Document UART as primary communication method

2026-06-03 01:35:00 -06:00
parent ca36431eed
commit ef3a639a19
5 changed files with 72 additions and 52 deletions
@@ -1,23 +1,30 @@
 # CAT5 Pinout

+## Primary Configuration
+
+UART over CAT5
+
 Pair 1
-Blue        +5V
-Blue/White  +5V
+Blue       +5V
+Blue/White +5V

 Pair 2
-Orange      Ground
+Orange       Ground
 Orange/White Ground

 Pair 3
-Green       RS-485 A
-Green/White RS-485 B
+Green       Pico TX -> ESP32 RX
+Green/White Pico RX <- ESP32 TX

 Pair 4
 Brown       Ignition Sense
 Brown/White Spare

-Notes:
+## Future RS-485 Conversion

- Use twisted pair for RS-485
- Double conductors for power
- Spare conductor reserved for future use
+Pair 3
+
+Green       RS-485 A
+Green/White RS-485 B
+
+All other conductors remain unchanged.
@@ -0,0 +1,28 @@
+# UART CAT5 Pinout
+
+## Pair 1
+
+Blue       +5V
+Blue/White +5V
+
+## Pair 2
+
+Orange       Ground
+Orange/White Ground
+
+## Pair 3
+
+Green       Pico TX -> ESP32 RX
+Green/White Pico RX <- ESP32 TX
+
+## Pair 4
+
+Brown       Ignition Sense
+Brown/White Spare
+
+## Notes
+
+- Double conductors used for power
+- Shared ground required
+- Spare conductor reserved for future use
+- Pair 3 may later be repurposed for RS-485