4 layers100 × 100 mm
2 layers106 × 51.5 mm
Temp Humidity Monitor FINAL
YosefMinassie/Temp-Humidity-MonitorA display that is in my room that keeps track of the temperature and humidity in my room
- Size
- 106 × 51.5 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 17
- Nets
- 41
- Pads
- 79
- Tracks, vias
- 107, 0
- Routed
- Yes
- KiCad
- KiCad 10.0 (file 20260206)
- Created
- 5 Oct 2026
- Updated
- 10 Oct 2026
Overview
Temp Humidity Monitor FINAL is an open-source printed circuit board by YosefMinassie, from the YosefMinassie/Temp-Humidity-Monitor repository on GitHub. It is a 2-layer board of 106 × 51.5 mm with 17 parts on 41 nets, routed with 107 tracks and 0 vias.
It is built around the DHT22 and DC10EWA. Its parts include 10 resistors, 3 ICs and 1 diode. It belongs with the lEDs and displays boards and the AVR (ATmega, ATtiny) boards of this library.
Main components
2README
README.mdTemperature & Humidity Monitor PCB
A custom PCB designed in KiCad that displays temperature and humidity data from a DHT22 sensor on an OLED display. The project uses an Arduino Nano as the main controller and includes a 10-segment LED bar graph for visual indicators, based on the temperature and humidity.
Project Images
Schematic
PCB Layout
3D View + Rendered
Components
- Arduino Nano
- DHT22 Temperature/Humidity Sensor
- 0.96" 128x64 I2C OLED Display
- 10-Segment LED Bar Graph
- 10 x 220Ω Resistors
- Custom PCB
Why I Built This
I wanted to learn the complete PCB design process, from creating a schematic to designing a PCB and viewing the final board in 3D. This project also helped me practice working with sensors, displays, and KiCad.The project also would have a real purpose in my life because it helps my to manage my skin, eye, and nose health.
Software/Websites Used
- KiCad for PCB design
- Arduino IDE to turn Wokwi Code into a .ano file
- Wokwi: To simulate my project and just to let you know, YOU NEED TRY THISS!!! IT'S AMAZING AND GIVES YOU A GREAT LEARNING EXPERIENCE OF WIRING & CODING!!!!; https://wokwi.com
Parts
17| Qty | Value | Footprint | References |
|---|---|---|---|
| 10 | 220R | Resistor_THT:R_Axial_DIN0204_L3.6mm_D1.6mm_P5.08mm_Vertical | R1, R2, R3, R4, R5, R6, R7, R8, R9, R10 |
| 2 | LOGO | PCB Decor:Small_Banan | G***, G*** |
| 1 | ARDUINO_NANO | KiCaddy:MODULE_ARDUINO_NANO | U1 |
| 1 | DC10EWA | KiCaddy:DIP750W50P254L2540H825Q20 | D1 |
| 1 | DHT22 | KiCaddy:DHT22 | U2 |
| 1 | ER_OLEDM0.91_1x-I2C | Display:ER_OLEDM0.91_1x-I2C | U3 |
| 1 | LOGO | PCB Decor:Small_Monkey | G*** |
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Questions
How big is the Temp Humidity Monitor FINAL PCB?
It measures 106 × 51.5 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Temp Humidity Monitor FINAL use?
17 parts, built around the DHT22 and DC10EWA. 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 Temp Humidity Monitor FINAL KiCad files?
From the YosefMinassie/Temp-Humidity-Monitor repository on GitHub, at the commit this page was made from: the board is Temp-Humidity-Monitor-FINAL.kicad_pcb and its schematic Temp-Humidity-Monitor-FINAL.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Temp Humidity Monitor FINAL design in my own project?
Its repository states no licence, so its author keeps all rights: ask YosefMinassie before reusing the design.