Hw-044 Datasheet ((exclusive)) ⚡ Tested & Working

When reading the hw-044 datasheet , you must respect the operating limits of the MAX98357 chip. Exceeding these values can destroy the module.

Start with GAIN floating (9 dB) to avoid clipping. Increase gain only if your audio source is too quiet. hw-044 datasheet

Micro-USB, Type-C USB, or Mini-USB female port (varies by board manufacturer), alongside dedicated solder pads. Operating Temperature: -10°C to +85°C Dimensions: Approximately 25mm x 19mm x 10mm Pinout and Connection Diagram When reading the hw-044 datasheet , you must

// Echo the same byte back to the RS232 device (via pin 1) Serial.write(incomingByte); Increase gain only if your audio source is too quiet

Works with almost any microcontroller regardless of whether it's 3.3V or 5V.

The is a compact MAX3232 RS232 to TTL level converter module commonly used in DIY electronics to bridge communication between standard computer serial ports and microcontrollers like Arduino or ESP8266. Key Technical Specifications

Use the HW-044 in reverse (TTL to RS232) to act as a TTL-to-PC adapter to debug or flash firmware on UART-based devices that do not have a USB-to-serial chip.