[Engineer2you] built a nixie tube clock and claims it is the simplest design. We felt like that was a challenge. In this design, the tubes are set up as a matrix with optoisolators on each row and column. With 60 segments, the matrix allows you to control it all with 16 bits. There are six columns, each […]
NIXIE CLOCK CLAIMS TO BE SIMPLEST DESIGN Continue Reading
[Harrison] has been busy finding the sweeter side of quarantine by building a voice-controlled, face-tracking M&M launcher. Not only does this carefully-designed candy launcher have control over the angle, direction, and velocity of its ammunition, it also locates and locks on to targets by itself. Here comes the science: [Harrison] tricked Alexa into thinking the Raspberry
ALEXA, SHOOT ME SOME CHOCOLATE Continue Reading
A wave tank is a laboratory setup for observing the behavior of surface waves. The typical wave tank is a box filled with liquid, usually water, leaving open or air-filled space on top. At one end of the tank an actuator generates waves; the other end usually has a wave-absorbing surface. Usually these tanks cost
DIY Wave Tank/flume Using Arduino and V-slot Continue Reading
Multirotors, or drones as they’re popularly called, are so ubiquitous as to have become a $10 toy. They’re no less fun to fly for it though, and learning how they work is no less fascinating. It’s something [Science Buddies] has addressed in a series of videos examining them from first principles. They may be aimed at
LEARN MULTIROTORS FROM FIRST PRINCIPLES Continue Reading
The ability to move in any direction and turn on the spot is a helpful feature on robots that operate indoors around other objects. [James Bruton] demonstrated one possible solution in the form of a robot chassis that can move in any direction with three ball-shaped wheels. The video after the break is part two of
ROBOT MOVES IN ANY DIRECTION ON BALL WHEELS Continue Reading
One of the worst things about sewing is finding out that your bobbin — that’s the smaller spool that works together with the needle and the larger spool to make a complete stitch — ran out of thread several stitches ago. If you’re lucky, the machine has a viewing window on the bobbin so you
ARDUINO BOBBIN WINDING MACHINE IS FREAKY FAST Continue Reading
Texas Instruments’ 500 mW, high-efficiency low-EMI converters are suitable for ultra-high voltage applications. Texas Instruments’ UCC12040 and UCC12050 DC/DC converters with 3 kVRMS and 5 kVRMS reinforced isolation ratings, respectively, are designed to provide efficient, isolated power to isolated circuits that require a bias supply with well-regulated output voltages. These devices integrate a transformer and DC/DC controller with proprietary architecture
UCC12040/50 3 KVRMS AND 5 KVRMS ISOLATED DC/DC CONVERTERS Continue Reading
Murata unveiled the MYWGC series from the MonoBK™ DC/DC converter family. The new point-of-load (POL) modules offer a 50-percent smaller footprint than competing solutions and set new standards in size, efficiency and performance. The highly integrated, multi-output DC/DC converters leverage Murata’s core technology advantages in power module development, advanced 3D integrated packaging and passive component
NEW DC/DC CONVERTERS OFFER 50 PERCENT SMALLER FOOTPRINT Continue Reading
Flex Power Modules has added to its range of miniature isolated DC/DC converters intended for industrial applications with the introduction of the PUB-2M series. Delivering an output power of up to 2W with no minimum load required, the high performance product is available in single or dual output options. Presented in a compact SMD (surface mount device) package measuring
FLEX POWER MODULES EXTENDS 2W DC/DC CONVERTER SOLUTIONS FOR INDUSTRIAL USE Continue Reading
This USB sound card that presents itself as C-Media is one of the cheapest sound cards available with price $1.1-$2 depending on vendor. Device markings: HX2010-0705, production date 40th week of 2013 (or later?). Device enumerates as composite device: sound card + HID input. HID input part is used for audio volume and mute control
Choosing $1 sound card for DC-capable low speed oscilloscope Continue Reading
