Accessories

The Complete Guide to the 1.28-Inch GC9A01 Round TFT Display Module

Circular displays are a unique twist for DIY electronics projects. While most LCDs are square or rectangular, the 1.28-inch round TFT display gives your project a modern, smartwatch-like look. It’s based on the GC9A01 controller, offers a 240×240 full-color IPS panel, and connects over SPI. In this guide we’ll explore what it is, how to wire it, how to drive […]

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The Complete Guide to the HC-SR501 PIR Motion Sensor

When it comes to detecting motion in DIY electronics, the HC-SR501 PIR sensor is one of the most popular and affordable choices. It’s used everywhere: alarm systems, automatic lights, smart home devices, and even art installations. In this guide we’ll cover how the sensor works, its specifications, wiring, configuration, and how to use it with

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The Complete Guide to the HLK-LD2410 24GHz Human Presence Radar Module

If you’re building smart home systems, motion detection, lighting automation, or occupancy sensors, a radar module like the HLK-LD2410 offers a lot more than a standard PIR sensor. It can detect both moving and micro-movements (breathing, sitting still, slight motion), output distance estimates, provide configurable sensitivity, etc. In this guide we’ll go through what it is, how

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THE ULTIMATE GUIDE TO THE DRV8825 PINOUT

The DRV8825 is one of the most popular stepper motor drivers in the world of embedded systems. Engineered for precision and control, it’s widely used in 3D printers, CNC machines, robotics, and countless other applications where accurate motion is essential. Whether you’re a beginner or an experienced maker, the DRV8825 provides everything you need to drive motors

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GUIDE TO THE HWFS-1 ANEMOMETER

Measuring wind speed is essential for weather stations, agricultural monitoring, HVAC automation, and safety systems. The HWFS-1 Anemometer is a cost-effective, analog-output wind speed sensor, ideal for both DIY and industrial environments. In this guide, you’ll learn everything about the voltage-type HWFS-1 — its principle, wiring, and how to use it effectively with microcontrollers. What

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