diff --git a/alt-trees/serial/README.md b/alt-trees/serial/README.md
index d643a65..fe02d89 100644
--- a/alt-trees/serial/README.md
+++ b/alt-trees/serial/README.md
@@ -8,21 +8,21 @@ Gpio Header:
      i2c0.sck (2502000.i2c:204)  PG12   5 --o o-- 6   gnd                               
                       free (39)   PB7   7 --o o-- 8   PB8   uart0.tx (2500000.serial:40)   
                                   gnd   9 --o o-- 10  PB9   uart0.rx (2500000.serial:41)   
-                     free (117)  PD21  11 --o o-- 12  PB5   i2c1.sda (2502400.i2c:37)       
+                     free (117)  PD21  11 --o o-- 12  PB5   uart5.rx (2501400.serial:37)       
                      free (118)  PD22  13 --o o-- 14  gnd                               
-   uart2.tx (2500800.serial:32)   PB0  15 --o o-- 16  PB1   uart2.rx (2500800.serial:33)   
+                      free (32)   PB0  15 --o o-- 16  PB1   free (33)   
                                   3v3  17 --o o-- 18  PD14  uart3.cts (2500c00.serial:110)  
                      free (108)  PD12  19 --o o-- 20  gnd                               
- uart3.rts (2500c00.serial:109)  PD13  21 --o o-- 22  PC1   i2c2.sda (2502800.i2c:65)       
+ uart3.rts (2500c00.serial:109)  PD13  21 --o o-- 22  PC1   uart2.rx (2500800.serial:65)       
   uart3.rx (2500c00.serial:107)  PD11  23 --o o-- 24  PD10  uart3.tx (2500c00.serial:106)  
                                   gnd  25 --o o-- 26  PD15  free (111)                  
      i2c3.sda (2502c00.i2c:145)  PE17  27 --o o-- 28  PE16  i2c3.sck (2502c00.i2c:144)      
                       free (42)  PB10  29 --o o-- 30  gnd                               
-                      free (43)  PB11  31 --o o-- 32  PC0   i2c2.sck (2502800.i2c:64)       
+                      free (43)  PB11  31 --o o-- 32  PC0   uart2.tx (2500800.serial:64)      
                       free (44)  PB12  33 --o o-- 34  gnd                               
                       free (38)   PB6  35 --o o-- 36  PB2   uart4.tx (2501000.serial:34)   
                      free (113)  PD17  37 --o o-- 38  PB3   uart4.rx (2501000.serial:35)   
-                                  gnd  39 --o o-- 40  PB4   i2c1.sck (2502400.i2c:36)       
+                                  gnd  39 --o o-- 40  PB4   uart5.tx (2501400.serial:36)  
 
 Other gpio outputs of interest:
 -- PD18: Blue Status Led - gpio (2000000.pinctrl:114)
diff --git a/alt-trees/spi_i2c/README.md b/alt-trees/spi_i2c/README.md
index 5fcd7f9..cdae384 100644
--- a/alt-trees/spi_i2c/README.md
+++ b/alt-trees/spi_i2c/README.md
@@ -22,7 +22,7 @@ Gpio Header:
                     free (44)  PB12  33 --o o-- 34  gnd                              
  uart3.tx (2500c00.serial:38)   PB6  35 --o o-- 36  PB2   uart4.tx (2501000.serial:34)  
                    free (113)  PD17  37 --o o-- 38  PB3   uart4.rx (2501000.serial:35)  
-                                gnd  39 --o o-- 40  PB4   i2c1.sck (2502400.i2c:36      
+                                gnd  39 --o o-- 40  PB4   i2c1.sck (2502400.i2c:36)     
 
 Other gpio outputs of interest:
 -- PD18: Blue Status Led - gpio (2000000.pinctrl:114)