Hello, I recently bought https://www.sparkfun.com/products/10773?.
Followed this tutorial http://www.sparkfun.com/tutorials/300 but in the end when I uploaded the code nothing happened in the screen.
The back light is working but nothing appeared on screen.
I have connected:
Pin 1 VCC to 5V
Pin 2 GND to GND
Pin 3 SCE to 1K ohm to Pin 3 Arduino
Pin 4 RST to 10K ohm to Pin 4 Arduino
Pin 5 D/C to 10K ohm to pin 5 Arduino
Pin 6 DN(MOSI) to 10K ohm to pin 6 Arduino
Pin 7 SCLK to 10K ohm to pin pin 7 Arduino
Pin 8 LED to 3.3V
Another question, is it truly mandatory to use level shifter chip in order to use 3.3V component (I am using UNO)?
Is there anybody know which step I am missing?
Thank you in advance
I have purchased a few of these and non of them worked. The board to glass connector (Zebra connector) only works if the tension between the board and glass if even. Since the boards I got had warped boards the connections were faulty and the display would not work. After the second replacement, I went a different route. You can read the comments on the product page and search the Forum for more details on this possible reason your unit does not work.
fll-freak:
I have purchased a few of these and non of them worked. The board to glass connector (Zebra connector) only works if the tension between the board and glass if even. Since the boards I got had warped boards the connections were faulty and the display would not work. After the second replacement, I went a different route. You can read the comments on the product page and search the Forum for more details on this possible reason your unit does not work.
Okay did you say that this product defect/not working, or there is some mistake on my method?
I am warning you that it might not be you and MIGHT be a defect in the product. Look at the back of the PCB board. Is it bowed out such that if it was a bare PCB it would not lie flat on a table? If so, what happens when you flex the PCB to make it flat? Does anything happen on the LCD?
As for your other questions, since this device is a 3V3 part and the Arduino if 5V0 then you will indeed need level converters. 5V0 on an 3V3 input will likely fry the input.