: Power input (3.3V or 5V). Match this to your microcontroller's logic level. GND : Common Ground.
The HW-044 layout separates the sensitive, low-voltage microcontroller logic side from the high-voltage serial line side.
The core of the HW-044 is the Texas Instruments MAX3232 (or equivalent compatible IC), which allows for low-power, high-speed data transmission. Specification 3.0V to 5.5V DC Communication IC MAX3232 (Dual Driver/Receiver) Maximum Data Rate Connector Type DB9 Female (RS232 side) Interface Pins VCC, GND, TX, RX (TTL side) Operating Temp -40°C to +85°C Conversion Type Bi-directional (RS232 ↔ TTL) Pinout and Connection Guide
Reading output from Arduino/STM32/ESP32 via serial terminal. hw-044 datasheet
Based on the MAX3232 IC used in this module, the following electrical and environmental ratings apply: 3.0V3.0 cap V 5.5V5.5 cap V Maximum Data Rate: Typically Interface (Input): Standard DB9 Female RS232 connector. Interface (Output): 4-pin TTL header (VCC, GND, TX, RX). Operating Temperature: -40∘Cnegative 40 raised to the composed with power cap C +85∘Cpositive 85 raised to the composed with power cap C
To truly understand the HW-044, you must look inside. The module contains two independent 10kΩ linear potentiometers arranged orthogonally. One potentiometer controls the X-axis, the other the Y-axis. The knob mechanically rotates both wipers as you move the stick.
To find original source material, search for "PS2 joystick module schematic" or "thumbstick potentiometer datasheet 10k linear." : Power input (3
| Parameter | Value / Description | | :--- | :--- | | | Stereo audio power amplification | | Core Chip | Texas Instruments TPA3110D2 Class D Amplifier | | Output Power | 2 x 15 Watts | | Key Feature | High efficiency Class D operation | | Typical Applications | DIY speakers, portable radios, upgrading TV/PC audio | | Dimensions (approx.) | 39 mm x 30 mm |
The HW-044 board features two primary connection sides: the input power side and the battery/load side. Understanding these connections is critical to avoiding permanent damage to the module or the battery. Input Connections
Looking at the 3-pin header on the board: Based on the MAX3232 IC used in this
This guide clarifies the most common modules labeled "HW-044" that you are likely to encounter. We'll explore their technical details, applications, and how to find the necessary documentation.
mm) makes it easy to integrate into DIY projects or equipment upgrades.
The architecture of the HW-044 relies entirely on the charge-pump circuitry embedded around the MAX3232 IC.
The is a highly efficient, dual-channel serial level shifter board powered by the Texas Instruments or Maxim Integrated MAX3232 IC . It translates high-voltage RS232 signals (up to ±15V) down to safe TTL/CMOS levels (3.3V or 5V) . This makes it a core bridge for linking modern microcontrollers like Arduino, ESP32, and Raspberry Pi with legacy computers, industrial instruments, and specialized serial equipment. 📋 Comprehensive Specifications