News & Updates Archives - Page 257 of 520

MAKERLISP MACHINE – AN EXPANDABLE EZ80 CPU CARD RUNNING BARE-METAL LISP

Electronics News Updates / By Ibrar Ayyub

Classic computing on modern hardware: an expandable eZ80 CPU card running bare-metal Lisp. The MakerLisp machine is a portable, modular computer system, designed to recapture the feel of classic computing, with modern hardware. The machine centers on a 2” x 3.5” business card-sized CPU, which can be used stand-alone, or plugged in to a 2” […]

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NIGHTMARE ROBOT ONLY MOVES WHEN YOU LOOK AWAY

Arduino News / By Tismail

What could be more terrifying than ghosts, goblins, or clowns? How about a shapeless pile of fright on your bedroom floor that only moves when you’re not looking at it? That’s the idea behind [Sciencish]’s nightmare robot, which is lurking after the break. The Minecraft spider outfit is just a Halloween costume. In this case, “looking

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Use a Momentary or Tactile Switch as a Pushbutton Switch

Electronics News Updates / By Ibrar Ayyub

Just a Moment Tactile switches (a specific type of momentary switch) are everywhere and they are especially popular on DIY electronics and microcontroller boards because they are well suited to act as a boot option or reset switch. Particularly, momentary switches are switches that don’t save their state when you depress the switch. That is,

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AN AUTOMATIC LABEL DISPENSER FOR QUICKER STICKERS

Arduino News / By Tismail

If you have any kind of business, chances are it involves stickers at some point in the process. More accurately it involves you peeling the backs off of sticker after sticker, slowly wasting time and working your way toward a repetitive stress injury. Why do that to yourself when you could have a machine do it

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A QUICK OVERVIEW OF THE ELTIMA VIRTUAL SERIAL PORT DRIVER

Electronics News Updates / By Ibrar Ayyub

If you have used some form of hardware especially those legacy ones or something like the Arduino and other embedded systems you must have come across the term Serial Port, FTDI chip, USB to Serial, or RS232 at some point. So what are those? Well, they mean the same thing – Serial Communication Serial Port is

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MINATURE OPTICAL GYROSCOPE IS SMALLER THAN A GRAIN OF RICE

Electronics News Updates / By Ibrar Ayyub

Gyroscopes are present in virtually any modern electronic gadget. They re used in a host of techs, like cell phones, vehicles, drones and wearables. The gyroscopes used presently in our phones will most likely be MEMS-based. Caltech, has gone some extra miles, by successfully developing a new type of gyroscope that is 500 times smaller and 30

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COMPLETE FLIGHT SIM CONTROLLER SET WITH 3D PRINTING AND HALL-EFFECT SENSORS.

Arduino News / By Tismail

[Tom Stanton] has been playing Microsoft Flight Simulator a lot recently, and decided his old desktop joystick needed an upgrade. Instead of just replacing it with a newer commercial model, he built a complete controller system with a long joystick that pivots at floor level, integrated rudder pedals and a throttle box. You can see it in

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THE CLOCK UNDER THE DOME

Arduino News / By Tismail

In what can only be described as a work of art, [suedbunker] has created a clock under a glass dome. Sporting Nixie tubes, a DS3223, BCD encoders, and MPSA43 transistors driven by an MCP23008 I/O expander it is truly a sight to behold. [suedbunker] has previously created the Circus Clock, a similar clock that celebrated a diversity

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A TRANSISTOR-LESS SOUND SYNTHESIZER

Arduino News / By Tismail

A synthesizer without transistors could almost be the basis of a trick question, surely without transistors it must be using a vacuum tube or similar. Not [Dr. Cockroach]’s synth though, instead of transistors it uses coupled pairs of LEDs and light-dependent resistors as its active components. Its oscillator circuit comes courtesy of [Patrick Flett], and uses

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DON’T GUESS, LISTEN TO YOUR PLANTS’ PLEAS FOR WATER

Arduino News / By Tismail

Plants are great to have around, but they all have different watering needs. If only they could cry out when they’re thirsty, right? Well, now they can. All you need to hear them suffer is your very own Klausner Machine. [RoniBandini] based the Klausner machine on one of Roald Dahl’s short stories, which features an

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