Connects to the Negative (-) terminal of the single-cell Lithium battery.
: A brief introduction to the component or module, including its function, application areas, and possibly its features. hw-044 datasheet
Since you cannot download a specific datasheet, here is what you need to know for hardware integration and potential alternatives. Connects to the Negative (-) terminal of the
The HW-044 is a widely used, inexpensive RS232 to TTL converter module typically built around the MAX3232 chip, allowing 3.0V to 5.5V operation for interfacing microcontrollers with legacy serial equipment. Because it is a generic module, users should rely on the MAX3232 IC datasheet for precise electrical characteristics while ensuring proper RX/TX alignment and VCC logic level matching. Connecting HCM375B-232-68N with arduino - Page 3 The HW-044 is a widely used, inexpensive RS232
Here is a standard wiring diagram and code example to get your HW-044 running with an Arduino Uno.
void loop() // If data is received from the RS232 side... if (Serial.available()) // ...read it and send it back out (echo) char inChar = (char)Serial.read(); Serial.print(inChar);
The is a highly popular, dual-channel RS232 to TTL serial port converter board engineered around the Texas Instruments MAX3232 transceiver IC . This compact breakout board bridges the massive electrical gap between legacy industrial computer serial ports (