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Jharwin's class

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Touch Sensor Schematic

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ddd

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Welcome to your new project. Imagine what you can build here. Schematic reference: https://tinyurl.com/3y35uxss

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R2 changes: -Moving to Letter Modules for ease of design -Adding ESP32 for WiFi On/Off and intensity control -Optional: Add unpopulated AA Battery Holder for battery option R1 changes: -Changed LED part to Red LEDs -adjusted resistor value of buck converter -Changed source for USB-C Connector -Removed exposed soldermask on buck converter with negative soldermask expansion -Order with black soldermask Modified by markwu2001: - Adjustable Brightness, - 85-90% Drive Efficiency - <5W Operation (Can use 5V 1A Plug) This project can be purchased from LCSC Original Description: Daddy's second circuit board. A sign to let my wife know when I'm on a call. Activates with a slide switch and is powered by USB-C. #template

I want make a board that trigger a green and red LED with three wire, 0V, 24V and output of proximity switch. but i want output wire remain 0V when not connected.

This project involves designing a portable device that can inject a 1kHz sine wave signal into a 100V audio line to detect short circuits. The device should be compact (around the size of a smartphone) and include LED indicators to show the status: a green LED for normal operation and a red LED for short-circuit detection. The device will be powered either by a switching power supply or rechargeable batteries.

This is a diode-based VCA audio compressor that works in mono. The compressor has LED-based gain reduction metering, input gain (preamp), output gain, and a fast-attack switch akin to the SSL channel-strip compressors. The module is to be powered by a regular outlet so it has an AC-DC converter.

Constellation PCB - Meant to blink LEDs representing the constellation Cassiopeia - On/off switch for controlling the LEDs and switches to control the colors of the LEDs

This is a reference design of buck based on LT1933 with an internal 0.75A power switch and 3.3V output #3V3 #dcdc #power #referenceDesign #powermanagement #analogdevices #template

MAX6675 Module and Stepper Motor Driver (e.g., A4988a with a esp32 it has to be contolled by cloud and manual switch