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The Microcontroller Blog

The microcontroller blog keeps you up-to-date with all additions and changes to the best-microcontroller-projects.com Web site.


Arduino Battery Charger: How to save the planet one battery at a time; Recycle and re-use Alkaline battries

Arduino Battery Charger: A very useful project that lets you charge 'un-rechargeable' alkaline batteries!

Continue reading "Arduino Battery Charger: How to save the planet one battery at a time; Recycle and re-use Alkaline battries"

[Arduino Tutorial] : How to use the 74HC595 shift register.

The Essential Guide to the 74HC595; What it is and how you can easily use one in any of your projects.

Continue reading "[Arduino Tutorial] : How to use the 74HC595 shift register."

How to use the MCP23017 I/O Expander on the Arduino

How to use the MCP23017 to increase your I/O by 16 pins (or more) and use its interrupt system.

Continue reading "How to use the MCP23017 I/O Expander on the Arduino"

The Essential I2C Tutorial: All you need to know about I2C...

How to use I2C. In this tutorial you will learn all about the 2 wire I2C serial protocol. Learn how easy it is to use, how it works and when to use it...

Continue reading "The Essential I2C Tutorial: All you need to know about I2C..."

How RS232 Works: The Easy Guide to RS232.

How RS232 Works: What exactly is RS232 and how does it work? - Find out Here!

Continue reading "How RS232 Works: The Easy Guide to RS232."

How to use a DS18B20 on the Arduino for easy temperature measurement

How to Easily Use the DS18B20 Maxim One-Wire thermometer with Arduino example code showing external or parasitic power modes.

Continue reading "How to use a DS18B20 on the Arduino for easy temperature measurement"

Digital I/O Expansion - How to increase your microcontroller Input and Output pins.

Digital I/O expansion. Several diferent serial design techniques with different tradeoffs to increase the number of input or output pins in your microcontroller design.

Continue reading "Digital I/O Expansion - How to increase your microcontroller Input and Output pins."

How to use the BMP280 Barometric Pressure chip with the Arduino

How to use the BMP280 for weather pressure measurement or altitude change detection.

Continue reading "How to use the BMP280 Barometric Pressure chip with the Arduino"

How to use the SSD1306 OLED LCD.

Easily use the SSD1306 in any of your projects.

Continue reading "How to use the SSD1306 OLED LCD."

Logic Level Converters made easy

How to easily make a logic level converter e.g. between 3V and 5V.

Continue reading "Logic Level Converters made easy"

Hitachi HD44780: A very Useful Guide to using 1602 LCD displays.

Use an Hitachi HD44780 as a simple display for any project.

Continue reading "Hitachi HD44780: A very Useful Guide to using 1602 LCD displays."

Easily make an IR Pulse Rate Sensor with one opamp, an Arduino, and a matched Infrared phototransistor and LED pair.

How to make a Pulse Rate Sensor using a simple single opamp circuit with an Arduino and a few other components.

Continue reading "Easily make an IR Pulse Rate Sensor with one opamp, an Arduino, and a matched Infrared phototransistor and LED pair."

MAX6675 Simple Arduino Tutorial for measuring up to 1024°C

Showing you the easiest way to setup your MAX6675 and Type-K thermocouple with an error table showing you how to get the best results

Continue reading "MAX6675 Simple Arduino Tutorial for measuring up to 1024°C"

How to use the DHT22 (or DHT11) with an Arduino; full code and description. Also including a comparison of the DHT11 vs DHT22.

The Essential Guide to the DHT22/11 humidity sensor including a library code guide for the Arduino. Learn how to determine Humidity, Dew point and Heat Index.

Continue reading "How to use the DHT22 (or DHT11) with an Arduino; full code and description. Also including a comparison of the DHT11 vs DHT22."

How to Use the MAX7219 to drive an 8x8 LED display Matrix on the Arduino.

The Essential Guide to the MAX7219; What it is and how you can easily use one in any of your projects.

Continue reading "How to Use the MAX7219 to drive an 8x8 LED display Matrix on the Arduino."

The best Microcontroller projects and resources.

Do you want to learn how to use a microcontroller in your electronic projects or do you need inspiration for your next project? If so you have found the right place!

Continue reading "The best Microcontroller projects and resources."

Digital Signal Audio Circuit

How to identify the end of a programming sequence using a signal listening circuit.

Continue reading "Digital Signal Audio Circuit"

Blind Spot Detector

Blind spot detector : How to make a device to warn you of a car in the blind spot where your mirror can not see.

Continue reading "Blind Spot Detector"

Infrared Audio Transmitter System

Infrared audio transmitter system : How to make an infrared assisted hearing audio transmitter circuit

Continue reading "Infrared Audio Transmitter System"

Nail Finder Circuit

Nail Finder Circuit: How to find nails in walls using a radar circuit not electromagnetic (very simple).

Continue reading "Nail Finder Circuit"

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Recent Articles

  1. Arduino Battery Charger: How to save the planet one battery at a time; Recycle and re-use Alkaline battries

    Arduino Battery Charger: A very useful project that lets you charge 'un-rechargeable' alkaline batteries!

    Read more

  2. [Arduino Tutorial] : How to use the 74HC595 shift register.

    The Essential Guide to the 74HC595; What it is and how you can easily use one in any of your projects.

    Read more

  3. How to use the MCP23017 I/O Expander on the Arduino

    How to use the MCP23017 to increase your I/O by 16 pins (or more) and use its interrupt system.

    Read more

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