Hw-044 Datasheet ((link)) Instant

is a compact RS232 to TTL converter module commonly used to bridge communication between microcontrollers (like Arduino, ESP32, or Raspberry Pi) and legacy industrial or computer equipment using the RS232 standard. Arduino Forum

Arduino Uno
HW-044 joystick
L298N motor driver
2x DC motors
1x LED with resistor

: To test if your HW-044 is working, short the TXD and RXD pins on the TTL side. Send a character via a terminal; if you see it echoed back, the module is functioning correctly. Troubleshooting Common Issues Garbage Characters : Usually caused by a mismatch in or a loose GND wire. No Response hw-044 datasheet

VCC → 3.3V (not 5V!)
GND → GND
X → GPIO36 (ADC1_CH0)
Y → GPIO39 (ADC1_CH3)
SW → any GPIO with pull-up

The HW-044 datasheet provides performance specifications that outline the component's operational parameters, including: is a compact RS232 to TTL converter module

10. HW-044 vs. Other Level Shifters

| Feature | HW-044 | TXS0108E | Simple voltage divider | |---------|--------|----------|------------------------| | Bidirectional | Yes | Yes | No (one-way only) | | Number of channels | 8 | 8 | N/A | | Automatic direction | Yes | Yes | No | | Max speed (safe) | ~200 kHz | ~1 MHz | Depends on resistors | | External pull-ups needed | No | No | Yes | | Cost | Low (~$1-2) | Medium (~$3-5) | Very low | Arduino Uno HW-044 joystick L298N motor driver 2x

Pinout and Connections: For modules or components with multiple connections, a datasheet would typically include a pinout diagram or table, detailing what each pin or connection is used for.