The Goals Sometimes you need to check one circuit and test some of its nodes. Usually a tester in voltage mode is a good solution, but it has a pair of problems. First, it measures about zero both when the node is driven at zero volts and when the node is floating (not driven at […]
Finally, PULP, goes multicore! We are happy to launch our flagship RISC-V-based parallel-ultra low power open source system. Simply put, OPENPULP, today’s new kid in town, is the most advanced open-source release we have done so far, and a quantum leap ahead in terms of performance, efficiency and completeness. OPENPULP is an MCU on steroids:
PULPino – An open-source microcontroller system based on RISC-V Continue Reading
Creating an OTP fob compatible with Google Authenticator using an Espruino Pico Now that the Espruino Pico has (beta) HID support, it can pretend to be a keyboard or mouse (or other HID compatible device). This makes it possible to send characters to the active window on your Windows/Linux/Mac PC. I’ve cobbled together some code
Time-based One-time Password fob for Google Authenticator Continue Reading
I’ve been in the electronics and computing industries ever since I graduated with my BSc from Sheffield Hallam University in the UK back in 1980. Since that time, I’ve designed all sorts of weird and wonderful things (some of which even worked), including my fair share of printed circuit boards (PCBs). I’ve also been associated
The incredible story behind the Gerber PCB file format Continue Reading
During the last months, a new WS2812 alternative appeared on the market: The SK6812. I finally managed to get my hands on some of them to take a closer look. In most aspects these devices are basically clones of the WS2812. What is interesting however, is that the manufacturer came up with a couple of
With a simple knowledge of Arduino and Voltage Divider Circuit, we can turn the Arduino into Digital Voltmeter and can measure the input voltage using Arduino and a 16×2 LCD display. Arduino has several analog input pins that connect to an Analog-to-Digital converter (ADC) inside the Arduino. The Arduino ADC is a ten-bit converter, means
Accelerating data rates, greater design complexity, standards requirements, and shorter cycle times put greater demand on design engineers to debug complex signal integrity issues as early as possible. Because today’s serial data links operate at gigahertz transmission frequencies, a host of variables can affect the integrity of signals, including transmission-line effects, impedance mismatches, signal routing,
Eye Diagram Basics: Reading and applying eye diagrams Continue Reading
A BIG HELLO! and welcome to Mixed Outputs first instructable. As most of my project involve electronics of some sort, having a good power supply is essential to be able to meet the demand of different power requirements. So I built me a bench-top power supply from an old ATX power supply Unit (PSU) that
Step 1: Introduction In this Instructable I am going to attempt to show you how to put together a little project to use the Blynk app (optainable at http://www.blynk.cc/) to display the temperature remotely on a iOS or Android device. I came across an posting on my Google+ where somebody required some help with this.
Arduino DS18B20 Thermometer on iOS or Android Continue Reading
Have you worked with ready-made 8×8 LED matrix as displays? They come in various sizes and are quite interesting to work with. A large readily available size is around 60mm x 60mm. However, if you are looking for a much larger ready-made LED matrix, you may be out of luck. For this project, we will
