ESP32 Web Server – Arduino IDE
In this project you’ll create a standalone web server with an ESP32 that can toggle two LEDs using the Arduino IDE programming environment. If you want to learn more about the ESP32 dev board, read my Getting Started Guide with ESP32.
Continue ReadingESP8266 Publishing DHT22 Readings to SQLite Database
In this project you’ll create a standalone web server with a Raspberry Pi that displays temperature and humidity readings with a DHT22 sensor that are stored in an SQLite database. In order to create the web server you will be using a Python microframework called Flask. Here’s the high level overview of the system: Recommended […]
Continue ReadingESP8266 Publishing DHT22 Readings with MQTT to Raspberry Pi
In this project you’ll create a standalone web server with a Raspberry Pi that displays temperature and humidity readings with a DHT22 sensor. You can also control two outputs from an ESP8266 using MQTT protocol. In order to create the web server you will be using a Python microframework called Flask. Here’s the high level […]
Continue ReadingArduino Ethernet Web Server with Relay
This posts shows how to build an Arduino Ethernet web server that controls a relay that is attached to a lamp. You can access your web server with any device that has a browser and it’s connected to the same network.
Continue ReadingArduino Step-by-step Projects – Build 23 Projects
Arduino Step-by-step Projects Build 23 Projects My step-by-step course to get you building cool Arduino projects, even with no prior experience!
Continue ReadingHow to install phpLiteAdmin Database in a Raspberry Pi
In this blog post I’ll introduce you to phpLiteAdmin which is a web-based user interface written in PHP that makes it easy to interact with SQLite databases.
Continue Reading9 Biometric Sensors Arduino Compatible
In this post I’ll share with you a list of 9 biometric sensors Arduino compatible that you can use in your bioengineering experiments. These are great for hobbyist projects since most of them are easy to deal with. Here’s the list:
Continue ReadingSQLite Database on a Raspberry Pi
In this blog post I’ll introduce you to SQLite, which is an in-process light weight library that implements a self-contained, serverless, zero-configuration, transactional SQL database engine. SQLite is the most widely deployed SQL database engine in the world and its source code is in the public domain.
Continue ReadingRaspberry Pi Publishing MQTT Messages to ESP8266
In this project you’ll create a standalone web server with a Raspberry Pi that can toggle two LEDs from an ESP8266 using MQTT protocol. You can replace those LEDs with any output (like a relay that controls a lamp).
Continue ReadingTesting Mosquitto Broker and Client on Raspbbery Pi
In this post you’re going to test the Mosquitto Broker and Client on a Raspberry Pi by subscribing to an MQTT topic and publishing sample messages.
Continue ReadingHow to Install Mosquitto Broker on Raspberry Pi
In this post you’re going to install the Mosquitto Broker on a Raspberry Pi. The broker is primarily responsible for receiving all messages, filtering the messages, decide who is interested in it and then publishing the message to all subscribed clients.
Continue ReadingWhat is MQTT and How It Works
In this post, I’m going to introduce you to the MQTT protocol. MQTT stands for MQ Telemetry Transport. It is a nice lightweight publish and subscribe system where you can publish and receive messages as a client.
Continue ReadingESP8266 OTA Updates with Arduino IDE | Over the Air
OTA (Over the Air) update is the process of loading a new firmware to ESP8266 module using WiFi connection rather than a serial communication. This type of functionality is extremely useful in case of no physical access to the ESP module.
Continue ReadingGetting Started with ESP32 Dev Module
This is a getting started guide for the ESP32 Dev Module. If you’re familiar with the ESP8266, the ESP32 is its sucessor. The ESP32 is loaded with lots of new features the two most important: it combines WiFi and Bluetooth wireless capabilities and it’s dual core.
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