From bed7ab00d607be2c2157bff9bfedca8b37ff785a Mon Sep 17 00:00:00 2001 From: Thorsten von Eicken Date: Fri, 19 Jun 2015 12:38:23 -0700 Subject: [PATCH] updated README --- README.md | 17 ++++++++++------- 1 file changed, 10 insertions(+), 7 deletions(-) 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 --------------------------