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Created by lbussy on 2019-11-11 23:30:24

Description: This shield provides the necessary component connections and circuitry for the Brew Bubbles project. It is nearly identical in size to the Wemos D1 mini we use to provide a very compact and lightweight footprint.

Bill of Materials

General Parts

Since this uses 1 or 2 each of very common, very inexpensive components, you may find you are better off buying a resistor assortment for instance or end up buying 10 or 20 at a time. Make several!

Quan Description Placement
3 0.1μF 10V Ceramic Capacitor C1, C2. C3
*2 2.2kΩ 1/4W 5% Axial resistor R1, R2
1 150Ω 1/4W 5% Axial resistor R3
*2 3-Pin 90° Header VESSEL, ROOM
1 Sharp GP1A57HR Transmissive Photointerrupter U1

This BOM is available on Mouser via this link.

Other Parts

Quan Description Placement
1 Wemos D1 Mini R2 U2
2 8-pin male stackable header (nearly always comes with the D1)
2 8-pin female stackable header (nearly always comes with the D1)
*2 Waterproof DS18B20 Temperature Sensor with lead VESSEL, ROOM

Optional Parts

The items marked with an *asterisk above are optional. They are in the design to provide a means to monitor and trend one's ambient temperature where the fermenter is placed, and/or the fermenting liquid's temperature via a thermowell or insulated in contact with the fermenter. If one chooses not to use these, the firmware will automatically skip reporting these readings.

License: GNU General Public License v3.0
Project URL: https://www.brewbubbles.com
Board Revision: v1.0

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Board Images:

Top View - Complete Board

Top View - Complete Board

This is what your finished board will look like from the top.

Bottom View - Complete Board

Bottom View - Complete Board

This is what your finished board will look like from the bottom.

Board Outline

Board Outline

This shows the outline of your board, it will be cut to this shape.

Top Copper Layer

Top Copper Layer

This shows where the copper will remain after etching the top of the board.

Bottom Copper Layer

Bottom Copper Layer

This shows where the copper will remain after etching the bottom of the board. (mirrored)

Top Soldermask

Top Soldermask

This shows where soldermask will be applied on the top over the bare copper board.

Bottom Soldermask

Bottom Soldermask

This shows where soldermask will be applied on the bottom over the bare copper board. (mirrored)

Top Silkscreen

Top Silkscreen

This is the white print that will be printed on the top of the board.

Bottom Silkscreen

Bottom Silkscreen

This is the white print that will be printed on the bottom of the board. (mirrored)

Drill Holes

Drill Holes

This shows all the holes that will be drilled in your board.

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Accepts Eagle BRD Files or zip, tar, or tar.gz of Gerbers (more info)
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