Best HALJIA Conditional Access Modules of 2025

The HALJIA HC-06 Module is a compact Bluetooth device that enhances your project with wireless data transmission. Its core features include four lead-out interfaces, allowing easy connections to your Arduino. An LED indicator shows the Bluetooth connection status, providing you with instant feedback on connectivity. With a default baud rate of 9600, it ensures reliable data transfer. Operating between 3.3V and 6V, it is power-efficient, making it an excellent choice for your electronic projects.

The HALJIA Buzzer Module is a practical device that requires an input oscillation frequency at the I/O ports to sound the buzzer, making it ideal for alert systems. With its S8550 transistor drive, you can expect reliable performance. Operating between 3.3V and 5V, it is versatile for various projects. Additionally, the fixed bolt holes allow for easy installation, ensuring you can set it up without hassle.

The HALJIA RS422 Module offers reliable two-way communication over long distances of up to 1000 metres, making it ideal for various applications. With 15KV ESD protection and additional overcurrent protection, it ensures safety against electrical surges. The built-in 120-ohm terminating resistance effectively reduces echo interference, enhancing your communication quality. Additionally, the module features power and data indicators, providing a clear view of the data status, which is convenient for users to monitor their connections easily.

The HALJIA Rain Sensor offers a reliable solution for detecting rainfall. Its comparator output ensures a clean signal and strong driving ability, making it capable of handling over 15 mA. You can easily adjust its sensitivity using the built-in potentiometer, allowing you to customise its response to your needs. Operating within a voltage range of 3.3 V to 5 V, it is compatible with various systems. Additionally, the output can be in the form of digital switch or analogue voltage, providing versatility for different applications.

The HALJIA Current Detection Module is designed to enhance your electrical safety. With a working voltage of DC 12V, it provides reliable current detection that can prevent over-current situations. Weighing just 24g, this compact sensor module is easy to install and use in various applications. Additionally, it comes equipped with a relay protection feature, ensuring that your devices are safeguarded from potential damage caused by excessive current. This module is a practical choice for anyone looking to improve their electrical system's safety and efficiency.

The HALJIA MAX485 Module is a compact converter that operates at a voltage of 5V, making it ideal for low-power applications. With its on-board MAX485 chip, this device ensures efficient RS-485 communication, allowing you to connect devices over long distances. The slew-rate limited transceiver enhances signal integrity, ensuring reliable data transmission. Additionally, all pins of the chip are accessible, giving you control through a microcontroller for custom applications. This flexibility makes it a valuable tool in your electronics projects.

The HALJIA MP1584 Module is a compact DC-DC buck power module that outputs a fixed 5V. With an input voltage range of 7-28VDC, this module is versatile for various applications, including model airplanes, smart cars, and Arduino DIY projects. Weighing very little, its small size allows for easy integration into tight spaces, making it ideal for hobbyists and engineers alike. The module can deliver a maximum output current of 3A, ensuring that your devices receive sufficient power without interruption.

The HALJIA Jumper Wires are crafted from pure copper wire and PVC, ensuring excellent conductivity for your electronic projects. You can use them repeatedly, making them a cost-effective choice for circuit experiments. Unlike some competitors, these wires are designed to avoid unpleasant smells, ensuring a better experience. The quality has been enhanced, with improved cable heads that are less likely to fall off, allowing you to focus on your work without interruptions.

The HALJIA Buzzer Alarm Module is a versatile component for your projects. It operates on a voltage range of 3.3 to 5V, making it compatible with various systems. With a compact PCB size of 3.2 x 1.3cm, it fits easily into tight spaces. The module features an S8550 audion drive, ensuring reliable performance. When the I/O port input is low-level, the buzzer sounds, providing a clear alert. This function is particularly useful for alarm systems or notifications, enhancing your project's interactivity and responsiveness.

The HALJIA SD Card Module allows you to read and write data effortlessly on your Arduino or Raspberry Pi. With a 5V input voltage, it ensures compatibility with a range of devices. You can use it with Micro SD and Micro SDHC cards, making it suitable for high-speed data transfer. The standard SPI interface simplifies communication between your devices, while the four M2 screw holes make installation a breeze, saving you time and effort.