Diamond Mini Mobile Glucose Meter

Notes regarding the Diamond Mini DM30b meter from Fora

The test unit for this was supplied with firmware version 1.2.4, future versions may differ. It is supported by xDrip as of June 6th 2018 nightly.

Pairing

According to the manual for this meter, Bluetooth pairing is accessed by turning the meter on using the recessed Set button on the back of the meter (using a paper-clip) and then stepping through the menus by repeatedly pressing the Set button until PAR appears after the AL4 menu item and then pressing the Action button.

On my meter this PAR menu is completely missing. Instead I had to follow the procedure below to pair the meter:

• Turn meter on by pressing the Action button
• Repeatedly press the Action button to step through previous readings until it says END and then OFF as soon as you see OFF appear, press and hold the Set button using a paperclip until you see the blue light flashing on the front. Now quickly use xDrip to scan and connect to the meter. You must have at least 1 glucose reading already stored in the meter.

Limitations

This meter in my opinion is not fully compliant with the Bluetooth Glucose meter standards. One of the main features which is missing is access to the internal clock. This means we cannot tell if the meter clock is incorrect. We have to trust the time-stamps presented by the meter.

What this means is that you must ensure the meter clock is maintained accurately and especially during transitions to/from daylight saving time or your glucose results will appear in the wrong position in xDrip.

Also keep an eye on the clock that it may drift by a few minutes over extended usage. To set the clock follow the procedure described in the manual.

General design notes

This meter also presents data with the sequence numbers reversed meaning special work-arounds are needed in the code. If the manufacturer changes this in a future firmware version then the code may also need to be adjusted again. If you have one of these meters which is not working correctly with xDrip please contact me and we can examine what may have changed.

Additionally the meter displays a sad face emoji when glucose levels are out of range. This in my opinion is a design mistake because it can have the effect of psychologically shaming a diabetic by presenting a number as "bad". This can discourage testing which is the exact opposite thing that a glucose meter should be doing.

If any meter manufacturers would like me to integrate support to xDrip for their meter or appraise the technical implementation of their bluetooth support etc, feel free to get in touch.