diff --git a/README.md b/README.md
index 1ef5308..afaa27c 100644
--- a/README.md
+++ b/README.md
@@ -12,13 +12,14 @@ with a simple web interface, many thanks to Jeroen Domburg for making it availab
Eye Candy
---------
These screen shots show the Wifi configuration page and the esp firmware's log
-
-
+
+
+
Hardware info
-------------
This firmware is designed for esp8266 modules which have most ESP I/O pins available.
-The expected connections are:
+The default connections are:
- URXD: connect to TX of microcontroller
- UTXD: connect to RX of microcontroller
- GPIO12: connect to RESET of microcontroller
@@ -26,7 +27,9 @@ The expected connections are:
- GPIO0: optionally connect green "conn" LED to 3.3V (indicates wifi status)
- GPIO2: optionally connect yellow "ser" LED to 3.3V (indicates serial activity)
-If you are using an FTDI connector, GPIO12 goes to DTR and GPIO13 goes to CTS
+If you are using an FTDI connector, GPIO12 goes to DTR and GPIO13 goes to CTS.
+
+The GPIO pin assignments can be changed dynamicall in the web UI and are saved in flash.
Initial flashing
----------------
@@ -56,15 +59,15 @@ to join its network to configure it. The short version is:
LED indicators
--------------
-Assuming the above LED configuration, the green LED will show the wifi status as follows:
+Assuming appropriate hardware attached to GPIO pins, the green "conn" LED will show the wifi
+status as follows:
- Very short flash once a second: not connected to a network and running as AP+STA
- Very short flash once every two seconds: not connected to a network and running as AP-only
- Even on/off at 1HZ: connected to your network but no IP address (waiting for DHCP)
- Steady on with very short off every 3 seconds: connected to your network with an IP address
(esp-link shuts down its AP after 15 seconds)
-The yellow LED will blink briefly every time serial data is sent or received by the esp-link.
-(This does not function yet.)
+The yellow "ser" LED will blink briefly every time serial data is sent or received by the esp-link.
Wifi configuration details
--------------------------