Weng Fei, Michael and Mustafa met on Nov 1, 2014 to work on the following:

• Design amplifier circuit
• Write code for zeroing scale

1. The group implemented an amplifier circuit (picture attached) using TL074. Two op amps on the chip were used and resulted in a signal amplification of 812 times. Bigger amplification is possible with adjustment of the resistors. The group will use INA125 to amplify the signal later in the process as we are waiting on the chip to be received.

2. Zeroing logic was developed (picture attached) and the purchased zeroing push button was tested using lab equipment.