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Hydroponic veggie garden

Gregovate·hydroponic-veggie-garden·schematic/hydroponics_controller_esp32/hydroponics_controller_esp32.kicad_sch

This repository ships a schematic but no board layout.

About the Hydroponic veggie garden PCB

Hydroponic veggie garden is an open source ESP32 PCB design by Gregovate, published on GitHub under the MIT license. It is a board, with 28 components from 24 distinct parts.

Its main chip is the ESP32_30pin-DevKitC-32 ESP-WROOM, from the ESP32 family. Other key parts include the DS18B20, HX711, KEYESTUDIO TDS Meter Probe, Load Cell and Alternate Level Sensor. By type, the board carries 12 ICs, 11 connectors, 2 modules, 1 switch, 1 test point and 1 resistor.

It belongs with the iot & wireless and sensors designs in this gallery.

From the project

ESPHome-based controller for an outdoor hydroponics system with tank weight monitoring, flow sensors, relay control, and Home Assistant integration.

A modular hydroponic automation platform built around ESPHome, Home Assistant, Node-RED, and MariaDB.

The project has evolved from a simple monitoring controller into a complete hydroponic management system capable of:

Automated reservoir refill Automatic nutrient dosing EC monitoring and reference measurements Historical event logging Seasonal crop management Nutrient inventory tracking Dashboard-based operation Long-term production analysis

Main components on the Hydroponic veggie garden

DS18B20HX711KEYESTUDIO TDS Meter ProbeLoad CellAlternate Level SensorFlow EastFlow WestFlow Fill

Hydroponic veggie garden bill of materials (BOM)

28 components, 24 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
DS18B20
U1
1
HX711
U2
1
—
U3
1
KEYESTUDIO TDS Meter Probe
U4
3
Load Cell
U5, U7, U8
1
—
U6
1
Alternate Level Sensor
U9
1
Flow East
U10
1
Flow West
U11
1
Flow Fill
U12
1
Dose_A
M1
1
Dose_B
M2
1
12v -
J1
1
12v +
J2
2
RJ45
J3, J10
1
Power Input
J4
1
Flow Meters
J5
1
ADS1115 16 Bit 4 Channel I2C
J8
1
5v-16v in
J11
1
DC 12V Relay Module 4 Ch with Optocoupler Isolation & High/Low Level Trigger
J12
Show 4 more
QtyPartRefs
2
Conn_01x04_Pin
J13, J14
1
Water Fill Solenoid
SW1
1
EC Tank Probe
TP1
1
220
R1

Hydroponic veggie garden design files

The KiCad project lives in the Gregovate/hydroponic-veggie-garden repository on GitHub; these links point at the commit this page was built from.

Hydroponic veggie garden: common questions

What microcontroller does the Hydroponic veggie garden use?

The Hydroponic veggie garden is built around the ESP32_30pin-DevKitC-32 ESP-WROOM, from the ESP32 family.

How many components are on the Hydroponic veggie garden?

28 components, from 24 distinct parts, with part numbers taken from the project's own BOM. The full bill of materials is listed on this page.

Where can I download the Hydroponic veggie garden design files?

From the Gregovate/hydroponic-veggie-garden repository on GitHub, which has the schematic and the BOM; the links under Design files point to each one.

Can I use the Hydroponic veggie garden design in my own project?

Yes, under the terms of its MIT license, which Gregovate chose for the repository.

Can I test firmware for the Hydroponic veggie garden without the hardware?

Yes. HardLabs builds a simulation of the board from its netlist and BOM, so you can run and debug ESP32 firmware against it before you order a PCB.

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