Connecting SPI Based LCD Panels
The SPI based display controllers share the SYSTEM SPI channel (SPI2) interface on the PicoMite with the touch controller (if present) and the SDcard. 
The pins allocated to the SYSTEM SPI will not be available to other MMBasic commands. 
The speed of drawing to SPI based displays will be laregely unaffected by the CPU speed.
Connecting I2C Based LCD Panels
The I2C based display controllers use the SYSTEM I2C pins as per the pinout for the specific device. 
Other I2C devices can share the bus subject to their addresses being unique. 
If an I2C display is configured it will not be necessary to "open" the I2C port for an additional device (I2C OPEN ), 
I2C CLOSE is blocked, and all I2C devices must be capable of 400KHz operation. The I2C bus speed is not affected by changes to the CPU clock speed


OPTION LCDPANEL GDEH029A1, orientation, DCpin, RESETpin, CSpin, BUSYpin [,refreshcount] Initialises an e-Ink display using the GDEH029A1controller. This supports 128 * 296 resolution.  See " OPTION LCDPANEL ILI9341" for details of main parameter usage. 'BUSYpin' is an input used by the driver to establish command completion on the slow e-Ink display. An additional parameter refreshcount may be specified to control when the driver does a full update to the display (black/white flash). Default is 1. i.e. the display does a full refresh each write. Setting a bigger value can make updates faster and less obvious but with the risk of permanently creating ghost images on the display.

OPTION LCDPANEL ILI9163, orientation, DCpin, RESETpin, CSpin Initialises a TFT display using the ILI9163 controller. This supports 128 * 128 resolution.  See " OPTION LCDPANEL ILI9341" for details of parameter usage.

OPTION LCDPANEL ILI9341, orientation, DCpin, RESETpin, CSpin Configures the Micromite and Micromite Plus to work with an attached TFT panel using the ILI9341 controller. This supports 320 * 240 resolution.  
'orientation' can be LANDSCAPE, PORTRAIT, RLANDSCAPE or RPORTRAIT. These can be abbreviated to L, P, RL or RP. The R prefix indicates the reverse or "upside down" orientation.
'C/D pin', 'reset pin' and  'CS pin' are the Micromite I/O pins to be used for these functions. Any free pin can be used.

OPTION LCDPANEL ILI9481, orientation, DCpin, RESETpin, CSpin Initialises a TFT display using the ILI9481 controller. This supports 480 * 320 resolution.  See " OPTION LCDPANEL ILI9341" for details of parameter usage.

OPTION LCDPANEL ILI9488, orientation, DCpin, RESETpin, CSpin Initialises a TFT display using the ILI9488 controller. This supports 480 * 320 resolution.  See " OPTION LCDPANEL ILI9341" for details of parameter usage.

OPTION LCDPANEL N5110, orientation, DCpin, RESETpin, CSpin [,contrast] Initialises a LCD display using the Nokia 5110 controller. This supports 84 * 48 resolution.  See " OPTION LCDPANEL ILI9341" for details of main parameter usage. An additional parameter LCDVOP may be specified to control the contrast of the display. Try contrast values between &HA8 and &HD0 to suit your display, default if omitted is &HB1

OPTION LCDPANEL SSD1306I2C, orientation [,offset] Initialises a OLED display using the SSD1306 controller with an I2C interface. This supports 128 * 64 resolution. See " OPTION LCDPANEL ILI9341" for details of parameter orientation. An additional parameter offset may be specified to control the position of the display. 0.96" displays typically need a value of 0. 1.3" displays typically need a value of 2. Default if omitted is 0.
NB many cheap I2C versions of SSD1306 displays do not implement I2C properly due to a wiring error. This seems to be particularly the case with 1.3" variants

OPTION LCDPANEL SSD1306I2C32, orientation Initialises a OLED display using the SSD1306 controller with an I2C interface. This supports 128 * 32 resolution. See " OPTION LCDPANEL ILI9341" for details of parameter orientation.

OPTION LCDPANEL SSD1306SPI, orientation, DCpin, RESETpin, CSpin [,offset] Initialises a OLED display using the SSD1306 controller with an SPI interface. This supports 128 * 64 resolution.  See " OPTION LCDPANEL ILI9341" for details of main parameter usage. An additional parameter offset may be specified to control the position of the display. 0.96" displays typically need a value of 0. 1.3" displays typically need a value of 2. Default if omitted is 0.

OPTION LCDPANEL SSD1331, orientation, DCpin, RESETpin, CSpin Initialises a colour OLED display using the SSD1331 controller. This supports 96 * 64 resolution.  See " OPTION LCDPANEL ILI9341" for details of parameter usage.

OPTION LCDPANEL ST7735, orientation, DCpin, RESETpin, CSpin Initialises a TFT display using the ST7735 controller. This supports 160 * 128 resolution.  See " OPTION LCDPANEL ILI9341" for details of parameter usage.

OPTION LCDPANEL ST7735S, orientation, DCpin, RESETpin, CSpin Initialises a IPS display using the ST7735S controller. This supports 160 * 80 resolution.  See " OPTION LCDPANEL ILI9341" for details of parameter usage.

OPTION LCDPANEL ST7789, orientation, DCpin, RESETpin, CSpin Initialises a IPS display using the 7789 controller. This supports 240 * 240 resolution.  See " OPTION LCDPANEL ILI9341" for details of parameter usage.

OPTION LCDPANEL ST7920, orientation, DCpin, RESETpin Initialises a LCD display using the ST7920 controller. This supports 128 * 64 resolution.  Note this display does not support a chip select so cannot so the SPI bus cannot be shared if this display is used. See " OPTION LCDPANEL ILI9341" for details of other parameter usage.