• [test childrenuids migration] Smart Haptic Buzzer Powered by STM32F03

    [test childrenuids migration] Smart Haptic Buzzer Powered by STM32F03

    Welcome to your new project. Imagine what you can build here.

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  • Proximity Buzzer notrace

    Proximity Buzzer notrace

    Welcome to your new project. Imagine what you can build here.

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  • BUZZER T

    BUZZER T

    Welcome to your new project. Imagine what you can build here.

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  • Smart Haptic Buzzer Powered by STM32F03

    Smart Haptic Buzzer Powered by STM32F03

    Welcome to your new project. Imagine what you can build here.

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  • Piezo Buzzer

    Piezo Buzzer

    Use this template if you're planning to get your 1 to 2-layer board manufactured in JLCPCB. It has the via min/max and trace width constraints already baked as global rules. #project-template #template #manufacturer-design-rules

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  • Range Buzzer

    Range Buzzer

    Welcome to your new project. Imagine what you can build here.

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  • Internship Design Project

    Internship Design Project

    This project was intended for the spirit of Halloween, This circuit functions are meant to detect the movement of an object holding candies. If the sensor detect that anyone moves the object, it will send the data from the sensor to the microcontroller. Lastly, once the microcontroller receives the data, it will send it to the buzzer to output a buzz that will stimulate a shock.

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  • Sad Red Ecto Goggles

    Sad Red Ecto Goggles

    makes a circuit which has transistors, diodes, relays, IC Timer, LED, which first turns on a green LED lit from 0 to 35 degrees Celsius then turns off and turns on a yellow LED from 35 degrees Celsius to 50 degrees Celsius then turns off the yellow and turns on the red at 50 degrees or more which in turn will turn on an oscillator circuit with IC555 and a Buzzer. In addition it should turn on an exhaust fan at 110 VAC. Translated with DeepL.com (free version)

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    5 Comments

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  • Mini Paper USV PCB Upgrade v1.0

    Mini Paper USV PCB Upgrade v1.0

    Mini Paper USV PCB Upgrade v1.0 schematic twin using an ELEGOO MEGA 2560, L293D H-bridge, HC-SR04 ultrasonic sensor, SG90 servo header, LED indicators, buzzer, and dual 9V parallel battery input.

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    1 Comment

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  • KEY PAD x 24 v3 8298

    KEY PAD x 24 v3 8298

    This module involves the design of a keypad lock system. It utilizes an ATMEGA328P microcontroller, buzzers, LEDs for indicator functions and a 4x3 matrix keypad. An in-circuit serial programming (ISP) header is also present for programming the microcontroller. #template #lock #keypad #reusable #module #simple-embedded #microchip #arduino #atmega328 #TPS613222A #ISP #buzzer #sublayout

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  • Omron G5V-1-T90 Relay (6-pin)

    Omron G5V-1-T90 Relay (6-pin)

    This document provides a detailed guide to building a relay circuit that uses a Raspberry Pi to control a buzzer. The relay acts as a switch, allowing the Raspberry Pi to turn the buzzer ON and OFF through GPIO pins.

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  • IR remote control Module

    IR remote control Module

    This is a schematic of an IR (infrared) remote control system. It's built around a Microchip ATTINY2313 microcontroller (U1) and boasts five push-button switches, an indicator RED LED and an electret buzzer for user interaction. An ISP header provides programming capabilities. The project is battery-powered and implements boost converter TPS613222AD (IC1) for stable power supply. #project #Template #projectTemplate #lock #keypad #attiny2313 #TPS613222A #ISP #buzzer #reusable #module #simple-embedded #microchip #arduino #sublayout

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    1 Comment

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  • Garage Security System Reference Design qz29

    Garage Security System Reference Design qz29

    This is a Garage Security System Reference Design, employing a Photon microcontroller to process sensor triggers, signaling through a buzzer and LEDs, powered by an HLK-PM03 power supply. #referenceDesign #edge-computing #edgeComputing #particle #template #iot #system #security

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    1 Comment

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  • IR remote control Reference Design 3c2m

    IR remote control Reference Design 3c2m

    This is a schematic of an IR (infrared) remote control system. It's built around a Microchip ATTINY2313 microcontroller (U1) and boasts five push-button switches, an indicator RED LED and an electret buzzer for user interaction. An ISP header provides programming capabilities. The project is battery-powered and implements boost converter TPS613222AD (IC1) for stable power supply. #project #Template #projectTemplate #lock #keypad #arduino #attiny2313 #TPS613222A #ISP #buzzer #referenceDesign #simple-embedded #microchip #template #reference-design

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    1 Comment

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  • STM-buzzer-3

    STM-buzzer-3

    Smart Haptic Buzzer Powered by STM32F03.

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    1 Comment

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  • WiFi remote control

    WiFi remote control

    This is a reference design WiFi remote control utilizing an ESP32-PICO. It includes a battery circuit, a buzzer, and multiple control buttons for inputs. #referenceDesign #simple-embedded #espressif #project #button #esp #template #reference-design

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    1 Comment

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  • ESP32 Industrial Vibration Sensor

    ESP32 Industrial Vibration Sensor

    USB-powered ESP32-WROOM-32 industrial vibration and temperature monitoring sensor node with ADXL345 SPI accelerometer, DS18B20 1-Wire temperature sensor, SSD1306 I2C OLED, LEDs, buzzer, relay header, and 3.3V AMS1117 power supply.

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  • Arduino Uno Smart Bin Status Shield

    Arduino Uno Smart Bin Status Shield

    Arduino Uno Smart Bin Status Shield: 2-layer JLCPCB-assembled Arduino shield with LEDs, buzzer MOSFET driver, reed-switch connector, and hand-soldered stacking headers.

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  • Couveuse Smart ESP32

    Couveuse Smart ESP32

    Couveuse intelligente connectée basée sur ESP32 avec capteur DHT22, LCD I2C 16x2, servo de retournement, buzzer, LED et deux modules relais pour chauffage/humidification.

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  • ESP32 Water Level Early Warning System

    ESP32 Water Level Early Warning System

    ESP32-based water level early warning system using a waterproof ultrasonic level sensor, USB-C power/programming, WiFi alert capability, local buzzer, and status LED indicators.

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  • ESP32-S3 Servo Load Controller

    ESP32-S3 Servo Load Controller

    Robust ESP32-S3 N16R8 44-pin baseboard for MG90S servos, SPI TFT, I2C OLED/INA226 modules, buzzer, and 12V MOSFET load/filter relay channels with EMI-conscious power distribution.

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  • door alarm system

    door alarm system

    9 V reed-switch alarm schematic with BC547 transistor latch/driver, LED indicator, buzzer, power input, and reed switch input.

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  • Circlegotchi E Ink ESP32

    Circlegotchi E Ink ESP32

    Circle-shaped ESP32 E Ink Tamagotchi-style handheld with USB-C power/programming, buttons, buzzer, and low-power display. Vibe-hardwared with no technical knowledge on May 12, 2026, and built in 30 minutes of real time.

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  • Pulse Induction Metal Detector 39d6

    Pulse Induction Metal Detector 39d6

    Pulse induction metal detector using an Arduino Nano, TC4420-driven IRF3205 coil switch, TL072 analog gain stages, LM393 detection comparator, 12V input power, and buzzer alert, optimized for low-noise sensing and separated analog/power grounds.

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  • Arduino Uno Keypad Door Lock Shield

    Arduino Uno Keypad Door Lock Shield

    Arduino Uno shield PCB that reproduces the working keypad door lock breadboard wiring exactly, using female Uno headers, LCD and keypad connectors, servo and buzzer connections, indicator LEDs, mounting holes, silkscreen labels, and manufacturing exports.

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