The HW-044 is an excellent, affordable, and easy-to-use logic level converter for hobbyist and prototyping projects. It shines in mixed-voltage systems where multiple bidirectional signals (like I²C, UART, or GPIO) need translation between 3.3V and 5V. While not suitable for very high-speed applications, it is more than adequate for most sensors, displays, and microcontroller communications.
| HW-044 | Arduino Uno | |--------|-------------| | VCC | 5V | | GND | GND | | DIN | D11 (MOSI) | | CS | D10 (SS) | | CLK | D13 (SCK) |
# Enable I2S dtoverlay=max98357a