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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.


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."

How to use a DS18B20 (single or multiple on one wire) for temperature measurement using the Arduino Uno.

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 (single or multiple on one wire) for temperature measurement using the Arduino Uno."

Eye Tracking System

Eye tracking : How to detect the gaze of your eye and track where you are looking.

Continue reading "Eye Tracking System"

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"

Pothole Repair System

Pothole repair system : How to make a system that senses a pothole in a road an automatically repairs it.

Continue reading "Pothole Repair System"

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"

Ultrasonic Ground Speed Sensor

Ultrasonic ground speed sensor : How to use ultrasound to measure speed of movement across gound.

Continue reading "Ultrasonic Ground Speed Sensor"

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"

Magnetic Potentiometer

Magnetic potentiometer : How to create a potentiometer that does not use resistance.

Continue reading "Magnetic Potentiometer"

A PIC Serial LCD project.

How to create a serial LCD module using the PIC microcontroller's built in USART.

Continue reading "A PIC Serial LCD project."

Ultrasonic Air Flow Speed Sensor

Ultrasonic air flow speed sensor : How to detect the flow of air using sound.

Continue reading "Ultrasonic Air Flow Speed Sensor"

Flame Detector Circuit

Flame detector circuit : How to use UV light to detect a flame.

Continue reading "Flame Detector Circuit"

Gem Tester Circuit

Gem tester circuit : How to test whether your gems are real using conductivity.

Continue reading "Gem Tester Circuit"

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."

Alkaline Battery Charger

Alkaline battery charger : How to make a simple dry cell alkaline battery charger circuit

Continue reading "Alkaline Battery Charger"

Chemical Concentration Controller

Chemical concentration controller : How to detect and control chemical concentration in a solution using an electronic circuit.

Continue reading "Chemical Concentration Controller"

Tornado Detector Circuit

Tornado detector circuit : Automatic tornado detector circuit using a microphpne, some filters and a microprocessor (or microcontroller)

Continue reading "Tornado Detector Circuit"

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Recent Articles

  1. 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.

    Read more

  2. 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.

    Read more

  3. How to use a DS18B20 (single or multiple on one wire) for temperature measurement using the Arduino Uno.

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

    Read more