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Archive for the ‘hacks’ Category

Hacking a UART where there never was before

Tuesday, April 26th, 2016

Thanks to Andrew for sharing – check out the full post on their blog, MOAM Industries. As part of a prototype developed 12 months ago I was tasked with reading measurements from a blood pressure cuff [sphygmomanometer] in real time. Not surprisingly there are no consumer level devices that have...

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Posted in hacks | 1 Comment »

BeagleBone Black GPIO Benchmark

Tuesday, April 26th, 2016

Joonas Pihlajamaa from Code and Life writes, " I've previously made a GPIO benchmark of Raspberry Pi 1 and 2, and have always wanted to see how BeagleBone Black would stack against the Pis. I recently got one so the obvious thing to do was to see how fast the...

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Posted in hacks, R-Pi | 4 Comments »

Bringing a vintage telegraph into the digital age

Thursday, April 7th, 2016

Kyle Gabriel writes: I recently inherited a key on board (KOB) telegraph that my late grandfather used to practice Morse code with when he was a kid (Figure 1). A little bit of curiosity of how it would work and a little bit of displeasure from seeing it sit and...

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Behringer v-tone GMX212 Hybrid tube amplifier mod

Monday, April 4th, 2016

Davide Gironi wrote a post on his blog showing how he modified the Behringer v-tone GMX212 Hybrid tube amplifier: For this project I've used 12AX7 vacuum tube. This tube is one of the most used for the guitar preamplification. So there are many resources available on web. The first problem i...

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Hacking DTM0660L based multimeters

Saturday, March 26th, 2016

Kerry Wong writes: In my previous post, I did a review of the 6000 counts ennoLogic eM860T true RMS multimeter. This meter is based on a signal chip design using the versatile DTM0660L DMM chip. Besides the ennoLogic eM860T, several other multimeters such as UNI-T 139C, Velleman DV4100, Tekpower TP40...

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Ultimate geeky desk sockets

Wednesday, March 16th, 2016

Here's a geeky desk sockets project from Luke. He writes: I wanted a few more functions than just a desk USB Hub. Looking on the net i came across this youtube video . This was the type of thing i was looking for but it had far too many functions...

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Posted in hacks | 2 Comments »

STM32 FM song transmitter using tricky crystal feedback modulation

Monday, March 14th, 2016

Vinod writes, "This is an FM transmitter directly made from STM32F407 discovery. It transmits the wav file stored in internal flash via FM at 100MHz. The modulation over here is happening by a tricky feedback from the analog output of the same mcu to the crystal oscillator there by disturbing...

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Posted in hacks | 1 Comment »

mavroOBD, an open source Arduino compatible OBD/Can-Bus module

Thursday, February 11th, 2016

Mavromatics' open source project designed to “hack” your vehicle, that is available on github: The goal of this project it to create an Arduino based OBD port module that can be used to enhance a vehicles capabilites. For example, if you want door locks to close when moving faster than...

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Posted in Arduino, DIY, hacks | 1 Comment »

MIDI to USB adapter with Teensy LC

Monday, January 18th, 2016

Joonas has written up documentation on his MIDI to USB adapter with Teensy LC: Thankfully, I had a MIDI connector and a high-speed optocoupler at hand, and with these I could implement a MIDI in rather easily. After some investigation with Arduino Uno, it seemed quite simple to receive the serial...

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Using a $2 DS3231 RTC & AT24C32 EEprom from eBay

Friday, January 15th, 2016

From the comments on our 'Using DS1307 and DS3231 real-time clock modules with Arduino' post, Edward Mallon writes: I’ve been putting the $1 DS3231 boards through their paces for quite a while now…and they have been performing well. More details at Edward Mallon's blog. Via the comments.

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Posted in hacks | 8 Comments »

Atmega16u2 virtual serial example using LUFA Library

Wednesday, January 6th, 2016

Shane of Wattnotions has published a new build, an Atmega16u2 virtual serial LUFA board: What I wanted the LUFA library to do was pretty specific – the atmega16u2 should show up as a virtual serial port so that the computer can connect and read data from it like any other serial...

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Posted in hacks, library, PCBs | No Comments »

ESP8266 WiFI LED controller hack

Wednesday, December 30th, 2015

Andreas Hölldorfer of ChaozLabs wrote an article detailing how he hacked the cheap WiFi LED controller: This pictures show the PCB. As you can see there are pins labeled as RX,TX,GND,3.3V. I simply connected an USB-Serial converter to the pins. The two other pins are GND and GPIO0. If you set a...

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Posted in hacks, wireless | No Comments »

Adding a USB power port to a switch for IoT

Tuesday, December 29th, 2015

Jesus Echavarria wrote a how-to on adding a USB power port to a switch: I want to start some projects with Arduino and IoT, so the first things I need is an Arduino board, an Ethernet shield and a switch to connect it to the net. Also I need a power...

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Posted in hacks | 1 Comment »

Apple II ROM Dumper

Monday, December 21st, 2015

Quinn Dunki created an Apple II ROM tool project and posted a great write-up on digging into the ROM of her Apple IIc Plus: You may recall way back when I started my Apple II ROM Tool project, that I had intended to fix some bugs. That was the whole...

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Posted in hacks, repair | 2 Comments »

Sniffing BLE With The TI SensorTag CC2650

Thursday, December 3rd, 2015

Jan Clumps over at Element14 turns his CC2650 SimpleLink SensorTag into a BLE sniffer. He writes: In a previous post I connected the Texas Instruments SensorTag talk to a Cypress CySmart USB Dongle and made the dongle sniff Bluetooth traffic. This time I'll switch this around. We'll turn the SensorTag into...

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Continuous Autofocus laser cutter hack

Monday, November 2nd, 2015

Continuous Autofocus of a laser cutter using a wiimote controller from Martin Raynsford, he writes: We were inspired by the Glowforge laser cutters ability to continuously autofocus it's z axis. A camera mounted in the head of the laser detects a laser dot being shone onto the surface of the material...

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A hack for Hacks using AnalysIR & USB IR Toy

Tuesday, October 20th, 2015

The crew from AnalysIR  writes: One of our users from Italy, Guido, was tasked with upgrading an old in-house WRC system to allow the team of Sport’s Journalists to access the rack of satellite receivers relaying the various sports events around the building.  The challenge is that all of the...

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Posted in hacks, Infrared toy | No Comments »

XinSound Fuzz FD-20 mod – Big Muff V2 Ram’s head clone

Wednesday, October 14th, 2015

Davide Gironi writes,  "The XinSound Fuzz FD-20 is a Big Muff V2 Ram's Head guitar pedal clone.  It's schematic is next to the Electro Harmonix Big-Muff Pi 1975-15-10 original circuit. As usually, I would like to experiment on this pedal, doing some mods." Project info at Davide Gironi' blog. Check out...

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Software Serial Modbus Master over RS485 transceiver

Thursday, October 8th, 2015

Colin writes: We like cheap, well-made temperature controllers. Sure, we can make our own, but for a modest sum we can get a nice NEMA-rated package capable of reasonably complex logic with a communications interface. The Love 4C and 16C controllers can both be had for <$100 fit this description and...

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Just good enough 10 MHz reference

Wednesday, October 7th, 2015

Sverre Holm  writes: Some time ago I noticed that the Ublox Neo-7M GPS has a 10 MHz output which is locked to the GPS system's accuracy. Most people kept saying how useless it was due to excessive jitter unless it was cleaned up with a phase locked loop of some...

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Posted in hacks | 1 Comment »

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Recent Comments

  • Geert Jordaens: I'm not sure what kind of licensing I have to add since it is a fairly straight forward implementation of the adaptive Huffman Decoding. For...
  • erich: For anyone interested, I've added some c++ code for adaptive huffman decoding in the git repository.
  • Sjaak: I would add some more protection in the used trigger file (on the serverpilot site) then not using a standard name :) hopefully they use...
  • Pete Castagna: My friend Charlie who worked in synthesizers at a DOD type of place made a modification to this avalanche pulse generator that allowed him to...
  • Sam Catchpole: Yes please :D