Slide block for light-curing 3D printer

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A LabVIEW vending machine example, source code

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Digital Traffic Light Reference Design (with Multisim simulation circuit + principle document)

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Common component 3D model package library - Altium Designer

The resource is a 3D package library (STEP model) of common components available for Altium Designer, including 42 3D model libraries of common SMD components; 17 inductors, resistors and capacitors; 38 common connectors; 34 common light-emitting and display devices, a total of more than 130 exquisite 3D models of common components.

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Open Source SCPI Programmable Precision Resistor Meter

A programmable resistor is an electronic device whose resistance can be adjusted, usually through a digital signal. Programmable resistors come in the form of integrated circuits (often called digital potentiometers) as well as stand-alone devices/expansion cards. There are many different applications, each with its own set of requirements.

​Range 1Ω - 999.999KΩ.

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Homemade 10KV electronic load

Commercial electronic loads are more expensive, especially high-power loads such as computer power supplies that must handle transient current spikes well above their nominal ratings (1800W spike for a 600W GPU) and should be tested under worst-case conditions to Ensure stability.

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EEWorld netizens share experiences in national competitions

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Open source current probe based on Rogowski coil

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Output capacitor bank for signal power or dual supply headphone amplifier

This is a simple output capacitor bank for use in signal powered or dual supply headphone amplifiers. The output capacitor bank protects the headphones from DC current.​

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3dfx Voodoo Memory Expansion Board - Revision 1.0

PCB for clipping onto Guillemot MAXI Gamer 3D Voodoo graphics accelerator. The common memory size for these cards is 4 MB. With the help of PCB you can get Voodoo up to 8 MB.

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Escorna CPU 2.12: An open source hardware project geared towards robotics and programming for kids.

The basic Escornabot can be programmed to perform a series of actions using the robot's buttons. From this point of view, imagination is the only limit on possibility.

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FORmod - FORD S/S DRIVE MODE

A simple circuit to disable automatic start-stop and set the default drive mode on a Ford vehicle.

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Flexible PCB with three buttons

1 Layers PCB 11 x 48 mm Polyimide Flex, 0.1 mm, 1, Immersion gold (ENIG), Yellow Solder Mask, White silkscreen;

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10x10cm 1.27mm perforated board

2-layer PCB 100 x 100 mm FR-4, 0.8 mm, 1, tinned with leads, green solder mask, white silkscreen;

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10KHz-30MHz Mini WIHIP AKTIF Antenna

10KHz-30MHz Mini WIHIP AKTIF Antenna

10kHZ-255MHz signal generator OLED LCD

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Simple, high-quality condenser microphone DIY for under $100

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Homemade flexible capacitive sensor

By CNC engraving a PCB in the following manner, the curved pad can perform capacitive sensing in 3 different directions and ultimately detect the 3D position of the finger.

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PCF2131/PCA2131 Arduino ^® Shield expansion board

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SD/SIM Level Converter Evaluation Board

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