I want to fix my Arduino Uno R3 on PCB using male connector (PCB header) on my PCB. What is the pitch of the connectors? What is the height of Arduino connector above the Arduino evaluation board PCB? Please let me know this as soon as possible. I am searching online but not getting this inof.

Note in advance: you might be better off using a (classic) Arduino Nano. [image] arduino_ad: What is the pitch of the connectors? 0.1" Be aware of the odd gap between pin 7 and 8. [image] arduino_ad: What is the height of Arduino connector above the Arduino evaluation board PCB? Not…

What software are you using to design the PCB ? It is very likely that it has a footprint from the Uno but, as has been suggested, a Nano classic might be a more appropriate form factor to use

We are using Altium for PCB design.

Hello Sterretje, Thanks for the reply. Pitch = 0.1 inches for the connectors marked red in below image. Can you please confirm... [image]

[image] arduino_ad: Can you please confirm... yes the four sets of pins have a 0.1" pitch individually — but the distance between the sets is not a multiple of 0.1"

Thanks @J-M-L for quick response.

Can you please send me the download link for this Arduino drawing pdf. I will share to PCB layout engineer.

that was not the UNO so I removed it if you search for "Arduino Uno dimensions" you'll get some hits like [image] this is from this pdf Your PCB layout engineer should get the Eagle file I mentioned before...

Maybe this helps: arduino-footprint-altium/Sources/uno.PcbLib at master · sajjsamm/arduino-footprint-altium · GitHub (part of GitHub - sajjsamm/arduino-footprint-altium: Arduino Uno and Arduino Mega as components in Altium Designer along with footprints. · GitHub ). Found by searching the web for al…

Arduino Uno R3 Dimensions

Other Hardware General Electronics

J-M-L March 19, 2026, 10:10am 3

You can download the Eagle file from Arduino UNO Rev3 – Reliable ATmega328P Board with Digital & Analog I/O — Arduino Official Store

+1 for

Topic		Replies	Views
Eigenes PCB auf Arduino Uno R4 Deutsch	4	159	February 5, 2026
The pitch on the longer connector on the R4 is NOT 0.1" UNO R4 WiFi	29	1485	July 27, 2023
Arduino Uno Mini pad dimensions and spacings UNO R3	4	1028	March 6, 2022
PCB support for Arduino Uno General Electronics	21	53803	April 13, 2016
Question to understand UNO R3	11	271	January 11, 2025

Arduino Uno R3 Dimensions

Related topics