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 ...

While child-sized humanoid robots like the Unitree R1 have come down in price, not everybody has a spare $6,000 to throw ...

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 ...

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 ...

Looking for practical Arduino projects? This guide shows how to control a relay from your smartphone using an Arduino Uno — either via Bluetooth or Wi-Fi.

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), ...

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