6 layers54.6 × 57.1 mm
CM5 MINIMA 2
piecol/CM5_MINIMA_REV2
Compact, feature-filled CM5 carrier board
102 parts170CERN-OHL-S-2.0
2 layers33.3 × 66.1 mm
TempBoard
obobed/tempBoardmade by on the Hack Club Slack for the Hermes YSWS! (hermes.hackclub.com)
- Size
- 33.3 × 66.1 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 13
- Nets
- 24
- Pads
- 56
- Tracks, vias
- 70, 5
- Pours
- 1
- Routed
- Yes
- KiCad
- KiCad 8.0 (file 20240108)
- Created
- 26 Jul 2025
- Updated
- 20 Nov 2025
Overview
TempBoard is an open-source printed circuit board by obobed, from the obobed/tempBoard repository on GitHub, published under the GPL-3.0 licence. It is a 2-layer board of 33.3 × 66.1 mm with 13 parts on 24 nets, routed with 70 tracks and 5 vias.
It is built around the SHTC3. Its parts include 4 resistors, 2 ICs, 2 diodes, 1 capacitor and 1 connector. It belongs with the RP2040 boards of this library.
Main components
1README
README.mdTempBoard
A PCB that shows temperature and relative humidity on a 128x64px OLED screen using a SHTC3 sensor
Features
- An SHTC3 temperature and relative humidity sensor gets data about temperature and relative humidity
- OLED display that shows the data
- Indicator LEDs that light up when the temperature or humidity gets extreme
- A XIAO RP2040 microcontroller
Files
To program the XIAO RP2040, follow this guide and open this file in the Arduino IDE.
Schematic
PCB
BOM
- 1 100nf capacitor
- 2 4.7 k ohm resistors
- 2 220 ohm resistors
- 1 Blue LED
- 1 Red LED
- 1 SHTC3 Temperature and humidity sensor
- 1 128x64 px OLED display
- 1 XIAO RP2040
made by @obob on the Hack Club Slack for the Hermes YSWS! (hermes.hackclub.com)
Parts
13| Qty | Value | Footprint | References |
|---|---|---|---|
| 3 | LOGO | LOGO | G***, G***, G*** |
| 2 | 4k7 | Resistor_SMD:R_0805_2012Metric | R1, R2 |
| 1 | 100n | Capacitor_SMD:C_0805_2012Metric | C1 |
| 1 | 200 | Resistor_SMD:R_0805_2012Metric | R4 |
| 1 | 47 | Resistor_SMD:R_0805_2012Metric | R3 |
| 1 | LED_GREEN | LED_SMD:LED_0805_2012Metric | D2 |
| 1 | LED_RED | LED_SMD:LED_0805_2012Metric | D1 |
| 1 | OLED_128X64_1.3_I2C | general:128x64OLED | J1 |
| 1 | SHTC3 | general:Sensirion_DFN-4-1EP_2x2mm_P1mm_EP0.7x1.6mm | U1 |
| 1 | XIAO-RP2040-DIP | general:XIAO-RP2040-DIP | U2 |
Questions
How big is the TempBoard PCB?
It measures 33.3 × 66.1 mm and has 2 copper layers, 1.6 mm thick.
What parts does the TempBoard use?
13 parts, built around the SHTC3. 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 TempBoard KiCad files?
From the obobed/tempBoard repository on GitHub, at the commit this page was made from: the board is pcb/tempBoard.kicad_pcb and its schematic pcb/tempBoard.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the TempBoard design in my own project?
Its repository publishes it under the GPL-3.0 licence: you may reuse it on that licence's terms (keep the author's notice, and for a copyleft licence share your changes alike).
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