---
title: "Hardware"
date: 2025-01-24
draft: false
description: "The Hardware"
tags: ["esp32", "hardware"]
---

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  <img src="pcb_front.png" class="grid-w50" />
  <img src="pcb_back.png" class="grid-w50" />
{{< /gallery >}}

<!-- TODO: Add new screenshots of the modular PCB setup -->

{{< gitea server="https://git.mannheim.ccc.de/" repo="C3MA/PlantCtrl" >}}

## Modular Design
The PlantCtrl hardware has been redesigned from a single large PCB into a more flexible, modular system. This allows users to only build or use the components they actually need for their specific setup.

The system now consists of a **MainBoard** which acts as the controller and several pluggable or connectable modules.

## MainBoard (ESP32-C6)
* **Processor:** ESP32-C6 (RiscV)
* **Connectivity:** WiFi, Bluetooth, Zigbee/Thread support
* **Form Factor:** Compact main board with headers for modules
* **Fully Open Source:** Designed in KiCad

## Available Modules
* **MPPT Charger:** Efficient solar charging for batteries.
* **Pump Driver:** High-current outputs for pumps and valves.
* **Sensor Interface:** Support for multiple moisture sensors.
* **Light Controller:** For LED nightlights or growth lights.

## Capabilities
* **Moisture Sensors:** Supports multiple capacitive or resistive sensors via expansion modules.
* **Pumps/Valves:** Support for multiple independent watering zones.
* **Power:** 
    * Solar powered with MPPT
    * Battery powered with optional Battery Management (Fuel Gauge)
    * Can also be used with a standard power supply (7-24V)
* **Efficient Power:** Use of high-efficiency DC-DC converters for 3.3V and peripherals.

## Made with:
<a href="https://www.kicad.org/">
  <img class="lazy" src="kicad_logo_small.png" alt="Image">
</a>