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How to Make a Magic Mirror with Raspberry Pi

“If you follow the SparkFun Blog, you may have seen my post about my attempts to keep up with my family’s ever changing schedule. With schooling and summer camps going online and both myself and my partner working from …

HV Nixie DC-DC Switching Power Supply using MAX1771

“Nixie tubes need about ~180Vdc to light up and thus on most devices, a DC-DC converter is needed. Here we designed a simple DC-DC switching regulator capable of powering most of Nixie tubes. The board accepts 12Vdc input …

Inside the Am2901: AMD’s 1970s bit-slice processor

“You’re probably familiar with modern processors made by Advanced Micro Devices. But AMD’s processors go back to 1975, when AMD introduced the Am2901. This chip was a type of processor called a bit-slice processor: each chip processed just …

Intel Announces Unmatched AI and Analytics Platform with New Processor, Memory, Storage and FPGA Solutions

“Intel today introduced its 3rd Gen Intel® Xeon® Scalable processors and additions to its hardware and software AI portfolio, enabling customers to accelerate the development and use of artificial intelligence (AI) and analytics workloads running in data center, network and …

KUBeetle-S: An insect-inspired robot that can fly for up to 9 minutes

“Researchers at Konkuk University in South Korea recently created KUBeetle-S, a flying robot inspired by a species of horned beetle called Allomyrina dichotoma, which is among the largest insects on the planet. Allomyrina dichtoma weighs approximately 5 to 10 g …

Project  lab-balance

lab-balance

“This project aims to replace the electronics contained within a cheap scale from AliExpress to archive a higher resolution and hackability. Furthermore I need a scale which does not turn off after 30 seconds of use! The goal is not …

Project  LED candles

LED candles

“These candles flicker like a real candles and can be activated with real flame Flame (or heat) detection is based on temperature dependence of the LED’s forward voltage. This voltage is measured (at very low LED current) by internal …

Low cost Carbon Monoxide meter

“Today Carbon Monoxide (CO) meters are available in different forms. Overall, Carbon Monoxide meters sense CO fast and display the amount to the user and trigger alarm if it reaches a critical level. Compare with most of the DIY Carbon …

mains frequency measurement unit

“The circuit board presented here enables the exact mains frequency measurement of the power supply system (50 Hz and 60Hz). It is universally constructed and can be operated with a RaspberryPi 3/4 as well as with a USB-TTL …

Make It So! Star Trek TNG Mini Engineering Computer

“This is a working display based on Star Trek TNG. Uses APIs and sensors for weather, VOCs, power measurement, calendar, fitness, and news. Overview I grew up watching Star Trek: The Next Generation. I’ve always wanted to build a …