Video: Talk MIDI with the Bus Pirate on Talk Like a Pirate Day

Here’s a video tutorial on how to set up the Bus Prate for the MIDI protocol from Bent-Tronics: Until now there hasn’t been much on the interwebs on how to set up the Dangerous Prototypes Bus Pirate for decoding MIDI data. Here’s my contribution, which happens to be on International Talk Like a Pirate Day. More […]

Make the world’s cheapest MIDI tester

Jesse from Bent-Tronics has posted a tutorial on how to make a DIY MIDI tester: A quick and dirty (and cheap) MIDI tester.  Sometimes you just need to know if a MIDI controller is outputting anything. Even many high-end MIDI modules/boxes will have a “MIDI Activity” light, just to let you know something is being transmitted/received. That’s […]

How to build a control circuit with adjustable working time via wi-fi

Yahya Tawil over at All About Circuits posted a detailed how-to on building a control circuit with adjustable working time via Wi-Fi: In this article, you’ll learn how to build a system that can turn DC loads on and off using a mobile application. You’ll also learn how to perform this task via immediate actions or via […]

Neoway M590 GPRS tutorial: sending and receiving files from/to SD card

Neoway M590 GPRS tutorial on sending and receiving files from/to SD card from Vadim Panov: Here’s a bit of useful info from what I’ve been doing lately. I got a job to design a device that connects to a web-server via GPRS and downloads a bunch of tiny WAV files, that it later plays on […]

Getting started with OPENOCD using FT2232H adapter for SWD debugging

Yahya Tawil wrote a tutorial about flashing EFM32 MCUs with OpenOCD using FT2232H adapter: Learn how to make flashing your ARM-based MCU easy by using OpenOCD debugger with an FT2232H adapter. Old MCUs from vendors like ATMEL and MICROCHIP, like the PIC16F and Atmega family, tend to have a special programming interface to program internal […]

Raspberry Pi web server using flask to control GPIOs

Rui Santos from Random Nerd Tutorials writes: In this project you’ll create a standalone web server with a Raspberry Pi that can toggle two LEDs. You can replace those LEDs with any output (like a relay or a transistor). In order to create the web server you will be using a Python microframework called Flask. […]

Using BMP180 for temperature, pressure and altitude measurements

Raj from Embedded Lab has posted a comprehensive tutorial on how to use BMP180 for temperature, pressure, and altitude measurements: The BMP180 is a new generation digital barometric pressure and temperature sensor from Bosch Sensortec. In this tutorial, we will briefly review this device and describe how to interface it with an Arduino Uno board for […]

How do I FPGA?

TC-Engineering writes: I’ve been thinking about building stuff with FPGA’s for a while, and usually get turned away because FPGA’s are considerably harder to implement than microcontrollers since they have no on-chip memory. It is necessary to re-program the gates every time they power up, which requires an external flash memory chip. There aren’t great […]

ESP8266 – Wireless weather station with data logging to Excel

Rui Santos writes, “In this project we are going to establish a wireless communication between two ESPs and send data from three sensors to an Excel spreadsheet. This tutorial shows a wireless weather station with data logging that you can implement in your home.” Project info at Random Nerd Tutorials site.

Control your Arduino over the Internet using Blynk

John Boxall from Tronixstuff has written an article on using Blynk with Arduino: There are many ways of remotely-controlling your Arduino or compatible hardware over the Internet. Some are more complex than others, which can be a good thing or a bad thing depending on your level of expertise. Lately we’ve become more interested in this topic […]

Tutorial on the theory, design and characterization of a CMOS transimpedance amplifier

Tutorial on the theory, design and characterization of a CMOS transimpedance amplifier from The Signal Path: In this episode, Shahriar and Shayan discuss the design and characterization of a deceptively simple CMOS inverter-based transimpedance amplifier. The the large and small signal behavior of the CMOS inverter is discussed and measured using the Keithley 2450 and […]

Making PCB vias with conductive ink

Here’s an alternative method for making PCB vias using conductive ink from Diyouware: We developed an alternative method for making PCB vias through-hole using our robot. As you probably know the traditional DIY method consists in threading a wire through the holes and then soldering it and then cutting it off. For example, if we have 100 vias in […]