Team Members: Poorvi Bhaskar, Shreyaa Senthilnathan, Surya Senthilkumar Shanthi, Venkata Siva Krishna Madala
Georgia Institute of Technology
Watch our video presentation and demo:
Presentation (5min): https://github.com/krishnamvs/ECE-4180-Final-Project-Fall-22/blob/main/ECE4180FinalPresentation.pptx
Demonstration (5min): https://www.youtube.com/watch?v=4Gfi7DoumOI
In our lab experiments we used a lot of Libraries from the mbed community. We wanted contribute back to them and hone our C++ skills.
We narrowed down on the SparkFun Qwiic ENS160 Air Quality Sensor as it was very recently launched and would be significantly challenging to write a C++ based I2C driver for mbed board.
We also planned on extending our driver to Raspberry Pi 4 Model B and Raspberry Pi Pico. We worked on the Pi Pico driver but faced multiple issues trying to debug it.
Electronics:
- Mbed LPC1768, https://www.sparkfun.com/products/9564
- LCD Display: uLCD-144G2, https://www.sparkfun.com/products/11377
- Pushbutton: https://www.sparkfun.com/products/97
- ENS160 Sensor: https://www.sparkfun.com/products/20844
- Jumper Wires(M/M): https://www.sparkfun.com/products/124
Here is a few picture of our setup we used for the presentation demo.
| mbed | Push Button | ENS160 | uLCD |
|---|---|---|---|
| 5V = Vdd | VCC | VCC | |
| Gnd | - | GND | GND |
| p8 | + | ||
| p9 | SDA | ||
| p10 | SCL | ||
| p27 | RX | ||
| p28 | TX | ||
| p30 | RES |
All the source code is published in the mbed repository.
Link to Final Project Code -> https://os.mbed.com/users/krishnamvs/code/ECE4180FinalProjectFall22/
Link to ENS160 Library -> https://os.mbed.com/users/krishnamvs/code/ENS160_Library/
We developed a C++ based driver for ENS160 for the Raspberry Pi Pico. But due to issues with printf's on TinyUSB in the Pi Pico C++ SDK 1.4.0 we were unable to fully test it. As the Pi Pico C++ SDK matures, we hope that we can verify the driver we have developed.