Revision as of 12:21, 5 February 2019

Overview

This page will help you restoring the EmonWRT3 system if the device can not connect to any network after misconfiguration.

The proposed procedure is to connect to the Emonwrt3 using serial (USB). Then reflash the operating system and re-install EMonwrt3 software.

Remove the Microcontroller from the Base Board. This is the wide 28 pins chip. This must be taken off the board.
Setup the USB adaptor for 3.3V using the small jumper.
Connect the USB adator to the (Gnd,Rx,Tx) connect on the base board. The USB adaptor also has (Gnd,Rx,Tx).
Connect the USB adaptor to your computer. A red light should be lit.

It should look as this picture here in the end.

Start Putty and setup a serial connection.

Click on Open. A black background window will appear. Keep this aside for now.

Download OpenWRT Chaos Calmer here. Save this somewhere on your computer.

@@ Line 22: / Line 22: @@
 =Software Preparation=
+==Putty==
+[[File:Putty_example_01.png | right | 150px]]
 [https://www.chiark.greenend.org.uk/~sgtatham/putty/latest.html Download the Putty software from the web]. Install it on your computer.
@@ Line 29: / Line 31: @@
 * '''Speed''' 115200
-[[File:Putty_example_01.png | right | 150px]]
+Click on '''Open'''. A black background window will appear. Keep this aside for now.
+==OpenWRT==
-Click on '''Open'''. A black backgound window will appear.
+[http://archive.openwrt.org/chaos_calmer/15.05/ar71xx/generic/openwrt-15.05-ar71xx-generic-tl-wr703n-v1-squashfs-sysupgrade.bin Download OpenWRT Chaos Calmer here]. Save this somewhere on your computer.