Hw-044 Datasheet [repack]

Unlike older MAX232-based modules that require a strict 5V power rail, the HW-044 utilizes the advanced . This allows it to interface seamlessly with both 3.3V and 5V systems without requiring an external logic-level shifter. Connecting HCM375B-232-68N with arduino

The HW-044 module is used primarily for these purposes:

Many modern variants of the HW-044 also include a dedicated battery protection circuit (DW01A and FS8205A ICs) to protect the connected battery from over-charging, over-discharging, and short circuits. Technical Specifications

Choose HW-044 when you have a digital audio source (SD card, internet stream, codec) and want the cleanest audio without analog interference. hw-044 datasheet

For 44.1 kHz / 16-bit stereo, BCLK = 44,100 × 16 × 2 = 1.4112 MHz. The HW-044 handles this easily.

Up to 1.0A (adjustable via an onboard resistor; defaults to 1A) Over-Discharge Protection Voltage: 2.5V Over-Current Protection Threshold: 3.0A

*The MAX98357 supports 3dB and 6dB, but the HW-044 only exposes these three options via the GAIN pin. Unlike older MAX232-based modules that require a strict

Micro-USB, Type-C USB, or Mini-USB female port (varies by board manufacturer), alongside dedicated solder pads. Operating Temperature: -10°C to +85°C Dimensions: Approximately 25mm x 19mm x 10mm Pinout and Connection Diagram

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 Pin | Arduino Uno Pin | | :--- | :--- | | | GND | | + (VCC) | 5V | | SW | Pin 4 | | DT | Pin 3 | | CLK | Pin 2 | Technical Specifications Choose HW-044 when you have a

While a minor detail, the physical footprint matters for enclosure design. The HW-044 PCB typically measures:

int xValue = 0; int yValue = 0; int swState = 0;