Now playing
— stopped —
Melody Box model
Folder
Load audio files yourself over the rear Micro USB port. WAV and MP3 supported
SPK-5-24-232 · RS232 · 12–36 V supply · 90 dB output
Folder
0 is stop · 1–255
map to folders AW001–AW255 in the box
Load audio files yourself over the rear Micro USB port. WAV and MP3 supported
3D view of the sound box
Whenever a sound is played, sound waves leave the grille, sized by the volume setting · the rear shows this model's terminals, labelled like the real unit
Drag to orbit · scroll to zoom · double-click to reset the view
Drag to orbit · scroll to zoom · double-click to reset the view
Volume
20
🔴 RS232 is point-to-point only One port talks to exactly one box
For several locations — use one port per box · switch to the RS485 model · or add external speakers to one unit
For several locations — use one port per box · switch to the RS485 model · or add external speakers to one unit
0–28 (29 steps) — move the slider, then play again to apply
The box also has a volume knob on the back The two multiply With the knob turned down, commanding 28 is still quiet
The box also has a volume knob on the back The two multiply With the knob turned down, commanding 28 is still quiet
Quick play
Press to play that folder immediately at the set volume —
useful for finding which sound is in which folder
Communication log
This page uses Modbus RTU every frame ends with CRC16
One play takes two frames: send volume first, then the play command. They are separate registers and cannot be written in one frame
Here you can read what the box actually holds with function 03. Use the "Read current values" button
🔴 The address is fixed at 1 and users cannot change it The manual states users can not modify, and there is no register for the address. A different value must be requested when ordering
RS232 model uses a USB-to-RS232 adapter · wire the adapter's TX to the box's RX · RX to TX · GND to GND
One play takes two frames: send volume first, then the play command. They are separate registers and cannot be written in one frame
Here you can read what the box actually holds with function 03. Use the "Read current values" button
🔴 The address is fixed at 1 and users cannot change it The manual states users can not modify, and there is no register for the address. A different value must be requested when ordering
RS232 model uses a USB-to-RS232 adapter · wire the adapter's TX to the box's RX · RX to TX · GND to GND