he purpose of this article is how to generate analog voltage with digital circuit. Although the market provides today a very broad range of dedicated digital-to-analogue converters, putting such a device in the schematic has a negative impact on the overall cost of the system. There are however, cheap methods of creating the required voltage […]
Generating Analog Voltage with Digital Circuit Read More »
I wanted to probe a PCB at work to see how a ~500MHz differential clock was behaving. My trusty 100MHz oscilloscope was no use, it was too slow to see anything and unfortunately I couldn’t quite justify buying a $3k differential probe for my faster scope just for this. There are a bunch of DIY
An almost-GHz active differential oscilloscope probe Read More »
This is the fourth synthesizer cable I’ve built, the first three being based on the ATtiny85. I have been looking into ARM chips but haven’t gotten to grips with them just yet. Instead, I decided go back to the ATtiny2313, which has a quarter of the memories of the tiny85, but a hardware UART port
Polyphonic Synth Cable Read More »
I recently bought a 500ppm LCR meter from Elektor because I didn’t have anything for measuring inductors or the ESR (equivalent series resistance) of capacitors, both of which are important for modern electronics, particularly switch mode regulators that have become ubiquitous. It is also more accurate than any of my multimeters and has wider measurement
Elektor 500ppm LCR meter case tips Read More »
ON Semiconductor, driving innovation in energy efficiency, has introduced a new MP3 capable device to support both record and playback in portable MP3 audio applications where there is a strong requirement for miniaturization, reduced bill of materials (BoM) and reduced cost. The LC823430TA audio processing system provides a single-chip solution by integrating digital signal processing
MP3 player on a chip from On Semi Read More »
A Coventry-based company which develops digital printing systems used in high resolution photographic printing believes the system has the resolution to print electronic circuits. LumeJet, a spin-out from Warwick University, developed a three-colour RGB digital print head which is used in an inkless digital photographic printer. The company plans to use the printing technology for
UK firm uses LED array to print electronics Read More »
Researchers have developed a device that uses your smartphone to monitor your stress levels. The device can use any smartphone to measure the cortisol concentration in saliva in less than 10 minutes, researchers said. “We have developed a method for measuring cortisol in saliva using a smartphone and a disposable test strip. This innovation enables
New Device Measures Stress Levels Using Smartphones Read More »
Seoul, Korea, Feb 16th, 2016 – LG Innotek, a leading global components and materials manufacturer, announced the development of an ultra slim optical bio sensor module with the world class level of performance. The optical bio sensor module is mainly adopted wearable devices and smartphones to measure heart rates, stress indices, and oxygen saturation levels.
LG Innotek Develops Ultra Slim Optical Bio Sensor Module Read More »
I recently bumped into NodeMCU firmware for the ESP8266. It’s an Lua interpreter, making tinkering with IoT ideas really simple. Just flash the firmware onto the ESP8266 and connect via serial console. You can start prototyping right away using the interactive Lua interpreter. You can easily persist your ideas on a simple flash file system.
Low Power ESP8266 – Sleeping at 78 micro Amps Read More »
This is a simple digital counter with a serial rs-232 and a 7 segment display, i started this project to count items on some shelfs, but it can be used for anything, it is also, for the exception of the connectors, completely on SMD components. The circuit is made around a PIC16F88, and takes use
UP/DOWN counter with memory Read More »
