Connecting two parts of a system becomes complicated when your signals are up in the gigahertz range. Let’s take a look at some new cabling options.
Connecting two parts of a system becomes complicated when your signals are up in the gigahertz range. Let’s take a look at some new cabling options.
This article shows you two ways to use a Raspberry Pi Zero Wireless to track flights in your area. It also demonstrates…
This article shows you two ways to use a Raspberry Pi Zero Wireless to track flights in your area. It also demonstrates how it can control a 64×64 RGB matrix.
This BIG piano will help exercise the mind and body! All you need is a few buttons, a speaker, and some dancing shoes.
This BIG piano will help exercise the mind and body! All you need is a few buttons, a speaker, and some dancing shoes.
Even a genius like Tesla couldn't escape the market rules of product success: Be first to market, offer good value, and…
Even a genius like Tesla couldn't escape the market rules of product success: Be first to market, offer good value, and best the competition.
This article introduces the RS-422 and RS-485 interfaces and explains why you might want to use them in your designs.
This article introduces the RS-422 and RS-485 interfaces and explains why you might want to use them in your designs.
How do designers cope with a system that has highly variable input amplitude yet requires fairly constant output…
How do designers cope with a system that has highly variable input amplitude yet requires fairly constant output amplitude? Let’s take a look.
Wireless Power Transfer holds the promise of freeing us from the tyranny of power cords. This technology is being…
Wireless Power Transfer holds the promise of freeing us from the tyranny of power cords. This technology is being incorporated into all kinds of devices and systems.
Tutorial on designing a Bluetooth Low Energy (BLE) circuit with the ability to measure 9-axis motion, humidity, and temperature.
Tutorial on designing a Bluetooth Low Energy (BLE) circuit with the ability to measure 9-axis motion, humidity, and temperature.
Antennas allow information to be transferred to distant locations. In the second part of this Antenna Basics series, you…
Antennas allow information to be transferred to distant locations. In the second part of this Antenna Basics series, you will learn more about the physics of how antennas work.
Antennas are used to transmit and receive electromagnetic energy. This article covers basic antenna theory.
Antennas are used to transmit and receive electromagnetic energy. This article covers basic antenna theory.
Here's a rain gauge that empties itself and that you can read from your easy chair. Best of all, you can build it, yourself.
Here's a rain gauge that empties itself and that you can read from your easy chair. Best of all, you can build it, yourself.
A tipping bucket rain gauge is a clever way to measure rainfall. Learn how to add wireless capability, a PICAXE…
A tipping bucket rain gauge is a clever way to measure rainfall. Learn how to add wireless capability, a PICAXE microcontroller, and an LCD display to your weather station.
A tipping bucket rain gauge, an RF transmitter and receiver, a PICAXE microcontroller, and an LCD can make a great…
A tipping bucket rain gauge, an RF transmitter and receiver, a PICAXE microcontroller, and an LCD can make a great addition to your weather station.
In this article, we are going to learn some basics about RFID technology and use an Arduino MEGA to a play around with a…
In this article, we are going to learn some basics about RFID technology and use an Arduino MEGA to a play around with a popular RFID module, the ID12LA.
This two-part project will begin by showing you how to create a robot base from a used electric wheelchair. Part 1…
This two-part project will begin by showing you how to create a robot base from a used electric wheelchair. Part 1 creates a simple robot platform for use with remote control. Part 2 will develop a platform for use with and Arduino.
Combine the Si4844-A10 analog-tuned radio receiver with an Arduino to make a full-featured multiband radio.
Combine the Si4844-A10 analog-tuned radio receiver with an Arduino to make a full-featured multiband radio.
For a local area network (LAN) to provide good coverage, improved antennas are often a better (and less expensive) option…
For a local area network (LAN) to provide good coverage, improved antennas are often a better (and less expensive) option than more access points. Directional antennas are sometimes the better choice, but often omnidirectional gain antennas will work well.
Amateur radio operators ("hams") have long said, "If you want a bigger signal, put up more metal and put it up higher."…
Amateur radio operators ("hams") have long said, "If you want a bigger signal, put up more metal and put it up higher." Antennas for Wi-Fi are no exception.
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.
Use a laser and a photo resistor to build a laser based point-to-point communication system. The best part? It's under $10.
Use a laser and a photo resistor to build a laser based point-to-point communication system. The best part? It's under $10.
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