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Archive for the ‘tutorials’ Category

Pi Zero POV

Saturday, July 2nd, 2016

Francesco over at Garage Tech posted a detailed how-to on building a Raspberry Pi Zero POV setup to display text from a file using an LED: The most important part of getting the Pi Zero POV to run smoothly is given by how do you fix the payload of this...

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Posted in R-Pi, tutorials | No Comments »

Make the world’s cheapest MIDI tester

Monday, June 27th, 2016

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...

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Posted in DIY, tutorials | 1 Comment »

Arduvision II: OV7670 + FIFO module and arduino Mega

Tuesday, June 21st, 2016

David has posted a tutorial on how to use an Arduino Mega to interface the ov7670 sensor. More details at TheRandomLab. Check out the video after the break. (more…)

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

Friday, June 17th, 2016

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...

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Posted in Android, tutorials, wireless | No Comments »

ESP8266 RGB color picker

Monday, June 13th, 2016

Rui Santos has released a new project called 'ESP8266 RGB Color Picker'. He writes: In this project, you’re going to build a web server with an ESP8266 to remotely control an RGB LED. This project is called ESP8266 RGB Color Picker. Full details at Random Nerd Tutorials site. Check the video...

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

Friday, June 10th, 2016

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,...

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Posted in tutorials | 3 Comments »

Chrome Apps and serial port communication

Wednesday, June 8th, 2016

Luca Dentella writes, "When it comes to develop a GUI for your project, you may need to be sure it will be available for users under Windows, Linux and MacOS. Chrome Apps may be the solution: they are developed using the same technologies behind any websites (HTML5, CSS, javascript) but,...

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Getting started with OPENOCD using FT2232H adapter for SWD debugging

Friday, May 20th, 2016

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...

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Eagle CAD tips and tricks, part 2

Tuesday, May 17th, 2016

Here's the part 2 of Yahya Tawil's Eagle CAD tips and tricks we covered previously: In part 1, we talked about the importance of issuing commands with your keyboard and using your mouse effectively. In this part, we will continue talking about other useful tips and tricks for using Eagle CAD....

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Posted in tutorials | 2 Comments »

Eagle CAD tips and tricks

Thursday, May 12th, 2016

Yahya Tawil from All About Circuits shares some Eagle CAD tips and tricks that you may not be aware of: Most hobbyists and many professionals use Eagle CAD as a daily tool in designing schematics and laying out PCB. I’m going to share with you the most important tips and...

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Raspberry Pi web server using flask to control GPIOs

Wednesday, April 27th, 2016

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...

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Using BMP180 for temperature, pressure and altitude measurements

Monday, April 11th, 2016

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...

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How do I FPGA?

Friday, March 4th, 2016

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...

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Posted in FPGA, tutorials | No Comments »

ESP8266 – Wireless weather station with data logging to Excel

Thursday, January 28th, 2016

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...

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Posted in tutorials, wireless | 3 Comments »

Control your Arduino over the Internet using Blynk

Saturday, December 26th, 2015

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...

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Posted in Arduino, tutorials | No Comments »

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

Wednesday, December 23rd, 2015

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...

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Making PCB vias with conductive ink

Monday, November 23rd, 2015

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...

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ESP8266 remote controlled sockets

Wednesday, September 23rd, 2015

Rui Santos made a new project, an ESP8266 remote controlled sockets: In this project your’re going to build a web server with an ESP8266 that can control remotely any sockets (safely!). Project info at Rui's Random Nerd Tutorials site. Check out the video after the break. (more…)

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Posted in tutorials, wireless | No Comments »

How to make two ESP8266 talk

Wednesday, September 9th, 2015

Here's a detailed tutorial on how to make two ESP8266 talk with each other from Rui Santos: How it works? You’re going to set one ESP as an Access Point (Server) and another ESP as a Station (Client). Then they’ll establish a wireless communication and the Client sends a message to the...

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How to control your ESP8266 from anywhere in the world

Monday, August 31st, 2015

Rui Santos shared a tutorial on how to control your ESP8266 from anywhere in the world: The most common questions I get about the ESP8266 WiFi Modules are: “Is it possible to control my ESP8266 from anywhere in the world?” and “How can I control my ESP8266 from anywhere?”. I’m...

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Posted in tutorials, wireless | 1 Comment »

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