Explore the board
Welcome to Jay-D's anatomy guide!
Whether you already assembled your Jay-D or not, this is going to be a helpful guide where you’ll learn a bit more about the soldered components, small connections, LED lights, and drivers.
We'll start with bigger components and cover smaller components later in the guide.
Exploring the board
PCB stands for a printed circuit board. Basically, this fiberglass board has copper traces on it, some protective paint, and insulating material.
Thanks to all the copper leads on the board, all the connected or soldered components can communicate with each other.
Without it, speakers wouldn’t be able to play the music that you remix, the display wouldn’t react after any input from the rotary encoders or slider potentiometers, and LED lights wouldn’t turn on.
Just like with other CircuitMess devices like Nibble or Spencer, we want our components not only to work wonders but to look cool as well! Therefore, we designed some pretty fun patterns that you can see on the back of the board.
Take a closer look at the design on the back of the board
ESP-WROOM-32 is a powerful module mainly used for sound encoding and streaming music. It is reasonably priced considering all its abilities, including the ability to connect to Wi-Fi.
Due to its complexity and sensitivity, this module is already connected to Jay-D’s main board.
There is a headphone jack that’s soldered to the bottom of the board. Once you start mixing music on your Jay-D, you can plug in the headphones, and the sound will automatically transfer from the speakers to the headphones.
Slider potentiometers are soldered on the board
SD card holder
These LED lights are one of the most exciting components on Jay-D’s board.
There are 144 of them, and the small IS31FL3731 driver is the one controlling them.
This particular LED model is called 0603 (ORHW46G) because they are 0.06in long and 0.03in wide.
On this display, you’ll be able to see the songs that you remix, all the settings,
and new featured that you can program in CircuitBlocks a bit later.
The same display is used in CircuitMess Ringo kit!