2 layers90 × 112 mm
2 layers100 × 95 mm
HydroNode Mini
donnahs/microtool-forgeMatt/NOVA project: microtool-forge
- Size
- 100 × 95 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 14
- Nets
- 10
- Pads
- 53
- Tracks, vias
- 0, 0
- Routed
- Not yet
- KiCad
- KiCad 7 (file 20221018)
- Created
- 19 Jun 2026
- Updated
- 19 Jun 2026
Overview
HydroNode Mini is an open-source printed circuit board by donnahs, from the donnahs/microtool-forge repository on GitHub. It is a 2-layer board of 100 × 95 mm with 14 parts on 10 nets.
It is built around the ESP32-C3-DEVKITM-1. Its parts include 8 connectors and 1 IC. It belongs with the ESP32 and RISC-V boards of this library.
Main components
1README
pcb-kicad-starters/Photo-Light-Controller/README.mdProduct Photo Light Controller — KiCad Starter Spec
Purpose
USB-C powered LED strip dimmer for marketplace product photo boxes.
Blocks
- USB-C 5V power input footprint
- Reverse polarity / fuse placeholder
- Potentiometer input
- 555/PWM or small MCU PWM option
- N-MOSFET low-side LED strip driver
- Screw terminal LED output
- Power LED
Design rules
- Low-voltage LED strips only.
- Thermal copper around MOSFET.
- Big knob footprint and enclosure mounting holes.
Parts
14| Qty | Value | Footprint | References |
|---|---|---|---|
| 4 | M3 | NOVA:MOUNT_M3 | H, H, H, H |
| 1 | 5V/GND IN | NOVA:TH_2P_5V/GND IN | J8 |
| 1 | DS18B20 TEMP | NOVA:TH_3P_DS18B20 TEMP | J1 |
| 1 | EC AOUT | NOVA:TH_3P_EC AOUT | J4 |
| 1 | ESP32-C3-DEVKIT | NOVA:TH_20P_ESP32-C3-DEVKIT | U1 |
| 1 | FLOAT SWITCH | NOVA:TH_2P_FLOAT SWITCH | J2 |
| 1 | I2C DISPLAY | NOVA:TH_4P_I2C DISPLAY | J5 |
| 1 | LIGHT OUT | NOVA:TH_2P_LIGHT OUT | J7 |
| 1 | PH AOUT | NOVA:TH_3P_PH AOUT | J3 |
| 1 | PUMP OUT | NOVA:TH_2P_PUMP OUT | J6 |
| 1 | TEST PADS | NOVA:TH_8P_TEST PADS | TP1 |
Questions
How big is the HydroNode Mini PCB?
It measures 100 × 95 mm and has 2 copper layers, 1.6 mm thick.
What parts does the HydroNode Mini use?
14 parts, built around the ESP32-C3-DEVKITM-1. The full list of its parts is on this page, with links to each part's symbol and footprint where PCBKit's library has them.
Where can I download the HydroNode Mini KiCad files?
From the donnahs/microtool-forge repository on GitHub, at the commit this page was made from: the board is pcb-kicad-starters/HydroNode-Mini/HydroNode-Mini.kicad_pcb. PCBKit opens the board in the browser, with nothing to install.
Can I use the HydroNode Mini design in my own project?
Its repository states no licence, so its author keeps all rights: ask donnahs before reusing the design.
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