DIY a Portable, Accurate, Low Cost, Open Source Air Particle Counter

by James 3 months ago

Engineer

Originally written by rawrdongThis is the first Instructable in series: How to Make, Calibrate, and Test a Portable, Accurate, Low Cost, Open Source Air Particle Counter. The second installment, Build Chamber for Sensors, can be found here. third Monodisperse Generator around $300, here.This project Rundong Tian, Sarah Sterman, Chris Myers, Eric ...

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The way Boost PFC Converter Circuit Improves Power Quality

by James 3 months ago

Engineer

Originally written by David WilliamsLinear power supplies, even ones with passive filtering have low power factor and high harmonic currents. Learn about the boost power factor correction (PFC) converter, a circuit that can improve the power quality of power supplies.

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How to draw a pattern on a PCB board and manufacture it on Eagle?

by James 4 months ago

Engineer

Some people may wonder how to manufacture beautiful pattern on the PCB Eagle, design it and import make designed as expected. But some they don't know or neglect many details when designing such Eagle.Click HERE choose badges you like.Now let's find out these Eagle! ...

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The truth about the grounding and EMC filter design

by James 5 months ago

Engineer

Originally written by cuptreeGrounding is an important means of suppressing electromagnetic interference , and improving the compatibility electronic equipment. Proper grounding can suppress effects suppression equipment to radiated otherwise,wrong would cause serious interference,or even making device in malfunction. ...

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PCB layout for Robotic Controlling Board

by James 5 months ago

Engineer

Originally written by Robert KeimIntroWe can’t control a robot with schematic, even if you print out hard copy. We need printed circuit board (PCB). Actually, we much more than PCB—we PCB components properly installed. And nowadays, this is not always straightforward task. ...

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PCB Hummingbird Necklace

by James 7 months ago

Engineer

Originally written by othermachineIf you like making jewelry and have some experience using the Othermill, this is a great project for you! This style of necklace offers wonderful way to get creative with double-sided machining on Othermill.The four LEDs back pendant provide beautiful glow around outline highlight pattern front illuminating etched ...

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