| Parameter | Value | | :--- | :--- | | | HW-044 | | Primary IC | MAX3232 | | Operating Voltage | 3.3V - 5V DC (Compatible with 3.3V and 5V logic systems) | | Operating Current | ~6 mA (Very low power consumption) | | Main Function | Bi-directional RS232 ⇔ TTL signal level conversion | | Interface | RS232 side: DB9 female connector or terminal block TTL side: 4-pin header (VCC, GND, TXD, RXD) | | Dimensions (Approx.) | ~33mm x 32mm x 16mm (varies slightly by manufacturer) | | Baud Rate | Up to 250 kbps (depending on the MAX3232 chip) |
The IC calibrates itself for the first 4 seconds after power-up.
The is a highly efficient, dual-channel serial level shifter board powered by the Texas Instruments or Maxim Integrated MAX3232 IC . It translates high-voltage RS232 signals (up to ±15V) down to safe TTL/CMOS levels (3.3V or 5V) . This makes it a core bridge for linking modern microcontrollers like Arduino, ESP32, and Raspberry Pi with legacy computers, industrial instruments, and specialized serial equipment. 📋 Comprehensive Specifications
void loop() // If data is received from the HW-044 module... if (mySerial.available()) // ...read it... char c = mySerial.read(); // ...and print it to the Serial Monitor (your PC) Serial.print(c); hw-044 datasheet
Control a differential drive robot. Y-axis controls forward/back speed, X-axis controls turning, and the button toggles a headlight LED.
#include "LedControl.h"
Keep the connection wires between the battery pads ( | Parameter | Value | | :--- |
: Simple 4-pin header for the microcontroller side, including: VCC : Power input. GND : Ground. TX : Transmit data. RX : Receive data.
Up to 1.0A (adjustable via an onboard resistor; defaults to 1A) Over-Discharge Protection Voltage: 2.5V Over-Current Protection Threshold: 3.0A
This comprehensive datasheet guide provides the technical specifications, pinout configurations, schematic analysis, and application guidelines for the HW-044 module. Technical Specifications This makes it a core bridge for linking
The is a compact, high-speed RS232 to TTL converter module designed to bridge the communication gap between legacy serial equipment and modern microcontrollers like Arduino, ESP32, and Raspberry Pi.
Works with almost any microcontroller regardless of whether it's 3.3V or 5V.
The HW-044 is designed for simplicity and low power consumption, making it ideal for battery-operated hobbyist projects. Go to product viewer dialog for this item. Keyes IR Obstacle Avoidance Sensor Module for Arduino
: Check if your RS232 device requires a "Null Modem" (crossover) cable or a straight-through cable. Some devices expect specific pins on the DB9 connector to be jumped (like RTS/CTS) to "wake up" the serial communication. Are you connecting this to a specific sensor or just looking for a wiring diagram for your Arduino? Connecting HCM375B-232-68N with arduino - Page 2