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.
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!
|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.
|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|
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