Electronics Components

The 0.56-inch Mini Digital Voltmeter is a compact DC voltage measurement module featuring a bright red LED display for clear, real-time voltage monitoring. With a measurement range of 4.5V to 30V DC, it is suitable for monitoring 6V, 12V, and 24V battery systems, DC power supplies, automotive electronics, and DIY...

The 1×4 Matrix Membrane Keypad is a compact, lightweight input device featuring four keys arranged in a single row. Its slim membrane design makes it suitable for electronic projects that require simple button-based control, menu selection, or user input.With a flexible ribbon cable connector and a thin profile, this keypad...

The 2-Slot 18650 Battery Holder is designed to hold two 18650 rechargeable lithium-ion batteries in a compact, durable plastic case. Its double-series connection provides a nominal output voltage of 7.4V, making it suitable for electronic projects that require a two-cell battery supply. It features two output leads for convenient connection...

The 4-Slot 18650 Battery Holder is designed to accommodate four standard 18650 rechargeable lithium-ion batteries in a compact plastic housing. Featuring an 8-pin connection interface, it is suitable for PCB mounting and electronic projects requiring a flexible battery connection arrangement. The holder supports battery configurations such as series or parallel...

The 4×4 Matrix Keypad is a compact input device designed for Arduino, ESP8266, ESP32, and other microcontroller-based electronic projects. It features 16 keys arranged in four rows and four columns, allowing users to enter numbers, characters, and commands for a wide range of applications. Using a row-and-column matrix interface, the...

The Wemos D1 R2 WiFi ESP8266 Development Board is an Arduino UNO R3-compatible development board featuring built-in 2.4 GHz Wi-Fi connectivity. Powered by the ESP8266 microcontroller, it is ideal for IoT applications, wireless sensor networks, home automation, and smart electronic projects. The board can be programmed using the Arduino IDE...

The Single 18650 Battery Holder Case is a compact battery compartment designed to securely hold one 18650 rechargeable lithium-ion battery. It provides convenient electrical connections for supplying DC power to electronic circuits, microcontroller projects, portable devices, and DIY electronics applications. Its compact design makes it easy to integrate into battery-powered...

The AC 220V 4000W SCR Voltage Regulator Dimmer Module is an adjustable AC power control device designed to regulate the output voltage supplied to compatible electrical loads. Using a silicon-controlled rectifier (SCR) or thyristor-based phase-control circuit, it allows users to adjust power delivery for applications such as incandescent lighting, resistive...

The PCF8591 AD/DA Converter Module is a compact, I²C-compatible data acquisition module designed for Arduino and other microcontroller projects. It features four analog input channels with 8-bit analog-to-digital conversion (ADC) and one analog output channel with 8-bit digital-to-analog conversion (DAC). This module allows microcontrollers to read analog signals from sensors...

The HC-SR04 Ultrasonic Sensor is a non-contact distance measurement module designed to detect nearby objects and measure the distance between the sensor and a target. It uses 40kHz ultrasonic sound waves to calculate distance from the returning echo, making it suitable for robotics, automation, and electronic sensing applications.  Operating at...

The MT3608 2A DC-DC Adjustable Step-Up Power Module is a compact boost converter designed to increase a low DC input voltage to a higher adjustable output voltage. Based on the MT3608 switching regulator IC, it is suitable for battery-powered electronics, Arduino projects, embedded systems, and DIY power supply applications. The...

The Keyestudio NRF24L01 2.4GHz Wireless Transceiver Module is a compact radio frequency communication module designed for wireless data transmission between microcontrollers and embedded devices. Operating in the 2.4GHz ISM frequency band, it enables two-way wireless communication for Arduino projects, robotics, remote control systems, and IoT applications. This 4-piece set is...