DIY Arduino Boards IO I2C Files

DIY Arduino Boards for IO using port expanders and I2C

Brought to you by: brownrb

The interactive file manager requires Javascript. Please enable it or use sftp or scp.
You may still browse the files here.

Name	Modified	Size	InfoDownloads / Week
Parent folder
Example3.ino	2018-12-23	6.4 kB	0
Example2.ino	2018-12-23	5.3 kB	0
Example1.ino	2018-12-23	2.1 kB	0
LED Traffic Light ViewSide.jpg	2018-12-23	7.4 kB	0
LED Traffic Light Connection.fzz	2018-12-23	11.4 kB	0
LED Traffic Light Connection.jpg	2018-12-23	228.7 kB	0
LED Traffic Light DataSheet 5355.pdf	2018-12-23	154.7 kB	0
Examples.txt	2018-12-23	350 Bytes	0
Totals: 8 Items		416.3 kB	0

DIY Arduino Boards PCF8574 MCP23017 74HC595 CD4021
I2C
Parallel IO

Schematics
PCB Layout
Sample Code

Source: Readme.txt, updated 2015-03-02

Other Useful Business Software

MongoDB Atlas runs apps anywhere

Deploy in 115+ regions with the modern database for every enterprise.

MongoDB Atlas gives you the freedom to build and run modern applications anywhere—across AWS, Azure, and Google Cloud. With global availability in over 115 regions, Atlas lets you deploy close to your users, meet compliance needs, and scale with confidence across any geography.

Start Free

Level Up Your Cyber Defense with External Threat Management

See every risk before it hits. From exposed data to dark web chatter. All in one unified view.

Move beyond alerts. Gain full visibility, context, and control over your external attack surface to stay ahead of every threat.

Try for Free

Recommended Projects

myNetPCB
PCB Layout and Schematic capture tool for Win/Linux/Mac. Source code at https://github.com/sergei-iliev/myNetPCB
ADI Open Hardware
This is the repository for the embedded hardware projects that have to do with open ADI source software. This includes not only platforms with processors on them, but also various analog peripherals as well. Such as the ADI evaluation boards, peripheral boards, ICE debugger, etc. In the...
AntennaTuner
This is project about DL3LAC's Antenna Tuner called "Christian-Koppler". The original tuner used an semidigital remote controller and 24line cable between the tuner unit and remote controller. I decided me to build the tuner unit and replaced the controller part by an ATmega MCU on both sides...
ESP32 Dew Controller
This is an enhanced 4-Channel automated Dew Controller based on an ESP32 WiFi chip on a PCB and enclosed in a project hobby box. (c) Copyright Robert Brown 2020-2024. All Rights Reserved.Permission is granted for personal and Academic use only. Code or portions of code may not be copied or...
Arduino Nano Dew Controller Pro (DIY)
A 3-channel fully automated Dew Controller (DIY project) based on Arduino Nano for telescopes. For $48 or less. (c) Copyright Robert Brown 2014-2025. All Rights Reserved. Permission is granted for personal and Academic use only. Code or portions of code may not be copied or used without...

DIY Arduino Boards IO I2C Files

DIY Arduino Boards for IO using port expanders and I2C

Get an email when there's a new version of DIY Arduino Boards IO I2C