In this paper, we design and implement a parking guidance
system for Parking Building of Anggrek Campus of Bina
Nusantara University. We use RTOS in PIC32 microcontroller
to enable one microcontroller do three distance measurement
task independently. Each measurement will run in one task,
RTOS scheduler guarantee that each task will execute properly
[4]. PIC32 is high performance 32 bits microcontroller, runs
up to 48MHz system clock, include system timer that suitable
for RTOS.