Difference between revisions of "ISpindel"

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== Iterations ==
 
== Iterations ==
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* [[ISpindel/iteration1|Version 1, Purple PCB, Techinc Logo]]

Revision as of 08:43, 20 June 2022

Projects
ISpindel Fred KWBG (1).jpg
Participants Einnor, Justa, Sikkepitje
Skills soldering, brewing, PCB Design
Status Active
Niche FoodHacks
Purpose Fun

iSpindel

iSpindel DIY continuous hydrometer, for measuring the realitive gravity / density of wort. Meant as an educational project for KWBG. We created footprint for the various parts on the PCB. These can be found in the /libs dir in the repo. Furthermore we replaced the reset switch with a reed switch so you can use a magnet to reset the iSpindel without opening the container.

Why Bat43???

It seems to me that the selection of the diode to be a schottky is a critical one here! According to the datasheet, the min. Input Low Voltage must be < 0.25×VIO while the Output Low Voltage is up to 0.1×VIO. Therefore, this leaves 500mV where the BAT43 will drop around 300mV or more. So a regular silicium diode will fail in this setup! Using a BAT43 or better is a requirement so to speak.

found here [iSpindel/issue/59]

Previous work:

Look also here: github.com/techinc/ispindel_kicad

Top ispindel.png Bottom ispindel.png

Subpage Dutch user documentation for setting up iSpindel with dataservices

TODO-List:

  • Cleaned PCB repo (first version: Einnor)
  • Pannelization test (Einnor)
  • Reed-switch test/rework (Einnor)
  • Footprint Battery Holder with sliding pads (Einnor)
  • Footprint D1-Mini 8-pin version (justa) Done by Einnor
  • Petling bottles order (justa) Done, 20220608. 10 pieces
  • Online-service (ubidots?) uitzoeken/selecteren (sikkepitje)
  • Order more parts (Einnor + Justa)
  • Test whole setup on a breadboard
  • setup a mailing list! 😁 (Justa) Done: beernerds@lists.techinc.nl


Ordered stuff

Arrived

  • 10 Petling's (justa)
  • 2 GY521 Gyro's (justa)
  • 1 TP4051 (justa)
  • 1 Wemos D1-Mini (justa)
  • 2 Battery-holders (justa)

In progress

  • PCB's (einnor)
  • 20 BAT43's (justa)
  • 2 SMD-reed-switches (justa)

Iterations