So today I happened across #AcWriMo (Academic Writing Month), which is a writing challenge for academics to write every day in November. This intrigued me for two main reasons: 1. I have a lot to write in November anyway and 2. I need to develop better habits for writing.
On October 23, I presented the first paper my advisor, Dr. R.S. Sreenivas, and I published on my research of affordable and portable laboratory kits for undergraduate controls education courses. The paper and presentation were part of the ASME Dynamic Systems and Control Conference in San Antonio, Texas. The slides from the presentation are included below and the full paper is available in the ASME Digital Collection.
In order for the Raspberry Pi to read the motor's position from the potentiometer, the analog signal needs to be converted to a digital signal. I selected an MCP3002 analog-to-digital converter (ADC) for this purpose. The digital output from the MCP3002 can be read using the SPI or I2C protocols and the Raspberry Pi has built in drivers in the WiringPi libraries for both protocols. I used SPI in the GE320 kit because the driver already existed in WiringPi, which made the implementation very easy.