Hw-044 Datasheet -

: Receive Data (Connects to the TX pin of your Arduino/ESP32).

HW-044 Datasheet: MAX3232 RS232 to TTL Converter Module Comprehensive Guide

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.

Whether you are debugging old network routing hardware, hacking commercial DVD/Blu-ray players, upgrading firmware on satellite receivers, or building industrial automation projects, understanding the technical specifications of the HW-044 is vital. This datasheet provides an exhaustive breakdown of the HW-044 board layout, pinouts, technical characteristics, and practical application schematics. Technical Specifications & Core Features hw-044 datasheet

: Ground reference connection. Must be shared with the microcontroller. OUT1 & OUT2 : Output terminals for Motor A.

(half to equal the battery's capacity). You can desolder the default resistor and replace it using the guide below:

The HW-044 datasheet refers to a specific document that outlines the technical specifications, characteristics, and operational parameters of a particular electronic component or module. In this case, we will analyze the HW-044 datasheet to provide an in-depth understanding of its features, applications, and technical details. : Receive Data (Connects to the TX pin

A standard "straight-through" DB9 serial cable is typically used to connect the HW-044's DB9 female port to the male DB9 port on your RS232 device.

The underlying core of the HW-044 module is the Texas Instruments or Maxim Integrated . Unlike older MAX232 modules which require a strict 5V power supply, the MAX3232 features a dual internal charge pump that allows it to operate across a much broader voltage range while retaining full RS232 compliance.

The KY-023 and HW-044 are frequently interchangeable, but the HW-044 often has better quality control on the return springs. Always check the pin order before plugging in. While not suitable for very high-speed applications, it

| Parameter | Symbol | Min | Typical | Max | Unit | |-----------|--------|-----|---------|-----|------| | Supply Voltage | VCC | 3.0 | 5.0 | 5.5 | V | | Supply Current (5V) | ICC | - | 6 - 10 | 15 | mA | | Analog Output Voltage (Center) | Vout_center | 2.3 | 2.5 | 2.7 | V | | Analog Output Voltage (Full left/up) | Vout_min | 0 | 0.1 | 0.3 | V | | Analog Output Voltage (Full right/down) | Vout_max | 4.7 | 4.9 | 5.0 | V | | Push-Button Activation Force | F_sw | 400 | 600 | 800 | gf | | Push-Button Resistance (Pressed) | R_on | - | 0 | 50 | Ω | | Push-Button Resistance (Released) | R_off | 10M | - | - | Ω | | Mechanical Travel Angle (each axis) | θ | - | ±25 | - | Degrees | | Operating Temperature | Top | -25 | 25 | 85 | °C |

By following the guidelines and specifications outlined in the HW-044 datasheet, designers and engineers can ensure reliable and optimal performance of the component in their applications.

The module typically features a 4-pin header for the TTL/Microcontroller side:

Full conversion of both incoming and outgoing data. Versatile Power: Works flawlessly with 3.3V or 5V systems.