Hw-044 Datasheet ((link)) <500+ POPULAR>

The following appendix provides additional information and technical details on the HW-044 component:

Datasheets like that for the HW-044 are essential tools for: hw-044 datasheet

The HW-044 is a widely used, low-cost RS232 to TTL converter module built around the MAX3232 IC, which operates between 3.0V and 5.5V, making it compatible with 3.3V and 5V systems. As a generic module, its technical specifications generally align with the Texas Instruments MAX3232 datasheet , which supports data rates up to 250 kbit/s and includes ESD protection on the RS232 side. If you get no data, try swapping these two pins first

on your MCU, and vice versa. If you get no data, try swapping these two pins first. Hardware vs. Software Serial : If you are using an Arduino Uno, use the SoftwareSerial If you get no data

To interface the HW-044 with an Arduino or similar MCU, use the following pin mapping: HW-044 Pin MCU Connection Description 3.3V or 5V Match the logic voltage of your MCU Common ground (Must be shared between all devices) Data sent from the RS232 device to the MCU Data sent from the MCU to the RS232 device Helpful Pro-Tips for Implementation Common Grounding