The HW-044 module typically features 5 pins on one side (for the encoder signals and power) and 2 pins on the other side (for the push-button function).
The HW-044 is an excellent, affordable, and easy-to-use logic level converter for hobbyist and prototyping projects. It shines in mixed-voltage systems where multiple bidirectional signals (like I²C, UART, or GPIO) need translation between 3.3V and 5V. While not suitable for very high-speed applications, it is more than adequate for most sensors, displays, and microcontroller communications. hw-044 datasheet
Includes internal charge pumps to generate necessary RS232 voltage levels from a single low-voltage supply without external capacitors. Common Applications The HW-044 module typically features 5 pins on