in the introduction says" On the top of the board there are two solder jumpers which need to be connected before emonTx Shield can operate. To make connection the middle solder pad should be connected with a blob of solder to either the left of right solder pad, depending on the connection required. The solder can be re-melted and adjusted at a later date if required."
i did not see solder jumpers, what does it mean by middle solder i think a schematic will explain my Q well..
thank you
Re: emontx shield hardware setup
A schematic & PCB layout are on Solderpad - see Modules > emonTx Shield.
Re: emontx shield hardware setup
http://openenergymonitor.org/emon/emontx/make/assemble/buildguide22
There is a picture on the buildguide very clear of the latest 2.2 board:
Also notice that the other jumper needs to be left untouched.
Wxll
Re: emontx shield hardware setup
Wxll
This is not helpful for chunyang's original question. He has an emonTx SHIELD, not an emonTx. Your pictures and link are for the emonTx.
Re: emontx shield hardware setup
True, since you already answered him on the shield I though let's try the emonTX instead perhaps it helps :-)
Think it should work out now.