I had a couple of question about the LCD wiring.
I noticed that there are 3 areas to wire up the LCD, JPs 1-3.
JP1 has 6 pads, JP2 has 10 pads and JP3 has 3 pads or a plastic connector. Do I wire the LCD to JP3?
Also, what order are the wires in? (i.e. which is ground, etc?)
The really important one is JP3. I think the function of each pin is clearly labelled on the LCD board. You simply have to make sure that the:
- GND pin from the Shruti-1 is connected to the GND pin of the LCD.
- +5V pin of the Shruti-1 is connected to the VDD pin of the LCD.
- TX pin from the Shruti-1 is connected to the RX pin of the LCD.
Note that they are in the same order as on the Shruti-1 board. If you follow this:
Rx is orange,
GND is red,
5V is brown
They’re just cables, right? The colors aren’t detrimental just conceptually representable; for convenience?
My connector order is black, brown, red, orange, yellow, green, blue, purple.
OK, I was just confused by the the extra pads. I had gotten a good chunk of the boards soldered and I was probably a bit loopy from the solder fumes.
So, it’s RX to TX, +5V to VDD and GND to GND, correct?
It’s only cables! No matter whether they are brown or red, black or white, Chinese or Zulu, as soon as there’s a good connection, let’s rock!