ON Semiconductors design reference of their FAN6390 USB Type-C charger. Link here (PDF)
Pinko designed and built his own mini flight recorder: For a while a wanted to make my own flight recorder similar to the commercial altimeters but with my own requirements for functionality. In addition it needed to be visually appealing and functional in the same time … After some thinking about the design and functionality […]
An Arduino based remote buzzer project by Flute Systems: Base station uses an Arduino Pro Mini 5V. The reason for having 5V in this circuit is the TM1637 7-segment display. We’re using a 5V active buzzer module, two wires – signal and ground. On the left are the Adafruit PowerBoost 1000C for 5V and the […]
A detailed instructions of how to build a USB-C PD power hub @ bitsnblobs.com About a month ago, I showed you how to create a USB power hub using a DC power adaptor like this. One of the suggestions was to use USB type C as the power source and in this post, we will […]
Every Tuesday we give away two coupons for the free PCB drawer via Twitter. This post was announced on Twitter, and in 24 hours we’ll send coupon codes to two random retweeters. Don’t forget there’s free PCBs three times a every week: Hate Twitter and Facebook? Free PCB Sunday is the classic PCB giveaway. Catch […]
Liviu writes, “Recently I was made aware of the fidget cube. However the cube doesen’t seems to do anything so as a request from somebody, I decided to modify a bluetooth VR box controller and insert it in a cube.” More details on Do It Yourself blog.
App note from ON Semiconductor on their Smart Fuel gauge LC709204F. Link here (PDF) LC709204F is a Fuel Gauge for 1−Cell Lithium−ion/ Polymer batteries. It is a part of our Smart LiB Gauge family of Fuel Gauges which measure the battery RSOC (Relative State Of Charge) using its unique algorithm called HG−CVR2. The HG−CVR2 algorithm […]
KA7OEI writes: In a previous post I described a simple circuit that provided a low-voltage cut-out that could be used in a battery-operated system – see the article “A latching low-voltage disconnect for 12 volt lead-acid and lithium batteries”. That circuit – intended mostly for lithium-based batteries – required manual intervention to “reset” the device, […]
Check out VU3JVX’s awesome uBITX scratch-built homebrew project. See the full post on SolderSmoke blog.
Andrew Garratt blogged about his MiniTiouner DATV receiver built: The MiniTiouner uses free to download DVB-S receive and analysis software called “Minitioune” written by F6DZP. The Software is hosted on the VivaDATV forum. So I registered and downloaded the software. More details on Radio Antics blog.
Adil Malik made a DIY injection transformer for PSU loop analysis: Recently, I have been designing some SMPS and required some hardware to measure the actual loop response of the complete converters. People familiar with this area will probably know this can be done breaking the feedback loop of the converter and injecting a small […]
VE3POA writes: DuWayne KV4QB, has done a Step Attenuator project and was kind enough to give me a board he designed for it at FDIM this year. So, I will not reinvent the wheel here and follow his design. Thank you DuWayne. Here’s a link to his blog where you can read not only about […]
Dr. Scott M. Baker has designed and built a PoE-powered lab power supply using a DPS5005 and custom PoE board: The DPS5005 is a DC-DC converter. It can accept an input voltage from 0 to about 55 volts or so, and will regulate an output voltage up to about 1 volt below the input. This […]
Davide Gironi has posted an update on his ATmega brushless sensorless motor driver project we covered previously: Brushless electric motor (BLDC motors) are synchronous motors that are powered by a DC electric source via an integrated inverter/switching power supply, which produces an AC electric signal to drive the motor. See the full post on his […]
NXP’s app note about the internals and how to’s footprint design and solder their leadless dual and quad flat packages. Link here (PDF) The small outline no-lead (SON)/quad flat no-lead (QFN) is a small size, lead-less plastic package with a low profile, moderate thermal dissipation, and good electrical performance. It is a surface mount package […]
Kionix’ introduces their Advance data path capability on their tri-axial accelerometers. Link here (PDF) The ADP is a combination of user tailorable frequency filters and a root mean square (RMS) calculator that provides the amplitude of acceleration within a desired bandwidth.
Every Friday we give away some extra PCBs via Facebook. This post was announced on Facebook, and on Monday we’ll send coupon codes to two random commenters. The coupon code usually go to Facebook ‘Other’ Messages Folder . More PCBs via Twitter on Tuesday and the blog every Sunday. Don’t forget there’s free PCBs three […]
In this video, Ben Krasnow shows to build and operate a simple mass spectrometer. More details in Ben Krasnow blog.
Jeff (K6JCA) has written a series of posts describing his homebrew project 500 watt HF power amplifier: I started this project back in 2016 — I had finished my Automatic Antenna Tuner (seen in the upper-left of the picture, above) and a PA project that would integrate into my FPGA-SDR and ATU system seemed like […]
Edward Mallon wrote an article describing a technique he used to make analog sensor readings with digital I/O pins: Will this method replace our pin-toggled oversampling? Perhaps not for something as simple as a thermistor since that method has already proven itself in the real world, and I don’t really have anything better to do […]