Monday 30 September 2019

E2B v1.B6 released


Changes from v1.B5:
  • Bugfix - Easy2Boot download self-extracting exe no longer adds the Make_E2B.exe program into the Windows Start Menu
  • Bugfix - SWITCH_E2B.exe v1.1.25 - if C: drive compressed/encrypted will still work after warning
  • Improve SIZE_E2B and SIZE_HD1 values to nearest GiB instead of nearest 4GiB.
  • Licence readme files added for 3rd-party s/w - see \_ISO\docs\Licenses
  • E2B now checks for 2019-08-09 version of grub4dos 0.4.6a or later
  • MyPwd.g4b added to Sample mnu Files\E2B folder to show example of how to prompt for a master password and have different wallpapers when asking for password
  • Latest grub4dos (allows animation to play during user input, adds grub4dos 'setmenu --keyhelp-on and --keyhelp-off commands)
  • KBD_DVORAK_USA.g4b keyboard translation file added (thanks to Alex R).
  • Latest version of RMPartUSB.exe
  • menu.lst changed to fix first frame of animation graphics being displayed just before Main menu (due to new grub4dos)
  • ArchiveOS link added to \_ISO\docs\Download URLs folder.
  • Change to \_ISO\e2b\grub\bsd.imgptn to fix bug of not booting if located past 2GB on drive (thanks to James for reporting and extensive testing!)
  • .isogrub file extension now directly loads \menu.lst if it exists (for all-in-one Acronis ISOs, etc.).

Download from Alternate Sites.

It will be available on FossHub in a few days.

The XJW01 LCR (0.3% accuracy) YouTube video is now uploaded

XJW01 LCR Bridge Meter


Hutale 4.2 LCR-DDS-F meter: LCR ESR Bridge Meter / DDS Function Generator / Frequency Meter



Another interesting LCR Bridge (without any case or 5V power supply) which has approx the same accuracy can be found here. Contact the developer - price is around 60 Euros delivered.

I have not tested this yet but it can also measure Frequency and be used as a frequency generator too!

Sunday 29 September 2019

English User Manual for the XJW01 LCR Bridge

I have spent a lot of time testing, experimenting and then writing this User Manual. I hope it is useful to the owners of this very useful XJW01 Bridge which comes in two case styles (as a kit or ready-made).
Type 2 Mains powered

Type 1 for external power source

Many owners have had difficulties with these, mainly because if you press the wrong button you can destroy all the preset calibration values without warning! With one button press, you can also overwrite the factory preset calibration values. This manual explains how to avoid this pitfall and other gotchas!

Once you understand how to use it, it is a very useful piece of kit.

You can now download my PDF manual from here for a modest fee.

The PDF also includes an example front panel template with the correct (or at least more easily understood) button labels.



    Table of Contents

    Saturday 28 September 2019

    Getting to know the XJW01 LCR Bridge

    I was looking for an accurate LCR Bridge recently which could also measure ESR values of capacitors.

    I also wanted a low-voltage LCR so that I could test components whilst they were still on the PCB without exceeding any diode/transistor junction voltages and thus get false readings.

    The XJW01 LCR bridge seems to be quite good and inexpensive. It is sold on many sites including eBay, Amazon and Ali Express.


    Thursday 26 September 2019

    E2B v1.B6e with .isoBSD bugfix

    James reported a problem when using the .isoBSD file extension with E2B (flashing cursor on boot).

    This file extension can be used to boot to FreeBSD and other BSD-based ISOs which are otherwise difficult to multi-boot from.

    http://www.easy2boot.com/add-payload-files/freebsd/

    The .isoBSD file extension actually uses E2B's \_ISO\e2b\grub\bsd.imgptn (fat12 disk image) file together with the original BSD ISO file to create two new partitions on the E2B drive.

    The Beta version 1.6Be ('Latest Beta' folder) has a modified version of the bsd.imgptn file which fixes the issue.

    If you are interested in more details, visit the thread at reboot.pro.



    Tuesday 24 September 2019

    Boot KDE Neon with persistence from an ISO

    Here is the .mnu file for booting KDE Neon with persistence.


    It is essentially the same as the Ubuntu persistence .mnu file except that it loads the kernel file /casper/vmlinuz instead of vminux.efi (which does not exist in KDE Neon).

    Sunday 22 September 2019

    How I fixed the HP "incompatible ink cartridges' error


    So, as you all know, HP and various other printer manufacturers sell their bottom-end printers at a loss. They often come with a 'starter pack' of ink which lasts long enough to print a few test pages and then the printer driver refuses to print any more until you buy some more ink.

    However, when you try to buy more ink, you find that a black+tricolour cartridge set costs more than the printer did in the first place!

    This is the well-established 'Razor and blades' tactic - you sell the razor at a loss but make a regular income from selling the blades.

    To top it all, the firmware in my old printer does all it can to ensure that you only use 'compatible' (HP) ink cartridge replacements. However, in 2017 the Supreme Court in the USA (Impression products Ink Inc. v. Lexmark) frowned upon this practise. Since that court case, some manufacturers now provide firmware updates to 'unblock' their printers and more recent printers don't usually block refilled cartridges.

    Monday 16 September 2019

    E2B v1.B6c Beta now available

    Download v1.B6c


    Changes from  v1.B5 (changes for v1.B6c in bold):

    • SWITCH_E2B.exe v1.1.25 - bugfix if C: drive compressed/encrypted will still work after warning user
    • Improve SIZE_E2B and SIZE_HD1 values to nearest GiB instead of nearest 4GiB
    • Licence readme files added for 3rd-party s/w - see \_ISO\docs\Licenses
    • Easy2Boot download self-extracting exe no longer adds the Make_E2B.exe program into the Windows Start Menu
    • Now checks for 2019-08-09 version of grub4dos 0.4.6a or later
    • MyPwd.g4b added to Sample mnu Files\E2B folder to show example of how to prompt for a master password and have different wallpapers
    • Latest version of grub4dos (allows animation to play during user input before E2B menu is displayed  and supports the new grub4dos 'setmenu --keyhelp-on' and 'setmenu --keyhelp-off' commands)
    • KBD_DVORAK_USA.g4b keyboard translation file added (thanks to Alex R).

    Thursday 12 September 2019

    Which is the best digital multimeter?

    I hope this blog will help you to quickly find the meter you are looking for without wasting hours on YouTube or Google as I have just been doing!

    The EEVBlog BM235

    Monday 2 September 2019

    E2B v1.B6b Beta available

    This v1.B6b Beta version has some GPL licensing text files and licensing information added. The E2B download contains some bundled GPL utilities which require me to add these text licence files.

    I have added MyPwd.g4b to the Sample mnu Files\E2B folder to show an example of how to prompt for a master password and display different wallpapers. e.g.

    1. Displays an 'Enter password' 800x600 wallpaper (the example file just uses an existing E2B background')
    2. User types in a password
    3. If good, displays the wallpaper you want for the main menu
    4. If bad pwd, display an alternate wallpaper (could say 'bad password - please re-enter')
    5. If good pwd then display Main menu

    You can overwrite the wallpaper with any stamp by adding a splashimage --offset command (use 0x00=opaque or 0x80 for transparent background, e.g.

    splashimage --offset=0x00=680=10 /_ISO/pwdOK.bmp

    You can thus choose to keep the same background and just display a different small STAMP instead of changing the whole wallpaper. If the STAMPS overwrite each other but are not the same size, you will need to reload the original wallpaper and then apply the STAMP.



    !BAT
    # This can be called from MyE2B.cfg or \_ISO\MAINMENU\$$$$CONFIG\$.mnu using  'call /_ISO/MyPwd.g4b'
    # copy it to \_ISO folder of E2B drive and then edit it as required