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climatex/gist:363f78db24959f8886149c3b740f35d1 Secret

Last active December 13, 2024 21:28
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MegaFDC w/ OLED display
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gistfile1.txt
Example with a 128x64 OLED display (SSD1309) thru SPI:
ui.cpp line 8:
replace "U8G2_ST7920_128X64_F_8080 display(U8G2_R0, DISP_D0, DISP_D1, DISP_D2, DISP_D3, DISP_D4, DISP_D5, DISP_D6, DISP_D7, DISP_E, U8X8_PIN_NONE, DISP_RS, DISP_RST);"
with "U8G2_SSD1309_128X64_NONAME2_F_4W_SW_SPI display(U8G2_R0, DISP_D7, DISP_D6, DISP_D3, DISP_D4, DISP_D5);"
then connect the display as follows, using the original pinheader for the ST7920:
pin 20 - GND
pin 19 - VCC
pin 14 - clock (SCL/D0)
pin 13 - data (SDA/D1/MISO)
pin 12 - reset (RES)
pin 11 - DC
pin 10 - CS
WARNING: only connect displays that are +5V compatible,
otherwise connect display VCC to +3.3V of Mega2560 and use level shifters on data lines
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