Hw-044 Datasheet [RELIABLE]
The is a widely recognized, low-cost power management module that has become a staple in the electronics hobbyist and prototyping community. Often sold as part of sensor kits for Arduino, Raspberry Pi, and ESP8266/ESP32 projects, the HW-044 is essentially a compact 3.3V voltage regulator and logic level converter board. Its primary function is to safely step down a higher input voltage (typically 5V to 12V) to a stable 3.3V output, while also providing bidirectional 5V to 3.3V logic level shifting on multiple channels.