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Revision history

This page is made to show which previous versions have been made. It gives you an idea where we came from, what we changed and what worked and what didn't. Entries are listed from new to old.

Development board 2.1 (DB2.1)โ€‹

development board 2.1

Well documented, easy to contribute PCB, ready for tests and improvements!

ItemDescription
๐ŸŒˆ CodenameBlue
๐Ÿ“† Release dateMarch 2022
๐Ÿฆ„ PeopleJure Vidmar and Jerry de Vos
๐Ÿ”— Source filesCan be found here
โŒš Development time1 months
๐ŸŽ‰ The Good- KiCad documentation
- Mounts for LED test
๐Ÿ‘น The Bad- Board requires a computer to work

Schematics, pinout, Bill of Material, Technical drawing
Build instructions

Development board 2.0 (DB2.0)โ€‹

development board 2.0

Proper version of the breakout board, with Arduino!

ItemDescription
๐ŸŒˆ CodenameBeige
๐Ÿ“† Release dateJune 2021
๐Ÿฆ„ PeopleJure Vidmar and Jerry de Vos
๐Ÿ”— Source filesCan be found here
โŒš Development time3 months
๐ŸŽ‰ The Good- Good debugging, like the logic analyzer actually plugs directly in
- Proper schematics
๐Ÿ‘น The Bad- Marking on the PCB can be better
- Board required a computer to work

Schematics, pinout, Bill of Material, Technical drawing
Build instructions

Breakout boardโ€‹

breakout board

Small version of the development board 1

ItemDescription
๐ŸŒˆ CodenameBreakout board
๐Ÿ“† Release dateNovember 2020
๐Ÿฆ„ PeopleJerry de Vos
๐Ÿ”— Source filesCan be found here
โŒš Development time4 months
๐ŸŽ‰ The Good- Compact shape, but 0806 components
- Board breaks in half and can be stacked
- ADC controls demultiplexer
- Decicated mosfets and demultiplexer for LEDs
๐Ÿ‘น The Bad- No stable 5v
- Opamp not connected to ref voltage
- Ref voltage lines switched
- Difficult to debug
- Bad schematics

Development board 1.0 (DB1.0)โ€‹

development board 1.0

First printed circuit board with the sensor side the same as the ReReMeter, but added connections for the Raspberry Pi and a ESP32. Used bigger 0806 SMD components

ItemDescription
๐ŸŒˆ CodenameAqua
๐Ÿ“† Release dateApril 2020
๐Ÿฆ„ PeopleJerry de Vos
๐Ÿ”— Source filesCan be found here
โŒš Development time6 months
๐ŸŽ‰ The Good- Separation between sensing and processing
- Bigger components, easier to solder
- Testpads for debugging
- Fool proof assembly
- Qwicc connector to easily add display
๐Ÿ‘น The Bad- Missing button for interaction
- Bad schematics

ReReMeterโ€‹

reremeter

The Plastic Scanner project started out as a fork of the ReReMeter. The ReReMeter already contains most of the critical parts of the Plastic Scanner, It is an STM32 based board that can flash infrared LEDs sequentially and measure the reflectance with an InGaAs sensor.

ItemDescription
๐ŸŒˆ CodenameReReMeter
๐Ÿ“† Release dateDecember 2019
๐Ÿฆ„ PeopleArmin straller and Bernhard Gessler
๐Ÿ”— Source filesCan be found here
โŒš Development time6 months
๐ŸŽ‰ The Good- Board was small and compact
- Good enough to prove principle and write a paper about
๐Ÿ‘น The Bad- Board was difficult to replicate due to the small 0402 components.
- Board required a computer to work