Hw-044 Datasheet Jun 2026

How does the HW-044 compare to similar products? Here is a quick comparison for reference.

| HW-044 Pin | Connect to | |------------|-------------| | LV (3.3V) | ESP8266 3.3V output | | GND (LV side) | ESP8266 GND | | LV1 | ESP8266 RX (3.3V logic) | | LV2 | ESP8266 TX (3.3V logic) | | HV (5V) | Arduino 5V output | | GND (HV side) | Arduino GND | | HV1 | Arduino TX (5V) | | HV2 | Arduino RX (5V) | hw-044 datasheet