HardLabs

Thermalguard hat

olivierpetitjean·thermalguard-hat·kicad/project/ThermalGuardHAT.kicad_pcb

Thermalguard hat layout, top view — open source Raspberry Pi board by olivierpetitjean

About the Thermalguard hat

Thermalguard hat is an open source Raspberry Pi PCB design by olivierpetitjean, published on GitHub under the MIT license. It is a 2-layer board measuring 95.6 × 56 mm, with 35 components from 28 distinct parts.

Its main chip is the J1, from the Raspberry Pi family. Other key parts include the TXS0102DCTR, LM2596SX-5.0/NOPB, ACS71240LLCBTR-030B3, MCP3004 and SHT31-DIS. By type, the board carries 7 capacitors, 5 ICs, 4 diodes, 4 resistors, 2 connectors and 2 switches.

It belongs with the sensors, dev boards & breakouts and displays & leds designs in this gallery.

From the project

ThermalGuard HAT is a Raspberry Pi HAT for rack and enclosure monitoring, combining dual fan control, RPM tracking, temperature and humidity sensing, local data logging, and a web dashboard for live status and history.

ThermalGuard HAT is a Raspberry Pi HAT for monitoring and controlling airflow in a server rack or enclosed equipment bay.

This repository contains both the hardware design and the software stack:

- a custom KiCad HAT - a Python hardware service running on the Raspberry Pi - a .NET 8 API - an Angular web dashboard

https://github.com/user-attachments/assets/547ba5f1-9dda-4290-b39c-db074ba426f6

Thermalguard hat, from the project README
From the project README

Main components on the Thermalguard hat

TXS0102DCTRLM2596SX-5.0/NOPBACS71240LLCBTR-030B3MCP3004SHT31-DIS

Thermalguard hat bill of materials (BOM)

35 components, 28 distinct parts.

QtyPartRefs
1
TXS0102DCTR
IC1
1
LM2596SX-5.0/NOPB
LM2596SX-5.0
IC2
1
ACS71240LLCBTR-030B3
IC3
1
MCP3004
U1
1
SHT31-DIS
U2
1
Q_NPN_BCE
Q1
1
OLED LCD
J7
1
SHT_ADDR
J8
1
J10
EXT1
1
J1
FAN1
1
J2
FAN2
1
J1
GPIO1
1
CMI-1210-5-95T
LS1
1
DCJ200-10-A-XX-X_REVA
PWR1
2
PTS636 SK25J SMTR LFS
PTS636_SK25J_SMTR_LFS
S1, S2
1
J5
SENS1
1
J4
SENS2
1
j6
SYS_FAN1
2
SS34
D1, D2
1
RED LED
D3
Show 8 more
QtyPartRefs
1
GREEN LED
D4
1
33µH
L1
1
680µF
C1
1
APXE6R3ARA221MF61G
C2
5
1µF
C3, C4, C5, C6, C7
1
470
R1
1
10K
R2
2
220
R3, R4

Thermalguard hat design files

The KiCad project lives in the olivierpetitjean/thermalguard-hat repository on GitHub; these links point at the commit this page was built from.

Thermalguard hat: common questions

What microcontroller does the Thermalguard hat use?

The Thermalguard hat is built around the J1, from the Raspberry Pi family.

How big is the Thermalguard hat?

The Thermalguard hat measures 95.6 × 56 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Thermalguard hat?

35 components, from 28 distinct parts. The full bill of materials is listed on this page.

Where can I download the Thermalguard hat design files?

From the olivierpetitjean/thermalguard-hat repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.

Can I use the Thermalguard hat design in my own project?

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

Can I test firmware for the Thermalguard hat without the hardware?

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

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