Uploading .MP3 files into the JQ6500 is not as easy as it sounds. Since the on-board flash storage on the market is typically 16MBit (aka 2Mb). So, if your samples are long, you will need to re-encode your files to a lower bitrate (but this compromises playback quality). You will also need a Program to upload it. You can also read more about the JQ6500-16P from GoGotronics.
JQ6500-16P Pinout
Let’s look at the image below. The JQ6500 module comes in two formats; the 16-pin (below) which I got, and the longer 28-pin (which has a microSD card slot). Most of the modules arrived with pre-soldered 2.54 through-hole PC Pin Headers but for my Project, I wished for the opposite. The layout of the Pins are quite straight-forward and is actually quite convenient.
– Power
The Positive is at Pin 12, which can take in anything from 3.5v to 5.0v
The Ground is at Pins 6 and 11
– Speakers
The SPKR+ is at Pin 16
The SPKE- is at Pin 15
From the datasheet, you can only use a single 1W, 8 Ohm Speaker while on the Internet, it was possible with a 3W speaker.
– K1 to K5 (Pin 1 to Pin 5) & GND
These are the hotkeys to play the first file to the fifth.
– PLAY MODE
This is a very interesting mode. By soldering the appropriate resistor values, you can dictate on how each sound can be played. Just like the ADKEY, 9 different resistor values t control the module. It is a very good design idea when you have limited I/O ports. It also allows me to (if I wanted to) connect a 4 options with a selector switch with all the resistors to suite the different types of audio playback. Might be great for Cosplay and adds an additional detail to the Blaster. The 0805 resistor values are:
[None/Float] – Immediate Retrigger
51k – Whole file, single play
33k – Whole file, multi play
24k – Play while held down
What is the Capacity?
So, what is the capacity of my JQ6500-16P? This version does not have a microSD card card slot so it has to use the on-board Flash memory. Normally, the capacity is 16Mbit (2MB) but the one I have in my hands have a much bigger capacity. By turning the module over, I can see the BoyaMicro Flash memory…
Programming the JQ6500
Apart from the micro-USB cable, you will need to make sure the MusicDownload.exe file is there. Once you plug in the JQ6500 module to your PC, it will show up as a CD drive in the Windows File Explorer. For the my JQ6500 which arrived today, the file is in there.
