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Review Teardown of a cheap GPS Jammer

Review & Teardown of a cheap GPS Jammer

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

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Basic Switching Voltage Regulator Tutorial

Basic Switching Voltage Regulator Tutorial

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

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Simple circuit provides precision ADC interface

Simple circuit provides precision ADC interface

Real-world measurement requires the extraction of weak signals from noisy sources. High common-mode voltages are often present even in differential measurements. The usual approach to this problem is to use an op amp or an instrumentation amplifier and then perform some type of lowpass-filtering to reduce the background noise level. The problems with this traditional

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AAduino – Arduino Wireless in AA form factor

AAduino – Arduino Wireless in AA form factor

More news: read all about the new AAduino Zero. News: the crowd sourcing campaign for  the AAduino will start soon, sign up at CrowdSupply to be notified! The specs have been beefed with an STM32L0 cpu and the temperature sensor is now an industrial grade TMP102. Update: you can now order the AAduino PCB from DirtyPCBs.com and

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