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Posts Tagged ‘how-to’

Tiva and Stellaris Launchpad RTC usage in Energia

Thursday, February 16th, 2017

Vadim has posted a tutorial on how to use internal RTC of Stellaris and Tiva Launchpad boards in Energia IDE: For those of you who still have one of those old Stellaris Launchpads, I'm going to show how to utilize one of its most useful features - real time clock - in...

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DIY Heng Lamp

Thursday, February 2nd, 2017

Martin Raynsford shared detailed instructions of how to make a DIY Heng Lamp,  project instructables here: The HENG Balance lamp just successfully funded on Kickstarter, the design is pretty cool and unique so we decided to make a copy of it. At it's heart it's just an LED lamp with a simple micro...

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How to make a simple 1 watt audio amplifier (LM386 based)

Friday, January 20th, 2017

A tutorial on making an LM386 audio amplifier circuit from Afrotechmods: A tutorial on how to use the popular LM386 class AB audio amplifier IC to build a simple mono 1 watt audio amplifier. It costs less than $3 in parts! There is also a brief discussion of how to...

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EMP Jammer build

Friday, January 20th, 2017

A how-to on making an EMP jammer from JunezRiyaz, project instructables here: An electromagnetic pulse (EMP), also sometimes called a transient electromagnetic disturbance, is a short burst of electromagnetic energy. Such a pulse may occur in the form of a radiated electric or magnetic field or conducted electrical current depending on the source....

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Posted in DIY | 1 Comment »

Guide for BMP180 barometric sensor with Arduino

Thursday, October 20th, 2016

A how-to on using the BMP180 barometric sensor with the Arduino from Random Nerd Tutorials: The BMP180 barometric sensor (model GY-68) is the one in the following figure (front and back view). It is a very small module with 1mm x 1.1mm (0.039in x 0.043in). It measures the absolute pressure of...

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Posted in Arduino, tutorials | 1 Comment »

Tutorial: RFID tags with the NXP NFC controller PN7120 and Eclipse

Monday, October 10th, 2016

Erich Styger writes: Playing with RFID and NFC is definitely fun🙂, and they are everywhere! For a research project I’m exploring different RFID tags and solutions. I several types around for a long time, but never found the time to actually work on it, so last nightI thought I give...

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Posted in ARM, tutorials | No Comments »

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

Tuesday, September 20th, 2016

[embed]http://www.youtube.com/watch?v=ICzDtjcUjbs[/embed] 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...

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Posted in Bus Pirate, tutorials | No Comments »

Capcom CPS2 security programming guide

Friday, September 16th, 2016

Eduardo Cruz from Arcade Hacker  writes: Dear all, after a few months of testing we are extremely happy to release the new clean desuicide / security programing method for Capcom's CPS2 hardware. This guide is the result of almost two years of work by an small group of arcade enthusiasts...

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Posted in tutorials | 1 Comment »

App note Quick-Start: Driving 14-segment displays with the MAX6954

Saturday, September 10th, 2016

Guidelines from Maxim on using the MAX6954 to drive 14-segment monocolor LEDs, app note here (PDF!): This article is how-to guide, intended as a quick learning aid for engineers considering using the MAX6954 to drive 14-segment monocolor LEDs. The MAX6954 is a versatile display driver, capable of controlling a mix of...

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DIY simple Hydrogen Generator

Tuesday, August 30th, 2016

A how-to on making a small hydrogen generator from Abedmoghari, project instructables here. Check out the video after the break. (more…)

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Posted in how-to | 3 Comments »

DIY USB power bank from laptop battery

Tuesday, August 23rd, 2016

A DIY USB power bank made from an old laptop battery from DoItYourselfGadgets: A situation many can relate to: an empty smartphone battery and no outlet around! That's exactly why I recycled an old laptop battery into an USB power bank. This article will show you the basic powerbank circuit consisting...

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Posted in DIY, hacks | No Comments »

Tote – Quadruped robot

Friday, July 22nd, 2016

Radomir Dopieralski has a nice build log on his quadruped robot - Tote: Tote is a small (fits inside your palm), four-legged, walking robot, with three degrees of freedom per leg, Arduino for its brains and controlled either with a TV remote, or by additional electronics added on top of it....

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Posted in DirtyPCBs.com, robotics | 1 Comment »

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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Posted in Arduino, tutorials | No Comments »

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 »

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 | 6 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

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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Posted in Eagle, tutorials | No Comments »

Handheld CNC router repairs old CNC machine

Friday, May 6th, 2016

[embed]http://www.youtube.com/watch?v=q8GFpSCK6Jk[/embed] In this video Ben Krasnow demonstrates how to use a handheld CNC router, the Shaper Origin, to make aluminum parts for his CNC mill. More details at Ben Krasnow’s blog.

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Posted in how-to | No Comments »

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Recent Comments

  • jeanmarc78: May be a free pcb for me :)
  • Jeff Tee: Still in the race?
  • Barry: Maybe not to late Need new project Free PCB Sunday
  • Sorin: I'll like one. Will save some time in producing myself.and your might have a better quality.. next project bus pirate!!!
  • Larry Couvillion: Please oh please oh pretty please!!!!