9/5/2023 0 Comments Tft spi arduino![]() When I instead connect my 3.3V regulated supply, I have a white screen but none leds on the Arduino. Question : when I connect my ftdi, the Arduino pro mini has a red light and a green one. When I connect my ftdi I have this on the serial tracker :Īdafruit_ILI9341 tft = Adafruit_ILI9341(TFT_CS, TFT_DC,TFT_RST) I tried to do something better (easy lol) with the wiring. ![]() (I suspect the shopkeeper will become silent) All shopkeepers will lie through their teeth.ĭemand a FULL refund. Of course it will NOT work without resistors. No, it is not difficult to wire resistors or level shifters. Yes, of course a 3.3V display works perfectly at 3.3V. There are no level shifting components on that pcb. On Arduino Uno/Duemilanove/328-based, thats Digital 13. Start by connecting the power pins 3-5V Vin connects to the Arduino 5V pin GND connects to Arduino ground CLK connects to SPI clock. The photos in the link show a regular Red 3.3V board. Wiring Wiring up the display in SPI mode is much easier than 8-bit mode since there's way fewer wires. ![]() So, rather than have to use level shifters of resistor dividers, I made the whole project run at 3.3v. I chose this board because, although the seller of this display claims that it will work at both 5v and 3.3v, the majority of these display will not. I used a 3.3V 8MHz Arduino Pro Mini to drive the display - also sourced very cheaply on Ebay. ![]() The first phase of the is project is to try out the colour display. 'graphicstest' example, which is in the ILI9341 library examples folder, and downloaded "Adafruit-GFX-Library" and Adafruit_ILI9341.Īnd this data in the Serial Monitor Output:įor this project I used a 2.4" 240 x 320 TFT Touch screen with SD Card holder the I got on Ebay from this seller for £2.99. I used the same connections and same programm as described here, This is my connection to the board, without any resistors. ![]()
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |