The small form factor allows it to be embedded directly into DIY project enclosures or mounted onto custom PCBs. Common Use Cases:
The HW-044 is a popular electronic component that has gained significant attention in the DIY electronics and maker communities. If you're looking to work with this component, it's essential to understand its specifications, features, and applications. In this blog post, we'll dive into the HW-044 datasheet, providing you with a comprehensive guide to help you get started.
HW-044 5V Relay Module Primary Function: Electromechanical Relay Switching Module for Microcontrollers (Arduino, ESP32, PIC, STM32, etc.) hw-044 datasheet
If you're looking for more information on the HW-044 or want to get started with your project, here are some additional resources:
Data transmitted from the module to the external device. The small form factor allows it to be
Connect to the power supply of your microcontroller (3.3V or 5V). GND: Connect to common ground. TX (Transmit): Connect to the microcontroller's RX pin. RX (Receive): Connect to the microcontroller's TX pin. 2. RS232 Side (DB9 Female Connector)
Unlike older converters, the HW-044 works seamlessly with 3.3V systems like the ESP32 and Raspberry Pi without needing additional level shifters. In this blog post, we'll dive into the
Updating firmware on set-top boxes, DVD players, or vehicle diagnostics (OBD) equipment.
💡 Some HW-044 converters are reported to have incorrect internal wiring, occasionally appearing as DTE (Data Terminal Equipment) when they should be DCE (Data Circuit-terminating Equipment). If your device fails to communicate, you may need to swap the TX/RX lines or check the board's specific trace layout.