Hw-044 Datasheet ((top)) [2026]

Before we conclude, it's crucial to address the "HW-044" ambiguity again. While this document focuses on the RS232-TTL converter, it's vital to be aware that the same "HW-044" label may appear on other products.

To use the HW-044, you need a microcontroller that can generate I²S. Below are minimal examples for two popular platforms.

: Rated for industrial temperature ranges from -40°C to +85°C . Interface and Connectivity

This is usually a baud rate mismatch. Ensure the baud rate set in your code matches the device you are communicating with. Also, check all wiring and the voltage level (3.3V vs. 5V). hw-044 datasheet

Outbound RS232 serial data sent out to the listening device.

| Parameter | Min | Typ | Max | Unit | |-----------|-----|-----|-----|------| | Sample Rate | 8 | 48 | 96 | kHz | | Bit Depth | 16 | 24 | 32 | bits | | BCLK Frequency | 0.5 | 3.072 | 12.288 | MHz | | LRC Frequency = Sample Rate | 8k | 48k | 96k | Hz |

: Detailed technical specifications such as voltage ratings, current ratings, power consumption, operating temperature range, and physical dimensions. Before we conclude, it's crucial to address the

The HW-044 features a straightforward layout with power inputs, logic control inputs, and motor outputs.

The HW-044 module operates as a constant-current/constant-voltage (CC/CV) linear charger. Below are the key electrical and physical parameters: 4.5V to 5.5V DC Full Charge Voltage: 4.2V DC (accuracy within ±1%)

Connects to the Positive (+) terminal of the single-cell Lithium battery. Below are minimal examples for two popular platforms

By default, the HW-044 comes configured for a maximum charge current of 1000mA (1A). This is determined by a programming resistor ( RPROGcap R sub cap P cap R cap O cap G end-sub R3cap R sub 3

: Output terminals for Motor B (sometimes labeled as additional OUT pins depending on the board variant). Logic Control Inputs IN1 : Controls Motor A direction and speed. IN2 : Controls Motor A direction and speed. IN3 : Controls Motor B direction and speed. IN4 : Controls Motor B direction and speed. Control Logic Truth Table

The mechanical coupling allows simultaneous two-axis control with one finger, and the return-to-center springs provide a natural neutral position—ideal for velocity control (e.g., tank steering) or position control (e.g., robotic arm).