The audio component centers around the SS8550 PNP transistor (Q1) which serves as a driver for the passive buzzer (BZ1). This ...

PICO is much faster than the version with ATMega328. Its operation is identical. This achievement was the subject of an article in the Elektor magazine for the month of January 2022 (May-June 2023 for ...

In this free teacher resource for Primary Science, presenters Mwaksy and Greg construct a simple circuit that uses cells, wires, bulbs and wires and investigate how a switch opens and closes a ...

These days, if you want to flash some LEDs, you’d probably grab a microcontroller. Maybe you’d go a little more old-school, and grab a 555. However, [Jacob] is even more hardcore than ...

Posted in Arduino Hacks, Lifehacks, Wearable Hacks Tagged accelerometer, arduino, buzzer, eye protection, notification, vibration motor ...

Repository files navigation This project uses OpenCV in Java to detect human faces using a webcam. When a face is detected, it sends a signal via Serial Communication using jSerialComm to an Arduino, ...

Arduino GPS Tracker Circuit Diagram The Arduino GPS tracker circuit connects three main components: Arduino UNO R3, NEO-6M GPS module, and SIM800L GSM module. This design uses both hardware and ...

To test it, connect the battery to the circuit. Press and release the button, and you should hear a short tone burst output from the buzzer. Project 2: Continuity Tester Let's consider a continuity ...

A self-powered fire alarm system designed for factory safety using a thermistor, LM358 op-amp, and a buzzer. The system is powered by a solar panel and detects abnormal temperature rises (~55°C), ...