This week I’ve been working on the I/O between the ultrasound hardware component and the software component. The ultrasound python script is able to communicated with the software system about the state of parking spots (1: Available, 0: Taken, -1: No sensor). The runtime of distance estimation is also reduced from 2 sec/sensor to 0.1 sec/sensor by multiprocessing and settle-time reduction. Meanwhile I’m working on the design of LED & Raspberry Pi circuit and scripts. I’m on schedule for this week, and I hope to finish the LED controlling part next week.
