HardLabs

Central

mohamed1920said·Greenhouse_edge_AI·PCB/central/central.kicad_pcb

Central PCB layout, top view — open source ESP32 board by mohamed1920said

About the Central PCB

Central is an open source ESP32 PCB design by mohamed1920said, published on GitHub. It is a 2-layer board measuring 101.7 × 127 mm, with 13 components from 9 distinct parts.

Its main chip is the ESP32-S3-DEVKITC-1U-N8R8, from the ESP32 family.

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

From the project

This repository is an experimental greenhouse monitoring and control project built around an ESP32-class controller. It combines environmental sensors, relay-driven actuators, MQTT/Node-RED connectivity, over-the-air updates, persistent setpoints, and an Edge Impulse anomaly mode

This repository is an experimental greenhouse monitoring and control project built around an ESP32-class controller. It combines environmental sensors, relay-driven actuators, MQTT/Node-RED connectivity, over-the-air updates, persistent setpoints, and an Edge Impulse anomaly model. It also contains the project's firmware history and KiCad hardware designs.

The project is a prototype, not a finished safety controller. The firmware and PCB directories contain several generations with different assumptions. Start with code section/final/final.ino for the most integrated implementation, then…

Central bill of materials (BOM)

13 components, 9 distinct parts.

QtyPartRefs
1
ZC362800_
BH1750
1
AM2302
DHT22
2
ESP32-S3-DEVKITC-1U-N8R8
ESP32#1, ESP32#2
4
RT314A05
FAN1, HEATER1, HUMIDIFIRE1, PUMP1
1
GROW_LIGHT
K5
1
Screw_Terminal_01x02
POWER1
1
HLK-5M05
PS1
1
HLK-5M12
PS2
1
SEN-13322
SOIL_MOIST1

Central design files

The KiCad project lives in the mohamed1920said/Greenhouse_edge_AI repository on GitHub; these links point at the commit this page was built from.

Central: common questions

What microcontroller does the Central use?

The Central is built around the ESP32-S3-DEVKITC-1U-N8R8, from the ESP32 family.

How big is the Central PCB?

The Central measures 101.7 × 127 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Central?

13 components, from 9 distinct parts. The full bill of materials is listed on this page.

Where can I download the Central design files?

From the mohamed1920said/Greenhouse_edge_AI repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.

Can I use the Central design in my own project?

The repository has no license, so all rights stay with mohamed1920said. Use it as a reference, and ask the author before reusing the design.

Can I test firmware for the Central 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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