Hello, here are the checked parameters working on my cute TTGO on-board color display Add in the demonstration ( https://github.com/loboris/MicroPython_ESP32_psRAM_LoBo/wiki/display ) #AE-20200709: ESP32- TTGO Color LCD 240x135 tft.init(tft.ST7789, rst_pin=23, backl_pin=4, miso=0, mosi=19, clk=18, cs=5, dc=16, width=235, height=340, backl_on=1) Thanks for your nice work ! Alain