Latest Technical Articles

An overview of how the concepts of electron flow and the role of individual circuit components can be related to the flow…

An overview of how the concepts of electron flow and the role of individual circuit components can be related to the flow of fluid in pipe networks. The analogy between hydraulics and electricity is a useful tool for teaching and for those who are struggling to understand how circuits work.

Explanation of what a transmission line is, and the conditions under which it exists. Uses lumped element model to derive…

Explanation of what a transmission line is, and the conditions under which it exists. Uses lumped element model to derive differential equations and manipulates the equations to get telegraph equations. Uses solutions to telegraph equations to get characteristic impedance and propagation constant and looks at matched and unmatched load cases.

Having introduced the general negative feedback structure, we will now demonstrate that negative feedback has a…

Having introduced the general negative feedback structure, we will now demonstrate that negative feedback has a beneficial effect on two important characteristics of amplifier circuits.

Part four of a series of articles on building a robot that can follow lines or walls and avoid obstacles!

Part four of a series of articles on building a robot that can follow lines or walls and avoid obstacles!

Learn how to put together your own toaster oven controller with a handful of inexpensive, through-hole parts. The…

Learn how to put together your own toaster oven controller with a handful of inexpensive, through-hole parts. The emphasis is on safety, low price, and minimal modification of the toaster oven.

Texas Instruments' LaunchPad makes developing applications with MSP430 microcontrollers easy and fast. Learn all about it…

Texas Instruments' LaunchPad makes developing applications with MSP430 microcontrollers easy and fast. Learn all about it and create your first application.

This article, the first in a series, will introduce you to the fundamental concepts required for understanding and…

This article, the first in a series, will introduce you to the fundamental concepts required for understanding and analyzing negative feedback amplifiers.

NAND and NOR gates are widely known to be universal logic gates, meaning that any other logic gate be made from NAND or…

NAND and NOR gates are widely known to be universal logic gates, meaning that any other logic gate be made from NAND or NOR gates. This article discusses other universal logic gates.

This handy introduction teaches you all about the RFM69HW transceiver module using two circuits running a wireless…

This handy introduction teaches you all about the RFM69HW transceiver module using two circuits running a wireless version of the "blinky" code.

What linear voltage regulator circuits lack in efficiency, they make up in simplicity and low noise. Here's a scheme for…

What linear voltage regulator circuits lack in efficiency, they make up in simplicity and low noise. Here's a scheme for 9 voltages from 2.5V to 15V on the same PCB design.

Part three of a series of articles on building a robot that can follow lines or walls and avoid obstacles!

Part three of a series of articles on building a robot that can follow lines or walls and avoid obstacles!

Part two of a series of articles on building a robot that can follow lines or walls and avoid obstacles! This time we'll…

Part two of a series of articles on building a robot that can follow lines or walls and avoid obstacles! This time we'll be covering PCB design.

Learn how to use a rotary encoder in an Arduino project. Rotary encoders are electromechanical, electro-optical or…

Learn how to use a rotary encoder in an Arduino project. Rotary encoders are electromechanical, electro-optical or electro-magnetic devices which convert rotational motion into digital or analog information.

Part one of a series of articles on building a robot that can follow lines or walls and avoid obstacles!

Part one of a series of articles on building a robot that can follow lines or walls and avoid obstacles!

Learn how to use a 433MHz RF module with an ATMega 328P-PU. In this article, we'll make a circuit with a DHT11 sensor and…

Learn how to use a 433MHz RF module with an ATMega 328P-PU. In this article, we'll make a circuit with a DHT11 sensor and a RF transmitter. We'll also make a receiving circuit with a 433MHz RF receiver and an LCD display.

This analog design allows your LEDs to respond to your music. Just plug your music source into this which sends a channel…

This analog design allows your LEDs to respond to your music. Just plug your music source into this which sends a channel to your sound system and some LEDs.

Updating the firmware in an ESP8266 Wi-Fi module can be frustrating! Here's a procedure to reduce the pain.

Updating the firmware in an ESP8266 Wi-Fi module can be frustrating! Here's a procedure to reduce the pain.

Learn to use an Arduino to read NFC tags and write information on them! Near field communication protocols are what…

Learn to use an Arduino to read NFC tags and write information on them! Near field communication protocols are what electronic devices can use to communicate and transfer data between each other.

With this microcontroller-to-PC interface you can conveniently monitor a temperature and visualize how the temperature…

With this microcontroller-to-PC interface you can conveniently monitor a temperature and visualize how the temperature changes over time.