Thursday, 8 July 2021

MicroAge App Privacy Policy

  Privacy Policy for MicroAge app on iOS and Android. 

  • The app does not send any information to MPD Bailey Technology
  • The app does not use analytics
  • The app does not store any information
  • No personal information is collected by the app

Monday, 17 August 2020

Privacy Policy

 Privacy Policy for Crossword Solver King app on iOS. 

In brief:

  • The app does not send any information to MPD Bailey Technology
  • Your searches / filters are completely private and are not stored or sent anywhere
  • The app does not use analytics
  • The app displays a banner ad from Google Admob
  • Google Admob may use an identifier to track you across various websites and apps
  • The app lets you decide if  Google Admob can sell any tracking information about you to third party advertisers.


You can send feedback to me via third-party email clients, I do not store any emails and I will delete them as soon as any issue is addressed. I do not store or pass on any information I receive from feedback emails and I will not send any unsolicited marketing.

Note that I use Yahoo! email service for my feedback, to find out more about Yahoo, an Oath company, see

Data Storage

The only information stored by the app, excluding Google Admob,  are the app settings which can be viewed from the main system settings app.


The app will display a banner ad provided by Google Admob. Google may use an identifier on your device to track you across various websites and apps. By tracking you, Google Admob can sell this information to advertisers and show relevant ads to you. 

When you first launch the app, the app will ask you whether you want to see relevant or less relevant ads. Choosing the less relevant option, the app will request to receive non-personalized ads. You can change you ad preferences any time in the About and Privacy section of the app.

For more information on how Google Admob uses your data, see

Monday, 25 September 2017

Wind Chime Wavelength Calibration

This post describes how to perform a wavelength calibration using Wind Chime. The methodology is the same as used on the 7205 UV Diode Array:

  1. A scan of the wavelengths from 198nm to 1000nm of the output of the Xenon lamp.
  2. The data is analyzed to find all the peaks in the scan
  3. These peaks are compared against a set of reference wavelengths
  4. If there is a match you can send the corrections to the Spectrophotometer

Press START SCAN to scan each wavelength from 198nm to 1000nm, this will take some time.

Progress is shown

Once done, enter your reference wavelengths. The app will already have populated the fields with default values, to remove a reference just delete the number.

Press ANALYZE, Wind Chime will find all the peaks in the scan and then attempt to find an overlapping match with the reference peaks.

The status will show the number of peaks found, here it is 16. To find more peaks, reduce the slope threshold, to find less increase the slope threshold. Press analyze to recompute.

If you don't get a match remove one of the more troublesome reference points and press analyze again.

Once you are happy press SUBMIT PEAKS, this will first send an ERASE CALPOINTS command to the spectrophotometer and then ADD CALPOINT commands for each of the reference/match pairs.

The spectrophotometer will store the calibration data in its onboard FRAM

Friday, 15 September 2017

Wind Chime v1.5

This releases sees two new screens, Photometrics and Alignment. There are also a few bug fixes and minor improvements. The navigation menu has now been divided up into categories to make it easier to find a particular function. Find Home command will now wait up to 100s before timing out.


Press blank to take a dark and blank reading, press sample to take a sample reading. You can change the wavelength from the wavelength screen, see below.

There is also a USB logging function that will log each sample to a file called photometrics.csv on an USB memory stick. Makesure you insert a USB stick before turning on logging and that when you finish, you turn off logging and unmount the drive (see my earlier post about removing USB sticks).


The wavelength screen has been revamped, there are now 2 presets for the stray light test.

Optics Alignment

The alignment screen is similar to he 73's alignment screen and has been designed for a engineer to aligned the optics.

The CALIBRATE ENDSTOP button will find the 0nm (white band) and store it in the PCB.

See the release notes for further details

Thursday, 7 September 2017

WindChime v1.4

New Features for version 1.4 of WindChime

  • Bootloader support
  • EMC Testing

Menu highlighted to show new screens
Note that you can update to v1.4 from v1.3 from within the app using the Update screen


Before using the bootloader functions, ensure you are first connected to the spectro. Note also that /dev/ttyO1 is now the default setting, however the app will remember your setting.

Currently the spectro is in Bootloader mode, press JUMP

The spectro is now in Application mode

In order to use the spectro, you will need to issue the jump command to put the Spectro into application mode.

Launch Settings

WindChime will launch automatically on boot up, you can set to connect automatically and send a jump instruction.

EMC Testing

The EMC Test screen will periodically send out the current date and time. You can either send to a printer or to a file on a connected USB memory stick. Note that if you are having problems with your USB memory stick please see How to safely eject a USB memory stick.

Ejecting USB Memory Stick

This post will describe how to safely eject a USB memory stick from the Bibby Beagle Bone Black android computer.

Follow these instructions incase you are having problems reading/writing to a USB stick.

Swipe down to reveal the notification drawer

Press the settings icon

Press the Storage option

Press Unmount shared storage

Press OK

You can now safely unplug your USB memory stick

Tuesday, 11 July 2017

Thor Burn In Program

Version 1.18.00 of Thor has a new program, Burn In, which will try to remove any moisture from the dual sensing probe. It does this by heating to various set point temperatures and waiting until the difference between the safety and block temperatures (drift) is below a certain threshold.

Starting Up

To access the burn in program, scroll the side bar to the bottom and select Burn In

Setting Up

Minimum Drift is the allowed temperature difference between the safety and block temperatures for the burn in program to continue to the next setpoint.

Time Out is the time allowed at one particular set point before the burn in program will give up waiting for the drift to come below the Minimum Drift.

Settling Time when the set point has been reached the program will wait a further amount of time before monitoring the drift

Set Points  Select which temperatures to test, 150, 200, 250, 300, 350, 400°C

Press start to start the program, once started you will not be able to change the settings.

Screen Shot

First ensure you have a USB memory stick inserted into the SMP50.

Press the menu key and press Screen Shot, this will capture an image of the screen and save it to the USB stick

This is useful for sending error reports or anomalous behaviour.

Report and Logs

The report screen shows the temperatures before and after the drift monitoring stage, and the time taken to complete the stage.

More useful is the log file, here temperatures and state are recorded every second. Insert a USB stick, and from the menu press Copy log file to USB.

Example of log output

14:25:00 250.0,250,25.0,Settling,Plateau
14:25:01 250.0,250,25.0,MonitorDrift,Plateau
14:25:02 250.0,250,25.0,Next,Plateau

Format for each row
Time block temperature °C, safety temperature °C, ambient temperature °C, burn in program state, heater state


The block temperature is accurate to 0.1°C, the safety 1°C, so expect the drift to flit about by 1°C.

The SMP50 firmware will go into an error state if the drift becomes greater than 15°C for several seconds. The burn in program will detect this error, cool for 10 seconds, clear the error and go back to the previous set point to try again.

The burn in program moves thru the following states

           (Press start)
           (Heater reaches Plateau)
           (Settling time is up)
           (drift is below the specified minimum)
           (Go to next setpoint and back to the Heat stage or Finished)

TimedOut state will occur if the time taken for the MonitorDrift stage goes over the specified Time Out setting

Error state will occur if the SMP50 reports an error, the Burn in program will cool and go back to the previous set point and resume the program from there.

Trouble Shooting

Stuck at a setpoint

The SMP50 may be stuck at at set point with a drift that does not decrease and will eventually Time Out.
1)Try a larger minimum drift value to allow the MonitorDrift stage to pass
2)Uncheck the set point

The idea here is to force the SMP50 to heat to a higher temperature, if the drift becomes too large the SMP50 will go into a error state which the Burn In program will detect, clear and return to the previous set point.

3) increase (at least double) the Settling and Time Out times to see if probe just needs more time

Drift is getting worse

The SMP40 kit I tested the program is nearly 10 years old. The Burn In program just made the drift worse, I suspect this is due to a faulty probe. However if the drift is becoming worse on new SMP50 units, stop using the burn in program. The solution to the problem will have to be rethought.