Dual Motor L298 H-Bridge Control project can control two DC motors connected to it. The circuit is designed around popular dual H-Bridge L298 from ST. This board can be configured to drive a single motor with high current rating also. This can be achieved with the help of jumpers on the board. An onboard 5V […]
Dual DC Motor Driver For Robot with L298 Read More »
Generally, “jammers” — which are also commonly called signal blockers, GPS jammers, cell phone jammers, wifi jammers, etc. are radio frequency transmitters that are designed to block, jam, or otherwise interfere with radio communications. A jammer can block radio communications on devices that operates on a given radio frequencies within its range (i.e., within a
Review & Teardown of a cheap GPS Jammer Read More »
AMD has formerly announced the single-chip x86 CPU + GPU that was codenamed Carrizo. With up to four ‘Excavator’ CPUs and eight ‘GCN’ GPUs, it is aimed at notebook computers. AMD brands its chips that combine graphics and control processors ‘Accelerated Processing Units’ (APUs). Through close coupling through shared memory, the cores can share processing
AMD unveils Carrizo its 6th generation x86 CPU + GPU Read More »
First on the chopping block, the “EH1205”. Wait! What’s this? The original AC connector is mounted to the PCB. Yes, this has been repackaged! I think we can assume the approvals on the label are fiction. The current rating sure is. Note the ~5mm spark-gap in the upper left (~15kV?). Yes! Can you believe
Teardown: 12V AC adapters – The Horror Read More »
*** Do not attempt this project if you are not comfortable working with line voltages! *** This projects shows how to create an IV (Current and Voltage) Tracer that can be used to teach the electrical characteristics of a solar panel. This project was created as part of an Electrical and Computer Engineering capstone project
Quantum Interface (Qi) of Austin, Texas has come up with a predictive navigation interface which is responsive to motion, analysing the speed and direction of any input to determine user intent. It is offering beta versions of an app using technology. When a user moves toward a menu selection with a finger on a touchpad,
Qi introduces predictive sensing Read More »
Curve tracer is an electronic test instrument to analyze the characteristics of transistors and other discrete semiconductors. In this post we construct USB base curve tracer to analyze properties of NPN transistors. This curve tracer is build around Microchip’s PIC18F4550 MCU and it use simple Windows based GUI application to plot captured data of a
USB curve tracer for NPN transistors Read More »
A reflow oven comes in handy when you work regularly with SMT circuits. I’ve had the T-962A reflow oven for about a year now. While it has worked reasonably well, recently it has started showing some signs of aging. First of all, the total reflow time is quite long, about 15-16 minutes. This is really
Reflow toaster oven using an Arduino Read More »
A switching voltage regulator is one of my favorite circuits. In school, they were the first circuits I built where I understood how transistors worked. In fact, they were the first circuit I saw an inductor being useful! Switching regulators are incredibly efficient when designed properly. Of course, this detail about design is important. They
Switching Voltage Regulator Tutorial Read More »
GIGABYTE of Taiwan has produced a cache-coherent, dual socket ARM server board the MT70-HDO and its associated 2U rackmount the H270-T70. Based on the Cavium ThunderX ARMv8 processor, they accelerate GIGABYTE’s recent efforts to bring ARM-based server products to market thereby opening new doors for scale-out server workloads.Designed for the 48 cores ARMv8 2.5GHz ThunderX processor, the
GIGABYTE delivers Cavium ARM-based server boards Read More »
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