IDT ZMOD4410 Metal Oxide Gas Sensors are designed to detect Total Volatile Organic Compounds (TVOC) and monitor Indoor Air Quality (IAQ). The ZMOD4410 gas sensors consist of a signal conditi... Read more
I am the theatrical technical director for a local high school. Their winter production was “Disney’s High School Musical”. During meetings with the director, he said it would be cool if he... Read more
This weekend marked the 49th anniversary of the legendary Intel 4004 microprocessor, and to celebrate [Erturk Kocalar] combined the old and new in this intriguing Retroshield 4004 / Busicom... Read more
To get started with Arduino, you’ll need some basics. In this tutorial, we’ll go beyond a little blinky light and teach you about: Variables Input and Output pins Sensors and rea... Read more
Vdd brownouts are among the most common antipodes of microcontroller design – they are especially annoying, as their presence is not easy to detect. Diodes Incorporated provides a new family... Read more
This Arduino based digital clock is synchronized by the 60Hz power line. It has a simple and inexpensive common anode 4 digit 7 segment display which shows hours and minutes. It uses a cross... Read more
In the very early days of the PC revolution the only way to have a computer was to build one, sometimes from a kit but often from scratch. For the young, impoverished hobbyist, leafing throu... Read more
Introduction Sometimes, it is necessary to add a temperature indicator into your projects. Therefore, in this tutorial you will learn how to hack your analog Voltmeter and convert into an an... Read more
The 74181 ALU (arithmetic/logic unit) chip powered many of the minicomputers of the 1970s: it provided fast 4-bit arithmetic and logic functions, and could be combined to handle larger words... Read more
A computer’s arithmetic-logic unit (ALU) is the heart of the processor, performing arithmetic and logic operations on data. If you’ve studied digital logic, you’ve probably... Read more
What’s inside a TTL chip? To find out, I opened up a 74181 ALU chip, took high-resolution die photos, and reverse-engineered the chip.1 Inside I found several types of gates, implement... Read more
The DueProLogic makes programmable logic easy with an all inclusive development platform. It includes an Altera Cyclone IV FPGA, on board programming, four megabit configuration flash, and a... Read more