# hardware_setup.py for CYD_ESP32-2432S024C --- ili9341_CST820_ESP32 # 2.4" Cheap Yellow Display # Released under the MIT License (MIT). See LICENSE. # Copyright (c) 2021-2024 Peter Hinch # 17-dec-2024 ZolAnd # Schematic # https://github.com/jtobinart/Micropython_CYDc_ESP32-2432S024C/blob/main/resources/5-Schematic/2432S024-2-V1.0.png # also in schematics # This 2.4" Cheap Yellow Display comes in resistive and capacitive versions. # Both use a vanilla ESP32 with an ili9341 240x320 display. # Resistive version uses XPT2046 on same SPI bus as display, cs/ on GPIO33 # This setup is for the capacitive version with CST820 controller on I2C. """ Pin Reference (display and touch) D 0 Digital Boot Button D 2 Digital Display - Display: TFT_RS / TFT_DC 12 Digital Display - Display: TFT_SDO / TFT_MISO [HSPI] D 13 Digital Display - Display: TFT_SDI / TFT_MOSI [HSPI] D 14 Digital Display - Display: TFT_SCK [HSPI] D 15 Digital Display - Display: TFT_CS [HSPI] T 21 Digital Touch, Connector P3 & CN1 - Touch CST820: CTP_INT / I2C SDA T 25 Digital Touch CST920 - Touch CST820: CTP_RST D 27 Digital Display - Display: TFT_BL (BackLight) T 32 Digital Touch CST820 - Touch CST820: CTP_SCL T 33 Digital Touch CST820 - Touch CST820: CTP_SDA Full pin reference. Source https://github.com/jtobinart/Micropython_CYDc_ESP32-2432S024C/blob/main/cydc.py IO Pins 0 Digital Boot Button 1 Digital Connector P1 & USB Chip - TX 2 Digital Display - TFT_RS / TFT_DC 3 Digital Connector P1 & USB Chip - RX 4 Digital RGB LED - Red 5 Digital SD Card - TF_CS [VSPI] 6 Digital Not Connected 7 Digital Not Connected 8 Digital Not Connected 9 Digital Not Connected 10 Digital Not Connected 11 Digital Not Connected 12 Digital Display - TFT_SDO / TFT_MISO [HSPI] 13 Digital Display - TFT_SDI / TFT_MOSI [HSPI] 14 Digital Display - TFT_SCK [HSPI] 15 Digital Display - TFT_CS [HSPI] 16 Digital RGB LED - Green 17 Digital RGB LED - Blue 18 Digital SD Card - SCK [VSPI] 19 Digital SD Card - MISO [VSPI] 21 Digital Touch, Connector P3 & CN1 - CTP_INT / I2C SDA 22 Digital Connector P3 & CN1 - I2C SCL 23 Digital SD Card - MOSI [VSPI] 25 Digital Touch CST920 - CTP_RST 26 Analog Speaker - !!!Speaker ONLY! Connected to Amp!!! 27 Digital Display - TFT_BL (BackLight) 32 Digital Touch CST820 - CTP_SCL 33 Digital Touch CST820 - CTP_SDA 34 Analog LDR Light Sensor - !!!Input ONLY!!! 35 Digital P3 Connector - !!!Input ONLY w/ NO pull-ups!!! 36 Digital Not Connected 39 Digital Not Connected """ from machine import Pin, SPI import gc from drivers.ili93xx.ili9341 import ILI9341 as SSD # Display setup prst = Pin(0, Pin.OUT, value=1) pdc = Pin(2, Pin.OUT, value=0) pcs = Pin(15, Pin.OUT, value=1) # Use hardSPI (bus 1) spi = SPI(1, sck=Pin(14), mosi=Pin(13), baudrate=40_000_000) # Precaution before instantiating framebuf gc.collect() ssd = SSD(spi, height=240, width=320, dc=pdc, cs=pcs, rst=prst, usd=True) # 240x320 default # Backlight tft_bl = Pin(27, Pin.OUT, value=1) # Turn on backlight