HardLabs

Breezy

Broosky·Breezy·KiCad/Breezy.kicad_sch

This repository ships a schematic but no board layout.

About the Breezy PCB

Breezy is an open source AVR/Arduino PCB design by Broosky, published on GitHub. It is a board, with 23 components from 18 distinct parts.

Its main chip is the Arduino Nano V3, from the AVR/Arduino family. By type, the board carries 6 resistors, 4 connectors, 4 diodes, 2 switches, 2 capacitors and 1 IC.

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

From the project

A temperature-triggered fan controller designed to improve airflow.

A temperature-triggered fan controller that automatically powers one or more box fans when the AC system is running. Designed to improve airflow through long corridors or distant rooms without requiring manual intervention.

Breezy supports multiple configurable automatic modes, along with a manual override that forces the fans on and bypasses automatic control. The goal is a "set it once and forget it" solution. The output stage supports loads up to 600W, allowing multiple fans or other devices to be controlled simultaneously.

Main components on the Breezy

Arduino Nano V3

Breezy bill of materials (BOM)

23 components, 18 distinct parts.

QtyPartRefs
1
—
U1
1
Arduino Nano V3
A1
1
2N3904
Q1
2
AC Input 120VAC / 5 A / 600W / 60Hz
J1, J3
2
AC Output 120VAC / 5 A / 600W / 60Hz
J2, J4
1
5V
K1
1
Manual Enable
SW1
1
Automatic Mode Select
SW2
1
10K
TH1
1
Power
D1
1
Monitoring
D2
1
1N4148
D3
1
Output Enabled
D4
1
100uF
C1
1
100nF
C2
3
470R
R1, R4, R6
2
10K
R2, R5
1
560R
R3

Breezy design files

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

Breezy: common questions

What microcontroller does the Breezy use?

The Breezy is built around the Arduino Nano V3, from the AVR/Arduino family.

How many components are on the Breezy?

23 components, from 18 distinct parts. The full bill of materials is listed on this page.

Where can I download the Breezy design files?

From the Broosky/Breezy repository on GitHub, which has the schematic; the links under Design files point to each one.

Can I use the Breezy design in my own project?

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

Can I test firmware for the Breezy without the hardware?

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

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