(also known as the RS232 to TTL Converter Module ) is a serial communication adapter designed to bridge the gap between industrial signal levels and microcontroller-friendly AliExpress 1. Key Specifications The module is powered by the
This section is a classic bidirectional level converter circuit using four MOSFETs (often BSS138) and four pull-up resistors. hw-044 datasheet
The is a versatile, compact, and affordable module that solves two common problems in mixed-voltage electronics: generating a clean 3.3V rail and translating logic signals between 5V and 3.3V systems. While it lacks an official, unified datasheet, the information provided in this guide—derived from its constituent components and empirical testing—serves as a reliable technical reference. (also known as the RS232 to TTL Converter
The HW-044 module is highly regarded for its wide operating voltage range, making it compatible with both 3.3V and 5V microcontroller systems. MAX3232CSE Operating Voltage: 3.0V – 5.5V DC Interfaces: RS232 Side: DB9 Female Connector TTL Side: 4-pin header (VCC, GND, TXD, RXD) Data Rate: Up to 120kbps While it lacks an official, unified datasheet, the