It is powered by the , which handles the voltage level translation required to convert high-voltage RS232 signals (up to ±15V) into logic-level TTL signals (3.3V or 5V) safely. Technical Specifications
Operates reliably up to 250 kbit/s , which is more than sufficient for most hobbyist serial debugging or data logging.
Complete HW-044 Datasheet Guide: TP4056 Lithium Battery Charger Module hw-044 datasheet
The is a highly efficient, dual-channel RS232-to-TTL serial port converter board . It bridges the gap between old legacy computer serial ports (or industrial sensors) and modern microcontrollers like the Arduino, ESP32, or Raspberry Pi. At its core, the board features the Texas Instruments / Maxim Integrated MAX3232 transceiver IC , making it an essential peripheral for hardware hacking, industrial automation, and serial communication prototyping. 1. Technical Specifications Overview
Uses the robust MAX3232 chip, guaranteeing valid RS232 voltage levels. It is powered by the , which handles
You can desolder the default resistor and replace it to scale down the current according to the following standard parameters: : 1000mA (Default) : 580mA : 400mA : 250mA : 130mA The mathematical formula used to calculate this value is:
| HW-044 | Arduino Uno | |--------|-------------| | VCC | 5V | | GND | GND | | DIN | D11 (MOSI) | | CS | D10 (SS) | | CLK | D13 (SCK) | It bridges the gap between old legacy computer
Full conversion of both incoming and outgoing data. Versatile Power: Works flawlessly with 3.3V or 5V systems.
You can test the connection using the Arduino IDE's built-in 'SoftwareSerial' library, which allows you to use any digital pins for serial communication. This avoids conflicting with the hardware serial pins (0 and 1). Here's a simple sketch that will echo back any data it receives:
After uploading this sketch to your Arduino:
A: All three serve the same function. The key difference is the IC used. The HW-044 uses the MAX3232 , which is the most versatile. The main difference is the operating voltage: MAX232 requires 5V exclusively, while MAX3232 can be powered by 3.3V or 5V. Since the HW-044 uses the MAX3232, it is the more flexible and modern choice.