… in the form of small boxes 😉
… could be answered now.
Actually even three:
… it continues!
Since yesterday evening, I now wear a prototype, based on the 0.2.0 blueReader Board! Why not 0.2.1? Because there is still something wrong: / but we will get to this in the next days, probably only a Diode was put the wrong way onto the mainboards.
Since we were still waiting for the batteries and the transmitter coils, I had to use a conventional USB charger and a larger battery i had in stock.
On the last picture, you can see the bulge of the big battery on the right, and you can see that the battery adds 1.5cm in width. Also the charger can be see, and how it doubles the height of the board!
Since I do not want to pour this prototype in silicone yet, the antenna is glued on a strip of plastic and is already flexible!
Overall, despite the large battery and the additional charger, the prototype is significantly lighter and smaller than the one I had worn so far. The previous one was built with the Adafruit BLE uart friend, Adafruit Lipo Charger, a bm019 module and a 240mAh lipo.
In addition, I was able to cut the power consumption by 50% again! Below 1.5mAh, the system now consumes, despite it is permanently connected to the smartphone and maintains an encrypted connection. If we find the error on the 0.2.1 boards, the standby current might even drop to 0.6mAh!
Furthermore, the stability of the connection is significantly better as it was with the unencrypted prototype. If I remove the mobile phone from the about 3m reception Radius of the new prototype and then enter it again, the connection is again immediately rebuilt! This is an enormous plus in comfort. So far I had under Android always the problem, whenever I lost reception, I had to search again from within xDrip for the Prototype, which was very annoying, because the Adafruit module ranged only about 1m…
Now I’m curious how long the battery will last and what conclusions I can derive from the data for the blueReader.
The test settings are currently: Every 5 minutes, half of the sensor data is read and a LimiTTer compatible value gets calculated from the data and sent to xDrip.
I hope that this prototyp will last 4 days with one charge of the large battery, even if I’m not sure about how healthy the battery is, since it has deep discharged already a few times …
How does it go from here?
So far so good 🙂 Let’s see what happens next…
Small happy update:
The average energy consumption has fallen to 3.08mAh 🙂
So that would be at least 32h operational time!
It goes on and on 🙂
Here is a new update!
What happened since the last entry?
So everything goes on, even if I currently have less to report on the progress here 🙂
Maybe I can give the next update surprisingly within the next, if all parts get delivered and works as intended!