12V Controller PCB for CanGrow firmware
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CanGrow 12V PCB

CanGrow_PCB_Front.png

Motivation

I havn't found an already existing grow controller project within the ESP / Arduino Core eco system which met my personal requirements. Those are an easy DIY, using low cost parts, Arduino Core sourcecode to hack own things together, having a WebUI, grab some Metrics for monitoring, standalone and my very special need that the Hardware should run completely with 12V.

This repository hosts the KiCad files for the 12V PCB

BOM

Reference Value Qty DNP
C1 10nF 1
C2 100µF 1
C3 10µF 1
C4,C5 100nF 2
C6 47µF 1
D1,D2 D 2
D3,D4,D5,D9 LED 4
D6,D7,D8 D_Schottky 3
Q1,Q2,Q3,Q4 IFRZ44 4
Q5,Q6,Q8,Q9,Q11,Q12 BC337 6
Q7,Q10,Q13 BC327 3
R1,R3,R8,R10,R11,R13 10k 6
R2,R4,R9,R12 100k 4
R5 470k 1
R6,R7 1M 2
R14,R15 4.7k 2
R16,R17,R18,R19 1k 4
R20,R21,R22 100 3
U3 WeMos_D1_mini 1