Arduino

Great Reads

GFX Forever: The Complete Guide to GFX for IoT

by honey the codewitch

GFX is a fast and full featured replacement for standard IoT drawing libraries that is optimized to reduce bus I/O

A Complete Anti Theft Homemade Surveillance System

by Miguel Diaz Kusztrich

Be notified in your mobile phone of intruders in your home, and take photos of them

Lightning Never Strikes Twice? Maybe Blitzortung knows!

by DaveAuld

Building for and consuming the Blitzortung Lightning Detection Network

Practical Electronics for Makers (Part 4 of N)

by raddevus

Chapter 4 - Resistors and Resistance

Latest Articles

A GPS Based Bike Speedometer on the TTGO T1 Display

by honey the codewitch

Make a little widget that tracks your speed using GPS and strap it to your bike.

Core 2 Clock - A dive into my IoT ecosystem

by honey the codewitch

Using my IoT ecosystem to produce an Internet enabled clock

IP Geolocation with an ESP32 and Arduino

by honey the codewitch

Get location information based on your IP address using an ESP32 and ip-api.com

An introduction to the UIX embedded UI library: A clock for the M5 Stack Core2

by honey the codewitch

Explore my user interface library with an example of an Internet enabled clock

All Articles

top

Arduino

A GPS Based Bike Speedometer on the TTGO T1 Display

N 23 Jul 2024 by honey the codewitch

Make a little widget that tracks your speed using GPS and strap it to your bike.

C++

Arduino

ESP-IDF

GPS

Core 2 Clock - A dive into my IoT ecosystem

21 Jun 2024 by honey the codewitch

Using my IoT ecosystem to produce an Internet enabled clock

An introduction to the UIX embedded UI library: A clock for the M5 Stack Core2

8 May 2024 by honey the codewitch

Explore my user interface library with an example of an Internet enabled clock

C++

Arduino

ESP32

Dynamically Updating Firmware from Arbitrary Sources on an ESP32

24 Mar 2024 by honey the codewitch

Do you need to be able to perform a firmware update without using WiFi? This project is for you.

C++

Arduino

ESP-IDF

ttgo_clock: An Internet Enabled Retro Digital Clock

19 Mar 2024 by honey the codewitch

Just a clock with snazzy digits that syncs using NTP and gets your timezone from your IP.

C++

Arduino

time

A DIY Bluetooth LE to WiFi Bridge

4 Mar 2024 by deangi

A Bluetooth LE scanner gathers data on a schedule from one or more BLE servers and forwards it to WiFi.

Tetris Wall Art for Arduino

4 Mar 2024 by honey the codewitch

Display automated (optionally controllable) Tetris on an LCD or Neopixel panel

A DIY Bluetooth Low Energy Temperature and Humidity Server

26 Feb 2024 by deangi

An ESP32 with a temperature/humidity sensor are configured as a bluetooth low energy server to provide remote monitoring

IoT System for Data Acquisition with REDIS and GO Language

30 Jan 2024 by José Cintra

IoT architecture proposal for sensor data acquisition modules using the REDIS database and the GO language

A DIY IoT Power Monitor

28 Jan 2024 by deangi

Monitoring AC loads with CT sensors

A DIY Web Enabled Water Meter

16 Jan 2024 by deangi

An ESP32 is used to track water usage and serve web pages with water use data

ESP32 DIY GPS Tracker

21 Nov 2023 by deangi

DIY GPS Location Tracker

Winduino: A Tool to Prototype Arduino Projects on the PC

30 Sep 2023 by honey the codewitch

Run and develop Arduino code, including a display, on PC using this Windows PC shim and emulator.

AES Encrypted Data Transmission between Arduino (ESP32) and C# (ASP.NET)

19 Aug 2023 by adriancs

Communication between Arduino and C# (ASP.NET) by using AES encrypted HTTP GET request

EspMon Reboot

11 Jul 2023 by honey the codewitch

Monitor your PC's CPU and GPU with an ESP32

C++

Arduino

ESP32

Player: A Simple Cross Platform Audio Class for IoT

9 Apr 2023 by honey the codewitch

Mix wavs and waveforms with this simple to use library

Using the New ESP32 LCD Panel API With htcw_gfx and htcw_uix

20 Mar 2023 by honey the codewitch

Combine some great technologies for rich, responsive IoT user interfaces on the ESP32

i2cu Take Two: Serial and I2C Probe in a Handy Package

16 Mar 2023 by honey the codewitch

Debug your circuits with this handy device

i2cu: An I2C Bus Probe Tool for the TTGO T1 Display

13 Mar 2023 by honey the codewitch

Easily determine active devices on an I2C bus with this simple device

TTGO Fan Take 2

10 Jan 2023 by honey the codewitch

A far more functional fan controller than before, and some powerful programming techniques

A TTGO Display T1 Based Fan Widget

9 Jan 2023 by honey the codewitch

A project that allows you to use a knob to control a fan's RPM with feedback

C++17

Arduino

IoT

A PWM Based Fan Controller for Arduino

6 Jan 2023 by honey the codewitch

Control 3 or 4 pin PWM fans using this library

C++

Arduino

IoT

A Sonos Speaker System Remote for the TTGO T-Display v1

13 Dec 2022 by honey the codewitch

Control the sound from your Sonos system in each room of your house

A Tale of Two Buttons: Building an IoT Button Library for Arduino

9 Dec 2022 by honey the codewitch

Building a button library seems simple until it isn't.

A Method for Transmitting Uncompressed 44.1kHz 32bit I2S Audio from Arduino MKR WiFi 1010

17 Oct 2022 by hemanthk119

This article describes modification of Arduino NINA firmware to wirelessly transmit I2S microphone data.

EspMon: A Simple PC Hardware Monitor using a T-Display S3

3 Oct 2022 by honey the codewitch

Monitor your CPU and GPU activity with this little project

C++

Arduino

ESP32

Prang Once Again

25 Aug 2022 by honey the codewitch

Dusting off an old MIDI toy project and making it less of a toy.

SFX: Making Noise with a New Audio and MIDI Library for IoT

25 Jul 2022 by honey the codewitch

Make your little devices sing

Unboxing the M5 Stack Fire 2.6

14 Jul 2022 by honey the codewitch

Unlock the potential of this neat little IoT widget

ESP32 WEB Server with Asynchronous Technology and Internal File System

16 Jun 2022 by Member 4206974

A work for exploring the Asynchronous WEB Server, the SPIFFS File system and the exploitation of the dual core

A Web Enabled Smart Clock and Weather Station

16 Jun 2022 by honey the codewitch

Create a clock that uses multiple Internet services to detect your weather, date and time

An Internet Enabled Analog Clock for IoT (ESP32)

11 Jun 2022 by honey the codewitch

Create a simple synchronized analog clock using GFX, and a bit of code

Prang: A MIDI "Score Sampler" on the ESP32S3

15 May 2022 by honey the codewitch

Trigger tracks from Type 2 MIDI files to add to your recording or performance

Advanced Streaming on Little Gadgets: MIDI Files

9 May 2022 by honey the codewitch

Explore some streaming techniques while getting your shiny new ESP32S3 to do some USB and MIDI tricks

Driving Multiple Screens with GFX and an ESP32

22 Apr 2022 by honey the codewitch

How to use GFX to drive multiple screens at the same time on an ESP32

Using GFX in PlatformIO

21 Apr 2022 by honey the codewitch

Take advantage of the PlatformIO repository to easily add GFX to your projects

Writing an X11 Color Picker With GFX

20 Apr 2022 by honey the codewitch

Implement a fancy color picker in your ESP32 WROVER or WROOM IoT applications

Creating Custom Draw Targets in GFX

25 Mar 2022 by honey the codewitch

A more in-depth guide to creating drivers and other custom draw targets for GFX

Big Stuff on Little Widgets: An Exploration of Doing More With Less

25 Mar 2022 by honey the codewitch

On PC platforms, just getting it done is king. On IoT, the trick is doing it in the first place.

C++

Arduino

ESP32

Debugging an Arduino project with GDB on Classic ATtiny and Small ATmega MCUs

12 Mar 2022 by Bernhard Nebel

A tutorial for people who finally want to debug their Arduino projects that run on AVR MCUs using the GNU project debugger GDB

GFX Forever: The Complete Guide to GFX for IoT

8 Mar 2022 by honey the codewitch

GFX is a fast and full featured replacement for standard IoT drawing libraries that is optimized to reduce bus I/O

High Performance Decoupled Buses for IoT Displays

18 Feb 2022 by honey the codewitch

Run your IoT display driver independent of the bus it uses, whether I2C, SPI or parallel

Arduino - KVM Remote

5 Feb 2022 by Christ Kennedy

Build a remote control for a cumbersome wire tangled KVM that fits better hidden under your desk

Arduino

Dev

Simple Socket Protocol for Embedded Systems

2 Jan 2022 by David Lafreniere

A portable C language socket-based software transport protocol library for any hardware communication interface on any platform

Arduino Home Distillery

18 Dec 2021 by Christ Kennedy

Distil hand-sanitizer and other social lubricants using an Arduino

Arduino

Render Professional Screens on IoT

27 Nov 2021 by honey the codewitch

How to take your IoT graphical interface from the mid-1990s into the present

A True Random Number Generator in Arduino (AVR ATmega in that case)

23 Aug 2021 by umar.techBOY

A hardware-based random number generator that exploits the line capacitance and natural frequency of the circuitry of a micro controller to generate a truly random number.

Arduino

Dev

Arduino Kitchen Timer & Thermometer

22 Aug 2021 by Christ Kennedy

How to keep your KD from burning in the pot

C++

Arduino

Dev

IoT Device for Predicting and Identifying Problems in a Datacenter

25 Jul 2021 by André Marcos (Advisor), Luciano Santos de Jesus

Automation with Arduino Prototype for an Alarm Device based on Audiometric Sounds Pattern Control

C++

Arduino

automation

ml_reader.hpp: A Markup Pull-Parser for IoT and Beyond

24 Jul 2021 by honey the codewitch

Do efficient, low level parsing of markup like HTML and XML

zip.hpp: Zip Viewer and Extractor Library for IoT

19 Jul 2021 by honey the codewitch

Browse and extract zips in constrained memory environments

GFX In Depth: Part 2 - E-Paper Displays

18 Jun 2021 by honey the codewitch

Use GFX effectively with e-paper/e-ink displays

Power Reduction and Wake Up Techniques on ESP32 Board

4 Jun 2021 by Member 4206974

A C++ script with functions for managing the power reduction and wake up techniques on ESP32 board

GFX In Depth: Part 1 - Drawing Fundamentals

3 Jun 2021 by honey the codewitch

Explore techniques for drawing using GFX

GFX Sidebar: Inside the ILI9341 Display Driver on the ESP-IDF

6 May 2021 by honey the codewitch

Explore the inner workings of a highly capable IoT display driver for the ESP32

GFX Part 4: The ILI9341 Display Driver and JPEG Support

4 May 2021 by honey the codewitch

Use an ILI9341 display efficiently from an ESP32 without the Arduino framework. Load JPEGs.

GFX Part 3: Drawing Primitives

25 Apr 2021 by honey the codewitch

Explore the basic drawing functionality provided by the GFX IoT library

GFX Part 2: Device Independent Bitmaps

17 Apr 2021 by honey the codewitch

GFX IoT graphics library part 2 - device independent bitmaps

GFX Part 1: A Device Agnostic Pixel

11 Apr 2021 by honey the codewitch

A device independent graphics library for IoT devices. Part 1 of a series.

Connect ESP32 Board via Browser

7 Apr 2021 by Member 4206974

Board based automation and environment control

Objective-C

C++

Arduino

Simone Says

11 Mar 2021 by Christ Kennedy

The classic electronic game brought to you by Arduino Micro Pro

C++

Arduino

ESP32 Deep Dive: What Time Is It?

8 Mar 2021 by honey the codewitch

Traipsing through the ESP-IDF to add some sweet sweet real-time clock functionality

FreeRTOS Thread Pack: Create Multithreaded IoT Code The Easy Way

27 Feb 2021 by honey the codewitch

Using a popular RTOS to enable easy multithreading on your IoT gadgets

Use Both Cores on an ESP32: Easy Synchronization with Esp32SynchronizationContext

25 Feb 2021 by honey the codewitch

Take a page from .NET and enjoy an easy way to safely pass information between threads on an ESP32

Fun With State Machines: Incrementally Parsing Numbers Using Hacked Regex

2 Jan 2021 by honey the codewitch

Hoodwink your computer into doing your work for you using regular expressions

JSON by Design: A Walkthrough of a High Performance JSON Processor

1 Jan 2021 by honey the codewitch

Designing infinitely scalable JSON: JSON (C++)

Diet JSON and a Coke: An Exploration of Incredibly Efficient JSON Processing

22 Dec 2020 by honey the codewitch

Highly efficient access to JSON data sources and selective bulk loading JSON on any platform using a new JSON paradigm

JSON on Fire: JSON (C++) is a Blazing JSON Library that can Run on Low Memory Devices

22 Dec 2020 by honey the codewitch

A JSON pull parser and a pooling in-memory tree library for modern IoT or even your PC

Fast Memory Allocation and Pooling for Constrained Environments

14 Dec 2020 by honey the codewitch

Some C++ magic to help cut down on heap abuse for simple scenarios

Big JSON on the Arduino: Parse Huge Data on a Tiny Device

11 Dec 2020 by honey the codewitch

Streaming your data and parsing on the go with tiny gadgets

Remote Residential Lighting - Part 1: The Prototyping

9 Dec 2020 by André Marcos (Advisor), Gabriel Trepak, Vinícius Barauna Santana

Automating the Residential Lighting Activation Process Using Arduino

Matrix Voltage Divider Button Calculator for Microcontrollers

4 Dec 2020 by Christ Kennedy

Interactive interface helps generate resistance ratios for button matrices of various sizes

Arduino

Swipe Gestures Using a TFT Display

3 Dec 2020 by honey the codewitch

Implement swipe left/right/up/down using a TFT touchscreen and an Arduino compatible device

IoT Smart Clock using the Mega 2560+WiFi R3

10 Nov 2020 by honey the codewitch

An advanced network connected clock that puts the Arduino through its paces

Automatic Network Configuration of ESP8266 IoT Devices

5 Nov 2020 by honey the codewitch

A walkthrough and source code for automatically configuring your ESP8266 IoT devices

Harnessing the ESP8266 in the Arduino Mega 2560+WiFi R3

2 Nov 2020 by honey the codewitch

Turbocharge your device with a clever way to configure your board

Arduino

All-Topics

Dev

A Tour of the Arduino Mega 2560+WiFi R3

30 Oct 2020 by honey the codewitch

Using this cheap, powerful little device to make magic

Arduino - Exercise Reps Counter with Analog Voltage Divider Button Controller

25 Sep 2020 by Christ Kennedy

An Arduino project that keeps track of your best Workout times and rep-counts

Arduino

hardware

DevOps

Arduino Scheduler

16 Sep 2020 by Member 4206974

A function that works on event of Arduino and ESP32 boards

Arduino Nano Project Displaying Clock, Calendar and Internal and External Temperatures (Ver 1.2)

4 Sep 2020 by Uzi Granot

Arduino Nano micro controller breadboard project with wiring diagram and source code. Development software by PlatformIO and Arduino Studio.

C++

Arduino

Falling Blocks on an Arduino Nano with 4x 8x8 dot Matrix

19 Aug 2020 by Christ Kennedy

Here's how I made a game of Falling Blocks with my Arduino Nano, a clothes hanger and some duct tape

C++

Arduino

DevOps

GarageWatcher - A Full-Stack IoT Project, from Hardware to App

2 Jun 2020 by g96b10

Musings, tips, and lessons learned from developing a physical device, serverless back-end, and Android app

Implementation and Testing of Universal, Reversible Fredkin Gates

2 Apr 2020 by JorgeLuisOrejel

Implementation of Fredkin gates using standard TTL ICs, and their testing with an Arduino Uno microcontroller board

Arduino

CloudCooker - IoT Temperature Controller

11 Feb 2020 by Chris Gannon

An Azure-driven service for Arduino based PID controllers designed for control and monitoring of grills and other cooking devices

Creating and Debugging Arduino Programs in Visual Studio Code - Part 3

16 Jul 2019 by Jan Dolinay

This article describes how to replace the standard Arduino bootloader with special bootloader with debugger support which makes the debugging more useful.

Arduino

Visual-Studio

Dev

Creating and Debugging Arduino Programs in Visual Studio Code - Part 2

26 Jun 2019 by Jan Dolinay

This article shows how to set up VS Code to debug your Arduino program.

Creating and Debugging Arduino Programs in Visual Studio Code - Part 1

26 Jun 2019 by Jan Dolinay

How to create and debug Arduino programs in Visual Studio code

Run a C Language Interpreter on Your ESP32

31 May 2019 by Rick Lunglhofer

Details the Implementation and use of a C Language Interpreter with a browser Interface running on an ESP32

Adding Object Detection with TensorFlow to a Robotics Project

28 Apr 2019 by Phil Hopley

In this article, we will add AI to an existing ROS (Robot Operating System) House Bot.

Rodney - A Long Time Coming Autonomous Robot (Part 6)

15 Apr 2019 by Phil Hopley

Sixth part in a series on a ROS (Robot Operating System) House Bot

Practical Electronics For Makers (Part 5 of N)

9 Apr 2019 by raddevus

Using transistors as switches

Arduino

Rodney - A Long Time Coming Autonomous Robot (Part 5)

7 Apr 2019 by Phil Hopley

Fifth part in a series on a ROS (Robot Operating System) House Bot

Exercising Misty's Extensibility

3 Apr 2019 by Johnathan Ortiz-Sonnen

Deconstructing Misty's "Follow Ball" Skill

Javascript

Arduino

artificial-intelligence

Practical Electronics For Makers (Part 1 of N)

4 Mar 2019 by raddevus

Intro and Chapter 1 - In this book, we will learn basic electronics as we build our first circuit, learn what electronic components do and finally build our own devices.

Arduino

embedded

electronics

LED Candle Light with Timer

25 Feb 2019 by hjgode

LED candle light with timer

Rodney - A Long Time Coming Autonomous Robot (Part 4)

17 Jan 2019 by Phil Hopley

Fourth part in a series on a ROS (Robot Operating System) House Bot

Rodney - A Long Time Coming Autonomous Robot (Part 3)

17 Jan 2019 by Phil Hopley

Third part in a series on a ROS (Robot Operating System) House Bot

Rodney - A Long Time Coming Autonomous Robot (Part 2)

16 Jan 2019 by Phil Hopley

Second part in a series on a ROS (Robot Operating System) House Bot

Rodney - A Long Time Coming Autonomous Robot (Part 1)

15 Jan 2019 by Phil Hopley

First part in a series on a ROS (Robot Operating System) House Bot

NodeMCU and Wi-Fi Remote Control Apps for Mobile Phones

6 Jan 2019 by José Cintra

Step-by-step guide on how to develop wi-fi remote control HTML5 applications for mobile phones and use them in IoT applications with NodeMCU and compatible devices (ESP8266 / ESP32)