Andrew's Progress Report February 1st, 2011

This week I continued to purchase parts for both the electronic circuitry and the enclosure itself.  I decided to build the enclosure earlier in the process because it will allow us to safely prototype with a 110V fused energy source.  After purchasing these parts I built the enclosure, a 110v fused disconnect and a 110v 15 amp GFCI receptacle connected to the load side so various devices can be tested by our device easily in the future.  Inside the enclosure is a terminal strip which insulates the 110v voltage and other connections from the rest of the enclosure.  Also located at the bottom is a ground bar which allows for easy connection of any devices requiring a ground.  Shown below is the enclosure as constructed thus far.

 

On the electronic hardware end of my responsiblities I purchased the components needed to breadboard our initial current and voltage measurement circuits.  This includes capacitors, resistors, a board which allows us to connect 20 pin SSOP to 20 pin DIP package for prototyping and the shunt resistor.  Shown below are the receipts for these parts.

 

Receipt from Engineering Electronics Shop

Receipt from Digikey for Shunt resistor

Next week I plan to have the voltage and current measurement circuits bread boarded and connected to the ADE7763 power monitoring chip.  After making these connections I next plan to connect the ADE7763 to the Atmega328P using SPI communication.  I then plan to work with Ashley to troubleshoot and test our power monitoring circuits.