This is a 40W mini UPS board designed to provide backup power at 12.6V. It keeps your devices running smoothly when the main electricity goes out. People commonly use this module to build DIY uninterruptible power supplies for Wi-Fi routers, security cameras, and small electronics to prevent sudden shutdowns during power outages.

This is a handy power bank charger module that delivers 5 volts at 2.4 amps for charging devices quickly. It manages battery power safely. People commonly use this circuit board in DIY projects to build custom portable power banks using lithium batteries, allowing you to charge phones and tablets on the go.

The KY-025 Reed Switch Module is a small sensor that detects magnetic fields using a pair of contacts inside a glass tube. When a magnet comes close, the switch closes to complete a circuit. It is commonly used in DIY electronics for building door security alarms, smart windows, and simple proximity detection systems.

The Linear Magnetic Hall sensor HW-509 is a small electronic component that measures the strength and polarity of a magnetic field. It produces a changing voltage output based on the magnetic force it detects. This sensor is commonly used in robotics, speedometers, and position-tracking devices to detect moving parts without physical contact.

The DC 0-30V Three-Wire Voltmeter is a compact digital display that shows exact electrical voltage measurements in real-time. It features a bright 0.36-inch screen that is easy to read. This handy tool is commonly used in DIY power supplies, battery chargers, and electronic projects to monitor voltage levels and prevent overcharging.

The L293D IC is a popular motor driver integrated circuit that lets you control the speed and direction of small DC motors and stepper motors. It can handle two motors at the same time. This chip is commonly used in beginner robotics projects, small automated vehicles, and microcontroller-based motion control systems.

The KBP410 Bridge Rectifier is a solid-state electronic component designed to convert alternating current into direct current safely and efficiently. It can handle up to 1000 volts and 4 amps of electrical current. This component is commonly used in power supply units, home appliances, and various circuit boards to provide steady DC power.

The KBP210 Bridge Rectifier is a reliable electronic component that converts alternating current into direct current. It is built to handle up to 1000 volts and 2 amps of power. This rectifier is commonly used in small power supply circuits, battery chargers, and electronic adapters to ensure devices receive steady, usable DC electricity.

The KBP310 Bridge Rectifier is an electronic component that converts alternating current into direct current for electronic devices. It supports up to 1000 volts and 3 amps of electrical current. This bridge rectifier is commonly used in power supplies, adapters, and household electronics to change wall outlet power into steady DC electricity.

The OPA2134PA IC is a high-performance audio operational amplifier known for delivering exceptionally clear sound with very low distortion. It processes audio signals accurately. This integrated circuit is commonly used by hobbyists and audiophiles in high-end headphone amplifiers, mixers, audio preamplifiers, and custom sound equipment to improve overall audio quality.

The DS18B20 Chip IC is a digital thermometer that provides precise temperature measurements and communicates using a simple one-wire interface. It is very accurate and easy to wire. This chip is commonly used in weather stations, greenhouse monitors, home automation systems, and aquarium temperature controllers to track heat levels reliably.

The L298N IC is a high-power motor driver integrated circuit designed to control the direction and speed of DC and stepper motors. It can manage higher currents than smaller chips. This component is commonly used in DIY robotics, RC cars, and automated machinery controlled by Arduino or other microcontrollers.

The LM567CN is a tone decoder integrated circuit. It acts like a custom audio filter that triggers a switch when it hears a specific sound frequency. People commonly use this handy microchip in remote control systems, security alarms, and tone-based communication projects to detect precise audio signals.

The CD4023BE is a digital logic chip containing three independent NAND gates. It takes multiple digital input signals and outputs a low signal only when all its inputs are high. This versatile component is widely used in basic digital circuits, DIY electronics, and logic design projects.

The CD4017BE is a decade counter integrated circuit. It takes clock pulses and lights up ten different outputs one by one in a repeating sequence. Makers and hobbyists commonly use this popular chip to build moving LED display lights, electronic games, and simple sequencing circuits.

The LM258P is a dual operational amplifier integrated circuit. It takes weak electrical signals and makes them much stronger. This reliable microchip is very popular in battery-powered devices, audio equipment, and sensor circuits where you need to boost and process analog signals accurately.

The KY 040 is a rotary encoder module that lets you turn a knob endlessly to input data. It features a built-in push button as well. It is commonly used for volume controls, menu navigation, setting values on digital screens, and DIY control panels.

This 3S 20A BMS board protects three series lithium-ion 18650 batteries from overcharging, over-discharging, and short circuits. It is commonly used in custom battery packs for power tools, electric bikes, and portable electronics to keep your batteries safe and extend their lifespan.

The NTC 10K 3435 Thermistor is a temperature sensor that changes its electrical resistance as it gets hotter or colder. It is commonly used in 3D printers, digital thermometers, and home appliances to monitor and regulate temperatures safely and accurately.

A 5MM LDR Photoresistor is a light-sensitive resistor whose resistance decreases as light increases. It is commonly used in electronic circuits to detect light levels. You will find it in automatic streetlights, night lights, solar trackers, and simple light-activated alarms.