/10/00 More commercial links added. 
09/07/00 Display   Version 2.18. Improve "day on day" display. SETI files in "day on day" mode will display solar days if Centigrade is set, sidereal days if Fahrenheit is set. (This is an interim bodge!)
01/07/00 Display   Version 2.17. Further support for SETI CSV files. SETI files in "day on day" mode will display successive probe colours to identify each day. 
20/06/00 Display   Version 2.16. Include support for SETI CSV files.
19/06/00 Display   Version 2.15. Resizing window fix. Add status report
04/05/00 Sol Calc Version 1.07. Improved error reporting in common library routines.
04/05/00 Hotbox   Version 2.08. Improved error reporting in common library routines.
04/05/00 Display  Version 2.14. Improved error reporting in common library routines.
04/05/00 Temperature Service 2.0.8 tmpsvc now displays its description under Windows 2000 Service Manager. Improved error reporting in common library routines.
22/04/00 The whole site gets a spring clean.
10/02/00 Updated Books.
7/01/00 Display  Version 2.13. Now reports date.
17/12/99 Sol Calc - Version 1.05. Sun Rise / Set fix.
15/12/99 Sol Calc - Version 1.04. Time Zone and Daylight Saving support added.
14/12/99 Sol Calc - See some paranoid source!
9/12/99 Sol Calc - calculates solar energy. Version 1.03 Solar spectrum display enhanced.
6/12/99 Display  Version 2.11 Bug fix "Pump On" signal truncation.
3/12/99 Sol Calc - calculates solar energy. Version 1.01
2/12/99 Sol Calc - calculates solar energy. First Cut.
2/12/99 Display can now display in Fahrenheit. Spelling! Version 2.10. Energy calculation allows for specific heat of "water" in loop.
24/11/99 Added Display User Manual. Version 2.07 Hotbox  and 2.07 tmpsvc. Hotbox and Display can now display in Fahrenheit. Version 2.09 of Display. Bug fixes and support for solar panel controller energy reporting, and temperature difference analysis.
12/11/99 Added Panel Power Report
9/11/99 Updates to Controller Design V2. Added power calculation page.
15/10/99 Updates to Controller Design, Solar and Links page
29/9/99 Added Controller Design page
23/9/99 Updates to Solar page. The actual plumbing "circuit" is now installed as per diagram.
22/9/99 Version 2.03 Hotbox  and 2.03 tmpsvc. Added trim. You can now set an offset to each probe for calibration.
16/9/99 Installing the Solar Panel. Some snaps of work in progress. 
6/9/99 Updates to Solar page.
31/8/99 Version 2.02 Hotbox  and 2.01 tmpsvc. Both exe and service now use common library code.
26/8/99 Version 2.00 of hardware and firmware. Now handles a maximum of 64 probes. (8 probes per single wire bus) New schematic and parts list posted. The frames from the DS1820 arbiter are the same as V1.XX
26/8/99 Version 2.01. Hotbox Creates the new version of temp.log file format. (Address field replaced by a probe ID.)
26/8/99 Version 2.01. Display. Uses the new version of temp.log file format. (Address field replaced by a probe ID.)
23/7/99 Version 1.06. Display. Choose custom colours for each trace! Handles up to 32 probes.
22/7/99 Updates to site. Take a peek at my lovely little pressure gauges.
21/7/99 Pressure conversion tweaked 1.01
16/7/99 Pressure conversion utility created
14/7/99 Links page updated
2/7/99 Add Links page
21/6/99 Version 1.05. Display. Rendering speed improved
21/6/99 Schematic and Parts List published
18/6/99 Version 1.04. Display. Scrollbars and Delta t added.
16/6/99 Version 1.03. Display. Reload now doesn't "restore".
14/6/99 Version 1.02. HotBox. Writes to c:\hotbox\temp.log with share.
14/6/99 Version 1.02. Display.  Reads from c:\hotbox\temp.log. UI tweaks.
11/6/99 Latest PIC source released.
10/6/99 Thermo Page published.