Update README.md

README.md

 # Vibora rapida muerta 
 ### Participants: 
-Carl Österberg (grade 4), Otto Kalliorinne, Alba Gallego (grade 4)
+Carl Österberg (grade 4), Otto Kalliorinne (4), Alba Gallego (grade 4)
 
 ### Introduction
 We plan to make a gaming mouse using the shell of an old RZ01-0201 gaming mouse.
@@ -22,4 +22,26 @@ We plan to make a gaming mouse using the shell of an old RZ01-0201 gaming mouse.
 * Shell of RZ01-0201
 
 ### Software specs
+* Code language = Rust
+* Reliable communication
+* 
+
 https://github.com/stm32-rs/stm32f4xx-hal
+
+### Pin connections
+All the connections can be seen in the kicad project files, for debugging, crystal, mouse buttons etc etc.
+
+The important connections are those that are going to be processed explicitly in the mouse driver code.
+##### Buttons
+* PC6(36) = mouse2
+* PC7(37) = mouse1
+* PB12(33)
+* PB13(34)
+* PB14(35)
+* PB15(36)
+##### Sensor
+* PA15(50) = NCS
+* PC10(51) = SLCK
+* PC11(52) = MISO
+* PC12(53) = MOSI
+