Wednesday, July 26th, 2017
Here is a nice PCB businesscard @ smdprutser.nl As a good electronic hobbiest tradition I started to design a businesscard from PCB material. Downside of all the businesscards (and PCBs in general) is the limited number of colors you can use: FR4, soldermask (with or without copper behind it), silkscreen...Tags: business card, pcb
Posted in PCBs, techniques | No Comments »
Thursday, June 8th, 2017
Erich Styger has written an article describing a technique he used to collect and store data from several BLE devices with Raspberry Pi and Python scripting: BLE (Bluetooth Low Energy) sensor devices like the Hexiwear are great, but they cannot store a large amount of data. For a research project...Tags: BLE, python, Raspberry Pi, Tips & Tricks
Posted in ARM, techniques | No Comments »
Monday, May 22nd, 2017
https://youtu.be/OX0-zDwOe14 A look at the cross section of a surface mount inductor from Electronupdate.Tags: review, surface mount inductor
Posted in components, techniques | No Comments »
Thursday, May 4th, 2017
Erich Styger @ mcuoneclipse.com writes: Looking for a small, inexpensive ($25-30) ARM development board (say 120-180 MHz ARM Cortex-M4 with FPU, 512kB-1MB of FLASH and 256 KByte of RAM? Then have a look at the Teensy 3.5 and Teensy 3.6 by PJRC/Paul Stoffregen The only problem? it is not possible...Tags: ARM, debugging, SWD, Teensy
Posted in ARM, techniques | No Comments »
Tuesday, February 28th, 2017
From the comments on our previous post Improving ADC resolution by oversampling and averaging application note, Edward Mallon writes: I managed to get oversampling working well on cheap Arduino promini clones. Turns out all you have to do is toggle a digital pin connected to ground with the right size...Tags: adc resolution, oversampling
Posted in Arduino, techniques | No Comments »
Wednesday, January 4th, 2017
Sjaak shared a tip for panelizing PCB boards in Eagle: Panelizing is done by machining a slot between two or more boards, but keep them attached by a small amount of PCB material (mousebites). I used to do it by hand: generated all the schematics into multiple sheets and then...Tags: Eagle, panelizing, tips and tricks
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Monday, November 14th, 2016
Facelesstech has written an article describing a technique he used for connecting two boards together. More details at Facelesstech's blog. Check out the video after the break. (more…)Tags: Arduino, Header, SMD
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Thursday, August 4th, 2016
Mare writes: Here is my solution to this problem. First clamp the Ic to vise or ask your wife to hold the tweezers with the chip Next, use your sharpest soldering tip and apply some solder to the pads. Please keep in mind the chip has 0,5mm raster between pads....Tags: tips and tricks
Posted in techniques | 3 Comments »
Saturday, July 23rd, 2016
Vasily Ivanenko writes: In numerous RF synthesizer chips lies an inverter with input and output pins for making a reference crystal oscillator clock. I built some discrete chip inverter xtal oscillators with 74HC series logic gates to better examine them. You'll quickly recognize the oft-used Pierce oscillator topology with 1...Tags: Inverter crystal oscillator, tips
Posted in techniques | 1 Comment »
Thursday, May 26th, 2016
Paulo has developed a free RC snubber calculator, an Excel-based calculator eases the design of RC snubbers in power switching applications: In power switching applications, a designer often has to contend with spurious oscillations. These are the result of parasitic capacitances and inductance on the board and behave like the...Tags: calculator, RC snubber
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Wednesday, March 16th, 2016
Jarrett has written an article describing a technique of using Altium for a DirtyPCBs order: This is a pretty rare combo: using a premium PCB package with the budget board house. Kinda funny. Generally these small run PCB houses provide DRU and CAM files for EAGLE design rule checking and...Tags: Altium, how-to, tips
Posted in DirtyPCBs.com, techniques | No Comments »
Friday, February 26th, 2016
Sjaak shared some tips when sending PCBs to the fab house: I usually collect a few PCB designs before sending them off to the PCB fabhouse. I prefer to use dirtypcbs.com as I know Ian from dangerousprototypes.com for a long time and think he provides good quality, and fast turn...Tags: pcb, Tips & Tricks
Posted in PCBs, techniques | 10 Comments »
Thursday, December 31st, 2015
Ken Shirriff has written an article describing a technique he used for making high resolution integrated circuit die photos: Have you ever wanted to take a bunch of photos of an integrated circuit die and combine them into a high-res image? The stitching software can be difficult, so I've written...Tags: integrated circuit die, tips
Posted in how-to, techniques | 2 Comments »
Thursday, January 1st, 2015
According to AMSAT-UK, "a new paper has been released by Dr David Morgan 2W0CXV on using the RTL2841 DVB TV Dongle as a SDR processor with SpectrumLab. The paper 'Techniques for using the RTL Dongle for Detecting Meteors' covers the setting up and use of the dongle to receive meteor...Tags: amateur radio, AMSAT-UK, meteor detection, RTL-SDR dongle, SDRSharp
Posted in SDR, site, techniques | No Comments »
Tuesday, August 26th, 2014
Ever wonder what data is being sent out by your Android device? Here's a post from LinuxJournal outlining how to monitor your device's WiFi traffic. The technique involves setting up a man-in-the-middle Wireless Access Point (WAP) on your Ubuntu Linux box, then connecting your Android device via WiFi to this...Tags: packet sniffer, traffic analysis, Wireshark
Posted in Android, Linux, security, software, techniques | No Comments »
Thursday, May 29th, 2014
Martin Kumm writes: This page provides documents about a cheap SMD solder station built as an Arduino shield (Arduino UNO). It supports active soldering tips from Weller (RT series) which contain the heating element as well as a sensor and provides a standard 3.5 mm jack. Together with the corresponding...Tags: Arduino, SMD, soldering
Posted in techniques, tools | No Comments »
Wednesday, April 30th, 2014
Courtney Lancaster gave this talk at Shmoocon 2014 outlining the types of information available from vehicle infotainment systems "This talk will take an in-depth look at infotainment technologies and how to forensically acquire the data associated with the functionalities that exist across various manufacturers. Furthermore, we will cover the challenges...Tags: automotive data, infotainment, Shmoocon, vehicle data forensics
Posted in security, techniques, Videos | 1 Comment »
Wednesday, April 23rd, 2014
[embed]http://www.youtube.com/watch?v=EjOxhnDGb9k[/embed] boldport has written an article describing a technique he’s used for removing the header cleanly: Know that sinking feeling after realising that you've soldered that 40-pin header on the wrong side of the board? I've come up with a technique that works for me for removing the header cleanly and...Tags: desoldering, pin header
Posted in how-to, techniques | 3 Comments »
Monday, December 9th, 2013
Petros Koutoupis at Linux Journal posted detailed information regarding hard drive caching techniques. Users of traditional hard drives who've been considering a switch to a solid state drive (SSD) should find this particularly interesting. Petros describes, Even today, the consumer SSD cannot compare to the capacities provided by the magnetic...Tags: caching, hard drive, SSD
Posted in Linux, techniques | 1 Comment »
Tuesday, October 29th, 2013
At last year's Blackhat Europe con, Philip A. Polstra, Sr. from the University of Dubuque gave a presentation detailing how to protect your USB security drive toolkit from auto erasure by the target machine. He describes the design of an open source USB flash drive write blocker based on the...Tags: Blackhat Europe 2012, forensic tools, USB write blocker
Posted in open source, security, techniques, USB | No Comments »
