Hw-044 Datasheet __full__ -

The module typically features two sides of pins for interfacing: TTL Side (Connect to Microcontroller) Power input (3.0V - 5.5V). GND: Ground. TXD: Transmit data (connects to MCU RX). RXD: Receive data (connects to MCU TX). RS-232 Side (Connect to PC/Serial Device) VCC/GND: Shared with the TTL side. TXD: RS-232 Transmit. RXD: RS-232 Receive.

The module typically features a 3-pin header for control and a 3-pin terminal block for the load. hw-044 datasheet

The HW-044 datasheet provides detailed information about the module's specifications, features, and electrical characteristics. Here's an overview of the key points: The module typically features two sides of pins

The HW-044 has several key features that make it a popular choice among makers and electronics enthusiasts: RXD: Receive data (connects to MCU TX)

Data transmitted from the module to the external device.

Programming microcontrollers that require a serial bootloader.

The HW-044 is a standard low-level trigger relay module designed to allow low-voltage microcontrollers to switch high-voltage or high-current AC/DC loads. It is widely used in home automation and robotics. The module features a single relay with optocoupler isolation, protecting the microcontroller from high-voltage spikes.