This circuit solved a problem encountered in developing a portable device with an ARM Cortex-M0 processor. The power supply consisted of two AA batteries (2 × 1.5 V), and I needed to signal the ...

The combination of an external circuit and a low-voltage microcontroller occasionally requires a significantly higher power-supply voltage. You can use either an external boost converter to increase ...

Presented here is one ‘universal’ power supply unit for today’s microcontroller projects. The circuit is a compact power supply capable of providing +5 and +3.3V regulated outputs as VCCs (VCC1 and ...

Is it possible for a tiny microcontroller to run on a massive 48-V battery? This DIY electronics project makes it happen with ...

Process migration and improved circuit design have resulted in major power savings over the years. However, this exposed leakage current as a major source of energy loss, particularly in systems that ...

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

This microcontroller-based control circuit adjusts the speed of a small permanent-magnet DC motor to one of four speeds as selected by a pair of photosensors.

Most of you know how an NFC tag works. The reader creates an RF field that has enough energy to power the electronics in the tag; when the tag wakes up, two-way communication ensues. We’re ...

Bluetooth Low Energy (BLE) devices have seen exponential growth over the past 5 years, and companies are constantly adding greater functionality to stay connected (such as adding machine learning to ...