diff --git a/documentation/exploring_feature_notes/cv_gate_and_serial_midi_input.md b/documentation/exploring_feature_notes/cv_gate_and_serial_midi_input.md
index 3991810..e5f8dfa 100644
--- a/documentation/exploring_feature_notes/cv_gate_and_serial_midi_input.md
+++ b/documentation/exploring_feature_notes/cv_gate_and_serial_midi_input.md
@@ -8,7 +8,26 @@ i believe it is possible to read midi in from an i/o pin (that can read serial)
 
 the [adafruit tft display] mentioned above also uses the gpios to connect to the pi - in particular it uses 5 spi pins and two standard pin outs. by cross referencing the [raspi gpio] docs it does not use either of the rx serial pin , which would be needed if i were to receive midi directly (rather than through usb), it also leaves plenty of pins for receiving cv from a [mcp3008] through software spi for example. it is likely that my gpio lcd screen communicates with the pi in a similar way and that i could figure out a way to connect these extensions if desired.
 
+what follows is the interface of cheep lcd from the shop page :
+
+PIN NO.| SYMBOL | DESCRIPTION
+--- | --- | ---
+1, 17| 3.3V | Power positive (3.3V power input)
+2, 4 | 5V | Power positive (5V power input)
+3, 5, 7, 8, 10, 12, 13, 15, 16 | NC | NC
+6, 9, 14, 20, 25 | GND | Ground
+11 | TP_IRQ | Touch Panel interrupt, low level while the Touch Panel detects touching
+18 | LCD_RS | Instruction/Data Register selection
+19 | LCD_SI / TP_SI | SPI data input of LCD/Touch Panel
+21 | TP_SO | SPI data output of Touch Panel
+22 | RST | Reset
+23 | LCD_SCK / TP_SCK | SPI clock of LCD/Touch Panel
+24 | LCD_CS | LCD chip selection, low active
+26 | TP_CS | Touch Panel chip selection, low active
+
+from this i should b able to work out which pins i can use for midi in and for analog-to-digital inputs (also piCapture needs some inputs too)
+
 [instructable]: http://www.instructables.com/id/PiMiDi-A-Raspberry-Pi-Midi-Box-or-How-I-Learned-to/
 [adafruit tft display]: https://www.adafruit.com/product/2441
 [raspi gpio]: https://www.raspberrypi.org/documentation/usage/gpio/
-[mcp3008]: https://learn.adafruit.com/raspberry-pi-analog-to-digital-converters/mcp3008
\ No newline at end of file
+[mcp3008]: https://learn.adafruit.com/raspberry-pi-analog-to-digital-converters/mcp3008