It is often difficult to design an effective thermal-management scheme that minimizes the risk of meltdown or fire. System orientation, placement, or both complicate matters by generating hot spots at varying locations on a PCB (printed-circuit ...
An ultrasonic range finder is a useful tool in a variety of real-life and robotic applications, such as in obstacle avoidance and distance measurement systems. The ultrasonic range finder measures the distance by emitting a 40 kHz pulse of ...
It’s a challenge to interface a resistive bridge sensor with an ADC receiving its power from a 5 V single-supply power source. Some applications require output-voltage swings from 0 V to a full-scale voltage, such as 4.096 V, with excellent ...
Disclaimer: Some parts of this circuit carry dangerous Mains voltage. If you are a beginner, seek guidance from experienced users. Dealing with the 110 V/220 V AC mains voltage and measuring the AC load parameters are regarded as a challenge for ...
I 2 C is a popular serial protocol for power controllers, ADCs and DACs, EEPROMs, and other devices. In certain data-acquisition and power-control situations, you must isolate the master from one or more slave devices for noise, grounding, or ...
This is a 12-key numeric keypad for use in a range of microcontroller projects (Figure 1). It has the advantage that you only need one analogue input to interface it. It's on a small 1.2 × 1.6 (30 × 40 mm) PCB, and I've also ...
This project presents the design and implementation of a dual-fan PWM cooling circuit, integrating a compact and efficient power supply with intelligent fan speed regulation. The circuit consists of two main parts: a 6 W isolated flyback converter ...
Are you tired of dealing with the damaging effects of inrush currents on your industrial devices? Look no further than an AC inrush current limiter (soft starter). Inrush current, also known as surge current, is the large amount of current that ...
Figure 1 shows a simple tester, based on an ATtiny202 , a piezo buzzer, and an LED, for checking circuit wiring or tracing out the tracks on a PCB: Figure 1. The Tiny Continuity Tester based on an ATtiny202. The piezo speaker is on the reverse of ...
This project is an ultrasonic range finder built using the RP2040 Zero board and a 3.2-inch TFT display. It utilizes the RCWL-1655 sensor, which operates similarly to the popular HC-SR04, to measure distances ranging from 20 cm to 300 cm. The ...