Click here to Skip to main content

Submit your article

Internet of Things

IoT

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

Lightning Never Strikes Twice? Maybe Blitzortung knows!

by DaveAuld

Building for and consuming the Blitzortung Lightning Detection Network

Never Buy A Garage Door Remote Again: Open Your Door With Your Android Phone (via Bluetooth)

by raddevus

Steps for building a device you can add to your existing garage door, which implements an atmega328, bluetooth (hc-05) and relay module which will allow you to open your garage door from any paired Android device.

A PWM Based Fan Controller for Arduino

by honey the codewitch

Control 3 or 4 pin PWM fans using this library

Latest Articles

htcw_json: A tiny streaming JSON parser

by honey the codewitch

Stream JSON efficiently on little devices with minimal flash and memory usage

Tetris Wall Art for Arduino

by honey the codewitch

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

Getting Crafty With Graphics With Just Kilobytes of Flash and Almost No RAM

by honey the codewitch

Got an embedded or IoT widget with a screen but no real memory or flash space to speak of? Read this.

IoT Data Hub for Remote Edge Deployment

by deangi

IoT data edge hub is designed for remote low power unattended applications. IoT devices can post data to the Hub which will store the data and make it available for later download to core servers. Design is based on a low cost ESP32 platform with an attached SD card.

All Articles

Internet of Things

htcw_json: A tiny streaming JSON parser

31 Mar 2024 by honey the codewitch

Stream JSON efficiently on little devices with minimal flash and memory usage

Tetris Wall Art for Arduino

4 Mar 2024 by honey the codewitch

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

Getting Crafty With Graphics With Just Kilobytes of Flash and Almost No RAM

24 Feb 2024 by honey the codewitch

Got an embedded or IoT widget with a screen but no real memory or flash space to speak of? Read this.

IoT Data Hub for Remote Edge Deployment

10 Feb 2024 by deangi

IoT data edge hub is designed for remote low power unattended applications. IoT devices can post data to the Hub which will store the data and make it available for later download to core servers. Design is based on a low cost ESP32 platform with an attached SD card.

A DIY Time Lapse Photography Camera

17 Jan 2024 by deangi

The inexpensive ESP32 platform is used to take periodic photos that can make a time-lapse video.

Smart Home – Controlling Shelly® Devices (Part 4) - Property-Manipulation with the PropertyDescriptor

16 Jan 2024 by Ralf Meier

This article revolutionizes Shelly device management, providing an updated, efficient, and feature-rich solution for both beginners and advanced users." You will discover new ShellyCom2 features, such as property manipulation using PropertyDescriptor, and a set of valuable helpers and commands.

VisionFive 2 RISC-V - Setting up Apache2, Php, Postgres, Mosquitto, and Compilers

16 Dec 2023 by Richard Chambers

Creating a simple VisionFive 2 RISC-V SBC web site using Apache2, PHP, and Postgres with the Mosquitto message broker and installing Golang, Java, and Rust.

Smart Home – Controlling Shelly® Devices (Part 3)

13 Dec 2023 by Ralf Meier

The article walks through ShellySceneComponent and ShellyScenesComponent, which allow users to define scenes with multiple actions assigned to a control or controls for Shelly devices.

Setting Up a New VisionFive 2 RISC-V SBC

27 Nov 2023 by Richard Chambers

The VisionFive 2 RISC-V SBC is an alternative to the Raspberry Pi 4, however its software has some rough edges. I decided to write about my experience working with a series of Raspberry Pi 3 hobby experiments using the VisionFive.

rxcg: A Simple Text Matcher C Code Generator for IoT

15 Nov 2023 by honey the codewitch

Generate tight C code to match text based on regular expressions

regular-expression

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.

Running ASP.NET Core Web Server on Arm64

8 Sep 2023 by Dawid Borycki

This article demonstrates how you can use ASP.NET Core with Windows 11 to build a web server for a headless IoT application. You will gain insights into harnessing Arm64-powered devices that offer high performance while consuming minimal power for your IoT applications.

Porting EspMon to ZephyrOS on a STM32 Boards (or other boards, with a little work)

24 Jul 2023 by honey the codewitch

A crash course in using Zephyr RTOS with my IoT ecosystem

Industrial IoT based Machine Tool Condition Monitoring With GE Predix Time Series Ingestion And Data Streaming

22 May 2023 by Grasshopper.iics, Abhishek Nandy, Moumita Das

Industrial IoT time series data collection with GE Predix time series ingestion and data streaming

machine-learning

IoT-VR with Unity, Intel Edison

20 May 2023 by Grasshopper.iics, Abhishek Nandy, Moumita Das

Virtual Reality with Unity, Intel Edison and MQTT

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

Stateful Screen Rendering on Little Devices

26 Feb 2023 by honey the codewitch

How to make very responsive, flicker free interactive screens without using a lot of memory

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

A PWM Based Fan Controller for Arduino

6 Jan 2023 by honey the codewitch

Control 3 or 4 pin PWM fans using this library

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.

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

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

Flexible Tado Schedules using Home Assistant and Node-RED

18 May 2022 by Jasper Lammers

How to use Home Assistant and Node-RED for flexible Tado schedules

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

Azure IoT Central Tester

17 Jan 2022 by Roman Kiss

Design and implementation of small tool, tester for Azure IoT Central

IoT Starter Raspberry Pi Lumi

18 Dec 2021 by Jose Motta

IoT.Starter.Pi.Thing growing into an embryo of a universal IR remote control

Developing Applications for Azure Sphere, Part 2: Building High-Level Applications

31 Oct 2021 by Matt Scarpino

This article explains how to build, program, and deploy high-level applications that run on the Azure Sphere OS.

Developing for Azure Sphere, Part 1: Getting Started

31 Oct 2021 by Matt Scarpino

This article explains how to configure hardware and software to support development of Azure Sphere applications.

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

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

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

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

Parallel Heterogeneous Programming In C++17/2x0 Using CL/SYCL-Model Specification On Raspberry Pi 4B+ IoT-Boards

10 Dec 2020 by Arthur V. Ratz

A practical guide for building parallel CL/SYCL-code in, C++17, targeting Arm/AArch64-architectures and running it on Raspberry Pi 4B+ IoT-boards

Efficient HTTP Chunked Transfer Encoding for IoT Devices

26 Nov 2020 by honey the codewitch

Efficiently send large amounts of data with a tiny amount of memory

An IoT Smart Clock Using an ESP32 Development Board

22 Nov 2020 by honey the codewitch

Revisiting our WiFi enabled smart clock project with more modern hardware

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

A $5 Programmable Tiny Webserver The Size of a Jump Drive

4 Nov 2020 by honey the codewitch

Unleash the tiny ESP-01 on your network

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

App Development on Windows IoT using VS 2019

28 Apr 2019 by Martin Gmuca

In this article, we will look at the process of app development, deploy and debug on Raspberry Pi 3 using VS2019.

Exercising Misty's Extensibility

3 Apr 2019 by Johnathan Ortiz-Sonnen

Deconstructing Misty's "Follow Ball" Skill

artificial-intelligence

product-showcase

machine-learning

Azure IoT Hub with nanoFramework

16 Jan 2019 by José Simões

This project demos how easy it is to code a nanoFramework C# application to build a device connected to Azure IoT Hub using AMQP.

microcontroller

MXChip Device with Pressure, Humidity, Temperature Info using Azure IoT Workbench

4 Jan 2019 by Sibeesh Passion

Set up MXChip and get it working to send information to Azure IoT Hub

Realtime Serverless IoT Data using Azure SignalR and Azure Functions in Angular

1 Jan 2019 by Sibeesh Passion

How we can show the real-time data from our IoT device in an Angular application using Azure SignalR service and Azure Functions

IoTHubTrigger Azure Function and Azure IoT Hub

28 Dec 2018 by Sibeesh Passion

IoTHubTrigger Azure Function and Azure IoT Hub

Azure Function as Output Job Topology of an Azure Stream Analytics Job

19 Dec 2018 by Sibeesh Passion

In this article, we are going to see how we can set up an Azure Function as an Output job topology of an Azure Stream Analytics job. Doesn’t that sound interesting?

Moving Legacy C# Code to the Cloud with Thriftly.IO

14 Nov 2018 by Carey Payette

Thriftly.IO allows organizations to leverage existing code and infrastructure assets to define new cloud-based APIs.

product-showcase

IoT Home Assistant API for Raspberry Pi

29 Oct 2018 by Jose Motta

Build an embryo API that improves interaction between Home Assistant and Docker containers

Azure IoT - Good Security Practice

12 Oct 2018 by DataBytzAI

A quick run through important points for IoT security

What is IoT Edge?

24 Sep 2018 by DataBytzAI

With edge computing, you can avoid transferring raw data by carrying out data cleaning, aggregation and analysis on the device itself, and then send the insights gained to the cloud.

Azure IoT Hub Overview

25 Aug 2018 by DataBytzAI

Azure IoT hub allows you to get on with developing cool IoT stuff, and not worry about how it all gets connected up and managed.

Streaming Engine Data to Azure with Windows IoT

8 Aug 2018 by Joel Ivory Johnson

Using a the OBD II Port and a Windows IoT Device (DragonBoard 410c or Raspberry Pi) to push real time engine data to the Azure Cloud for Analysis

Let's IoT Hub: Tutorial 2

3 Aug 2018 by g96b10

Create a console application that listens to the data your Raspberry Pi 3 uploads to Azure IoT Hub

Let's IoT Hub: Tutorial 3

2 Aug 2018 by g96b10

Create an application to download and store data uploaded to your Azure IoT Hub

Let's IoT Hub: Tutorial 1

2 Aug 2018 by g96b10

Set up an Azure IoT Hub and connect to it via Raspberry Pi 3

Sending Morse Code with your Arduino

3 Jul 2018 by Ryan Peden

A small project to display a message in Morse code using an Arduino's built-in LED

Interop in .NET nanoFramework

19 Jun 2018 by José Simões

Using Interop to call native (C/C++) code from C# (managed) library with .NET nanoFramework

Connecting an Arduino to a Breadboard to light up LEDs using Tinkercad

5 Jun 2018 by Ryan Peden

This article will guide you through creating a simulated Arduino project connected to a breadboard using Tinkercad

Tracking Objects with Pixy Visual Sensor on Raspberry Pi using Windows 10 IoT Core

26 May 2018 by Victor Dashevsky

Processing the positioning information of visual objects detected by Pixy camera and received on Raspberry Pi via I2C, and using common design patterns in a C# program parsing robotics sensor data

Software-Defined Sensors and Protocols

14 May 2018 by Intel

In this webinar on Software Defined Sensors and Protocols, we're going to be talking about the connection between cyber, and physical, which boils downs to sensors, actuators, and protocol. This will include industrial sensors and actuators, and support for MQTT and OPC-UA.

Start Amazon Web Services Greengrass Core on the UP Squared Development Board

26 Apr 2018 by Intel

This guide shows the steps to start Amazon Web Services (AWS) Greengrass core on Ubuntu using the UP Squared development board.

Levaux’s SenseAgent Delivers End-to-End IoT Insight for Smart Building Management

26 Apr 2018 by Intel

With the Levaux SenseAgent and Intel-based IoT gateway, building managers have the insight to maximize efficiency, proactively address maintenance, optimize environments, and improve occupant wellness and productivity.

Blockchain and the Hyperledger Sawtooth Implementation

26 Apr 2018 by Intel

IoT Developer Show

Wind River Helix Device Cloud Application Deployment: POC Retail Vending Machine

26 Apr 2018 by Intel

This article will explore a proof of concept that leverages the capabilities of Helix Device Cloud (HDC) and uses the UP Squared board as the vending machine gateway.

product-showcase

Developing Visual Retail Solutions Using Intel® Hardware and Software

3 Apr 2018 by Intel

The Retail Workshop: Hands on Learning with Intel®-based Retail Solutions

Cut Energy Costs with a Smart Real-Time Occupancy Solution from Feedback Solutions and Intel

3 Apr 2018 by Intel

Cut Energy Costs with a Smart Real-Time Occupancy Solution from Feedback Solutions and Intel

Storage Unit Flood Detector

22 Mar 2018 by Intel

This storage unit flood detector application is part of a series of how-to Internet of Things (IoT) code sample exercises using the Intel® IoT Developer Kit and a compatible Intel-based platform, cloud platforms, APIs, and other technologies.

Increasing Efficiency and Uptime with Predictive Maintenance

22 Mar 2018 by Intel

In many manufacturing plants today, monitoring is a highly manual process. FOURDOTONE Teknoloji analyzes data from sensors to enable manufacturers to respond immediately to problems, and predict when machines are likely to fail.

Industry 4.0 - Making IIoT a semi-automatic machinery #1

22 Mar 2018 by Intel

In this article we analyse the industry 4.0 possibilities and we will show how it is possible to make IIoT a semi-automatic machinery managed mainly by people.

Using Intel® Math Kernel Library with Arduino Create

22 Mar 2018 by Intel

This article presents use cases and provides examples which make use of the Intel® Math Kernel Library (Intel® MKL)

product-showcase

IoT Starter Raspberry Pi Core

15 Feb 2018 by Jose Motta

IoT Starter Pi Core develops an ASP.NET Core Web Service for Raspberry Pi automatically generated by Swagger Hub.

IoT Starter Raspberry Pi Thing

15 Feb 2018 by Jose Motta

An embryo for Home Intelligence using Raspberry Pi with Linux

IoT Starter Raspberry Pi Lirc

15 Feb 2018 by Jose Motta

IoT.Starter.Pi.Thing powered by Linux Infrared Remote Control

IoT Starter Raspberry Pi Compose

13 Feb 2018 by Jose Motta

Compose microservices at Raspberry Pi with Linux & .NET Core to start an IoT initiative right now

Build an Autonomous Mobile Robot with the Intel® RealSense™ Camera, ROS, and SAWR

13 Feb 2018 by Intel

In this article, we give an overview of the SAWR project and also offer some tips for building your own robot using the Intel RealSense camera and SAWR projects.

product-showcase

Optimizing Traffic for Emergency Vehicles using IOT and Mobile Edge Computing

13 Feb 2018 by Intel

In this paper we focus on how Vehicle-to-Infrastructure connectivity can help to optimize city traffic for emergency vehicles, and provide personalized treatment to patients in need.

product-showcase

IoT 101 Series, Part 3: Usability & Affordability of Designing IoT Devices

13 Feb 2018 by Intel

IoT 101 Series, Part 3: Usability & Affordability of Designing IoT Devices

Troubleshooting Connections with the UP Squared Grove IoT Development Kit and Arduino Create

13 Feb 2018 by Intel

Troubleshooting Connections with the UP Squared Grove IoT Development Kit and Arduino Create

OpenCL™ Drivers and Runtimes for Intel® Architecture

13 Feb 2018 by Intel

The SDK includes components to develop applications: IDE integration, offline compiler, debugger, and other tools.

Speed System & IoT Device Application Development with New Intel® System Studio 2018

13 Feb 2018 by Intel

Intel just released Intel® System Studio 2018, an all-in-one, cross-platform, comprehensive tool suite for system and IoT device application development.

Driver Recognition and Fatigue Detection Systems with Devices Powered by Intel

13 Feb 2018 by Intel

This article discusses fatigue detection systems.

A Closer Look at Object Detection, Recognition and Tracking

25 Jan 2018 by Intel

Below we seek guidance from the dictionary to appropriately define and discern the terms object detection, object recognition and object tracking.

Object Recognition using Inference and Single Shot MultiBox Detector (SSD)

25 Jan 2018 by Intel

This tutorial will walk you through the basics of using the Deep Learning Deployment Toolkit's Inference Engine (included in the Intel® Computer Vision SDK).

Seamless Edge-to-Cloud IoT Integration Speeds Time to Market

25 Jan 2018 by Intel

Intel and Google have worked together to deliver a standards-based approach to help IoT developers, OEMs, independent software vendors (ISVs), and system integrators (SI) develop seamless solutions.

How Can Device Software Developers Move from Prototype to Product Faster?

25 Jan 2018 by Intel

In this article I’ll highlight some of the challenges of software development for devices, as teams cope with shrinking timelines, scarce resources, and rigorous requirements for quality and performance optimization.

IoT 101 Series, Part 1: Introduction to Designing IoT Devices

25 Jan 2018 by Intel

IoT 101 Series, Part 1: Introduction to Designing IoT Devices

IoT 101 Series, Part 2: Technology and Design of IoT Devices

25 Jan 2018 by Intel

IoT 101 Series, Part 2: Technology and Design of IoT Devices

Relayr "Any to Any" Connectivity Transforms Smart Buildings

25 Jan 2018 by Intel

Solving connectivity and interoperability challenges. Increasing building insight and efficiency.

product-showcase

Flexible New IoT Platform Empowers Enterprise Applications

25 Jan 2018 by Intel

Infiswift’s IoT platform, powered by Intel® technology, enables scalable and secure connections that deliver real-time, actionable insights.

product-showcase