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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EEWorld netizens share experiences in national competitions

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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

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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Concurrently manage 8 tubes for the whole bridge

Introduction: Please pay attention to safety when using

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ADS1293 verification module

Introduction: ADS1293 electrocardiogram (ECG) physiological signal measurement 3-channel 24-bit analog front-end verification board.
This project is a sample project for the Solicitation Order for Lichuang EDA open source hardware platform solution verification module.

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6028rgb (3528 reverse sticker) six-way common anode module

Introduction: I want to make a bunch of 6028rgb keyboards and make some modules.

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12344

Introduction: ULN2003

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LCR measuring instrument

Introduction: LCR measuring instrument

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Discrete power stage low cost high power class D amplifier

Introduction: Dual TL494 BD/1SPW modulation scheme, differential input and feedback, no power-on shock, matched with EG2132 (cheap) driver, the power stage is a full-bridge design, and the power utilization rate is higher

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(Verified) 4 series 2 parallel 4.2v21700 BM3451 battery protection board

Introduction: 4 series 2 parallel 4.2v21700 battery protection board with passive balancing based on BM3451TNDC

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16-bit 1MHz synchronous sampling ADC chip ADS8329

Introduction: This module is used for ADS8329 chip testing, verifying the single chip 1MHz sampling and 500khz synchronous sampling functions, and a Keil program based on STM32F429 is attached as a reference.

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Variable tap 4-tube ZVS Arknights

Introduction: It can be switched to a tapped or untapped ZVS circuit according to the jumper, and contains a small amount of Arknights elements.

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Thermostatic harmonica heating plate

Introduction: Heating plate suitable for Suzuki chromatic harmonica holes

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