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@@ -102,10 +102,11 @@ NB: For well-known configuration, this is ignored
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### Display
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The NVS parameter "display_config" sets the parameters for an optional display. Syntax is
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```
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-I2C,width=<pixels>,height=<pixels>[address=<i2c_address>][,HFlip][,VFlip][driver=SSD1306|SSD1326[:1|4]|SSD1327|SH1106]
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-SPI,width=<pixels>,height=<pixels>,cs=<gpio>[,back=<gpio>][,speed=<speed>][,HFlip][,VFlip][driver=SSD1306|SSD1322|SSD1326[:1|4]|SSD1327|SH1106|SSD1675|ST7735|ST7789[,rotate]]
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+I2C,width=<pixels>,height=<pixels>[address=<i2c_address>][,reset=<gpio>][,HFlip][,VFlip][driver=SSD1306|SSD1326[:1|4]|SSD1327|SH1106]
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+SPI,width=<pixels>,height=<pixels>,cs=<gpio>[,back=<gpio>][,reset=<gpio>][,speed=<speed>][,HFlip][,VFlip][driver=SSD1306|SSD1322|SSD1326[:1|4]|SSD1327|SH1106|SSD1675|ST7735|ST7789[,rotate]]
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```
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- back: a LED backlight used by some older devices (ST7735). It is PWM controlled for brightness
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+- reset: some display have a reset pin that is should normally be pulled up if unused
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- VFlip and HFlip are optional can be used to change display orientation
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- rotate: for non-square *drivers*, move to portrait mode. Note that *width* and *height* must be inverted then
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- Default speed is 8000000 (8MHz) but SPI can work up to 26MHz or even 40MHz
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philippe44