Hello All,
I appreciate any and all feedback in helping to get this work…
Components:
-Sparkfun Arduino Pro Mini 328 (5V/16Mhz) http://www.sparkfun.com/products/9218
-Sparkfun FTDI Basic Breakout (5V) http://www.sparkfun.com/products/9716
-AdaFruit 1.8" 18-bit color TFT LCD display with microSD card breakout http://www.adafruit.com/products/358
Computer Hardware: Mac Pro
Operating System: OS X 10.6.x
IDE: Arduino Arduino 0022 http://arduino.googlecode.com/files/arduino-0022.dmg
Drivers: FTDI Virtual Com Port (VCP) Driver Version 2.2.16 http://www.ftdichip.com/Drivers/VCP/Mac … 2_2_16.dmg
Tutorial Used: http://www.ladyada.net/products/18tftbreakout/
Library: ST7735 acquired from GITHUB https://github.com/adafruit/ST7735-Library
Example Sketch 1: https://github.com/adafruit/ST7735-Libr … cstest.pde wired to match the tutorial’s “slower” method
Example Sketch 2: https://github.com/adafruit/ST7735-Libr … hspeed.pde wired to match the tutorial’s “faster” method
Test 1:
-I connected it as follows: Mac Pro → USB Cable → FTDI → Pro Mini and loaded Sketch 1 onto it. I received no error messages.
-I then disconnected the FTDI for safety, and wired the Pro Mini for the slower method. Note: I did not wire the power the Pro Mini directly as shown in the diagram as I was testing and assumed the power from USB would be enough for it to run.
-I connected the power to the 1.8" TFT display at the VCC and LITE and connected the ground. The display backlight lit properly.
-I reconnected the USB Cable to power the mini and waited to see if the test ran on the display. No success.
-I checked all wires to verify that they were properly connected. All wires were properly connected and had continuity.
Wiring for slower method:
DC Power Supply + 6V → Display (VCC)
DC Power Supply + 6V → Display (Lite)
DC Power Supply GND → Display (GND)
Pro Mini (4) → Display (SCK >)
Pro Mini (5) → Display (MOSI >)
Pro Mini (6) → Display (TFT_CS >)
Pro Mini (7) → Display (D/C >)
Pro Mini (8) → Display (Reset >)
Test 2:
-I connected it as follows: Mac Pro → USB Cable → FTDI → Pro Mini and loaded Sketch 1 onto it. I received no error messages.
-I then disconnected the FTDI for safety, and wired the Pro Mini for the faster method. Note: I did not wire the power the Pro Mini directly as shown in the diagram as I was testing and assumed the power from USB would be enough for it to run.
-I connected the power to the 1.8" TFT display at the VCC and LITE and connected the ground. The display backlight lit properly.
-I reconnected the USB Cable to power the mini and waited to see if the test ran on the display. No success.
-I checked all wires to verify that they were properly connected. All wires were properly connected and had continuity
Wiring for faster method:
DC Power Supply + 6V → Display (VCC)
DC Power Supply + 6V → Display (Lite)
DC Power Supply GND → Display (GND)
Pro Mini (8) → Display (RESET >)
Pro Mini (9) → Display (D/C >)
Pro Mini (10) → Display (TFT_CS >)
Pro Mini (11) → Display (MOSI >)
Pro Mini (13) → Display (SCK >)
If anyone can see anything obvious that I have missed or knows of any limitations that I overlooked with the Pro Mini, I would appreciate the assistance. I am still fairly new to this and have done research on the issue, but am coming up empty. I will continue to hack at it in the meantime. Thanks!
