Tiny Professional Microphone Preamplifier

Tiny Professional Microphone Preamplifier

This board has been designed around INA217 low distortion, low noise instrumentation amplifier. The INA217 is ideal for low-level audio signals such as balanced low-impedance microphones. Many industrial, instrumentation, and medical applications also benefit from its low noise and...

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GPS RECEIVER TO FM RADIO (88-107 MHz) AUDIO + RDS TRACKING V2
GPS

GPS RECEIVER TO FM RADIO (88-107 MHz) AUDIO + RDS TRACKING V2

pinko @ blog.exrockets.com has build a GPS receiver to FM radio based on PIC18LF2553. He writes: Today I made some modifications to this is a new project for a GPS to FM radio tracking device for rockets i.e. the V2. The initial design lacked the antenna impedance matching circuit...

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5.720
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TP4056 3V3 Load Share Upgrade
DIYPowerPower supply

TP4056 3V3 Load Share Upgrade

A lot of project are battery powered and some of them need dual battery links. Robert on hackaday.io had shared his new project that shed light on this issue. He built an load sharing addon board with the ability to charge the battery while the project is operating. Many Chinese...

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SMART.IO, An Affordable Remote Control for Embedded Designs
ArduinoSoftware

SMART.IO, An Affordable Remote Control for Embedded Designs

Creating a smartphone application for your embedded products may be a high-cost process that consumes time and efforts. ImageCraft, a producer of high quality low cost embedded system tools, had developed “Smatr.IO” as a very cheap alternative solution that allows you to add a...

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5.127
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Dintervalometer, A Custom Made Intervalometer For DSLR Cameras
DIYHardwareTools

Dintervalometer, A Custom Made Intervalometer For DSLR Cameras

If you want to take a timelapse with your camera, it may be helpful to use an intervalometer. It is an attachment or facility on a camera that operates the shutter regularly at set intervals over a period, in order to take timelapse series or take pictures after a set delay. Daniel...

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7.260
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2.5V-4.2V input to 3.3V output – 1A Buck Boost Converter using LTC3441
Power supply

2.5V-4.2V input to 3.3V output – 1A Buck Boost Converter using LTC3441

This circuit can produce an output of 3.3V and 1A current continuously for a voltage input varying from 2.5V to 4.2V. The LTC3441 is a high efficient buck boost converter which plays a vital role in portable instrumentation because of its fixed frequency operation. This circuit...

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Make the AVRISP mkII Clone from Arduino UNO
Arduino

Make the AVRISP mkII Clone from Arduino UNO

@kimio_kosaka shows us how to convert an Arduino UNO into an AVR programmer. It will be able to make the AVRISP mkII compatible machine if you a little modifying to Arduino Leonardo / Micro PCB. Below is an article on making Arduino UNO Rev.3  into AVRISP mkII clone. Make the...

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Panelizing made easy in Eagle
PCBSoftware

Panelizing made easy in Eagle

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 route...

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