App note: Protecting USB Type-C Cable connectors featuring higher power & tighter pin spacing
Bourns’ built-in thermal cut-off devices adds extra protection from faults directly on USB Type-C cables. More info
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“glixie” Puts a New Spin on Glow-in-the-dark Displays
For as many projects as we see using Nixie tubes in new and unusual ways, there’s a smaller but often very interesting cohort of displays that fit into the “Nixie-like” category. These are projects where something other than the discharge of noble gasses is being used to form characters. This scrolling phosphorescent single-character display is one…
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Memories in Digital Electronics – Classification and Characteristics
The amount of information our brain can accept and store is fantastic. Similarly, there is a concept of digital memories in the world of computers that helps them store data. In computers, memory is the most essential component for the normal functioning of any system – to store data, to perform calculations, to do complex…
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Turn a Nerf Gun to a Nerf Gauntlet
https://youtu.be/6sGlui5mTlI As a Nerf enthusiast and inventor I have always wondered why there was never an electrical Nerf gauntlet made, So I decided to make my own, and what better way to make a Nerf gauntlet then to use a preexisting Nerf Gun. I call it the Nerf Rival assist and it is the…
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PoE-Powered VFD tube clock
https://youtu.be/TnCH3Bg95Ik This is a vintage VFD tube clock that uses Ethernet for both power and data. The power is provided using 802.3at PoE+ and a Molex PD Jack that contains both integrated magnetics and a PoE Type 2 PD controller. The IP stack runs on a Microchip PIC18F67J60 microcontroller that has an integrated Ethernet…
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An experimental HF 6-band SSB transceiver
An SSB radio for the HF bands will be presented. Featuring 12 to 20 Watts of output power (depending on DC supply), full DDS frequency generation, covering 6 major frequency bands (1.8, 3.5, 7, 14, 21 and 28 MHz) within the short wave amateur radio spectrum. The rig also features colored LCD and front panel…
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PIR based burglar alarm using DigiSpark
Hey guys, welcome back, In the previous post, I told you how an IR sensor works, how to make a line follower using an IR sensor and to make a Simple DIY Burglar Alarm using an IR sensor and a Buzzer without using any micro controller or complicated coding. More info
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Build a DMX FeatherWing to control lights with a Feather M0
This project uses an Adafruit Feather M0 Basic Proto board to control a group of Color Kinetics or other RGB light fixtures using the DMX-512 protocol. We’ll build a DMX-512 interface FeatherWing then connect it to the Feather M0 using a Particle Ethernet FeatherWing. Once the hardware is built and assembled, we’ll write software with a…
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The core memory inside a Saturn V rocket’s computer
The Launch Vehicle Digital Computer (LVDC) had a key role in the Apollo Moon mission, guiding and controlling the Saturn V rocket. Like most computers of the era, it used core memory, storing data in tiny magnetic cores. In this article, I take a close look at an LVDC core memory module from Steve…
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SET OF 100 BLUE LEDs
100 pcs Ultra Bright 5mm Round LED Diode, color Blue. Current 5-20 mA… Go to Open-Electronics Store
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Maker Faire Rome is back on December!
Mark it on the agenda: Maker Faire Rome 2020 is the place to be next winter. On site? Online? We can’t tell you yet. Surely though, it will be “onlife”. True to be told, the situation is still uncertain: will we be able to physically meet? Maybe. Maybe not. Perhaps. we will be required…
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A portable rotary phone with ePaper display
Why a rotary cellphone? Because in a finicky, annoying, touchscreen world of hyperconnected people using phones they have no control over or understanding of, I wanted something that would be entirely mine, personal, and absolutely tactile,while also giving me an excuse for not texting. The point isn’t to be anachronistic. It’s to show that it’s…
