2 layers82 × 100 mm
Robo car
ChefsSlaad/PCBs_and_Micropython
storing custom pcbs and micropython code for home projects
36 parts
2 layers78.6 × 59.4 mm
Hermes
ryukgod26/HermesTo use this project you just need to connect the sensors, switch and arduino nano with each other according to the wiring Diagram. Then clickConnect the Arduino nano with your computer with a USB Cable.
- Size
- 78.6 × 59.4 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 5
- Nets
- 29
- Pads
- 48
- Tracks, vias
- 77, 0
- Routed
- Yes
- KiCad
- KiCad 9.0 (file 20241229)
- Created
- 28 May 2026
- Updated
- 21 Jun 2026
Overview
Hermes is an open-source printed circuit board by ryukgod26, from the ryukgod26/Hermes repository on GitHub. It is a 2-layer board of 78.6 × 59.4 mm with 5 parts on 29 nets, routed with 77 tracks and 0 vias.
It is built around the DHT11 and HC-SR04. Its parts include 1 IC and 1 switch. It belongs with the AVR (ATmega, ATtiny) boards of this library.
Main components
2README
Readme.mdHermes
This is simple hermes board Created by me. It uses a Arduino Nano, 0.96 OLED Display, Ultra Sonic Sensor, DHT11 Temeperature/Humidity and a simple button. This shows the Temperature Data on the Screen First and when the Switch is pressed the data on the OLED Display get switchwd and started showing the data from the Ultra Sonic Sensor If there is a object in the range it shows how far is the object from the Ultra Sonic Sensor and if there is no object in he range then it shows "OUT OF RANGE!!".
Zine
Why
I built this Project to learn how to use Oled Display and connect different sensor with each other and know how to switch from reading data from one sensor to another. This was Learning Project built entirely to improve Hardware Skills.
How to Use It
To use this project you just need to connect the sensors, switch and arduino nano with each other according to the wiring Diagram. Then clickConnect the Arduino nano with your computer with a USB Cable. Then Open the arduino IDE and Select the COM port of the arduino Port. Then Upload the Code in Code/hermes_code Folder and upload that code to the arduino nano. Then It will Start Showing the Temperature of the Room to the Display and when you will press the switch then it will start reading the ultra sonic sensor and will tell the distance between the Object and the Ultra Sonic Sensor if there is a Object in range and Show that Distance in the Display.
Required Hardware
- Arduino Nano X 1
- Ultra Sonic Sensor X 1
- Temperature and Humidity Sensor X 1
- 0.96 OLED Display X 1
- Simple Button X 1
BOM (bill of Materials)
Parts
5Questions
How big is the Hermes PCB?
It measures 78.6 × 59.4 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Hermes use?
5 parts, built around the DHT11 and HC-SR04. 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 Hermes KiCad files?
From the ryukgod26/Hermes repository on GitHub, at the commit this page was made from: the board is hardware/Hermes/Hermes.kicad_pcb and its schematic hardware/Hermes/Hermes.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Hermes design in my own project?
Its repository states no licence, so its author keeps all rights: ask ryukgod26 before reusing the design.
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