Hi all
To whoever interested in using peanut plug in their smartthings system. I am posting a new peanut plug device handler here, which in additional to switch on/off function, it also displays power and energy usage. Here is the display in smartthings.
However, in order to display power and energy, latest firmware is required. As someone mentioned here, updating to latest firmware require Almond 2015, Almond+ or Almond 3 (Almond 2012 will not work because it does not support zigbee). You can still use the device handler if you are not updating the firmware, the power and energy will be zero. The energy display is the accumulation of the power * time, if you press the reset kwh button, it will start counting from zero again.
Here you go, enjoy.