Once the program is launched, we observe the tasks running in an orderly fashion. The Arduino Due and the library allow us to simply create functions that will run in parallel and that do not require additional management of the real-time scheduling of tasks such as the creation of timers. Mega 2560 Arduino Due ARM architecture Microcontroller, Arduino Due, electronics. If there is no delay function in one of the loop functions, then the yield() function must be used in order to hand over to the next task. Arduino Mega 2560 Arduino Uno Microcontroller ATmega328, Arduino Due. It is worth noting that the delay() function allows another task to be activated. The Arduino Due is an impressive microcontroller that offers input/output capability for full control of up to 12 actuators independently as well as speed. To initialize each loop function we use the startLoop command: Scheduler.startLoop(loop2) In this code, we will create several loop functions that will run in parallel. Like other Arduino microcontrollers, the Arduino Due does not allow true multithreading but, thanks to its clock rate, it gives the impression of running tasks in parallel. The library allows to arrange the tasks so that the microprocessor switches from one to another without having to create a dedicated timer. The Scheduler library allows a microcontroller based on a SAM architecture, such as Arduino Due or the Arduino Zero, to perform several actions without interrupting each other. The Arduino Due is a 32-bit board which has an Atmel family microcontroller having 12 analogue pins for input and output and 54 pins for digital inputs and. We will see here how to use the Scheduler library which allows to use several loop() functions. This function will change the state of the LED each time it is called. Next, we will create a function to blink the LED. The following picture shows the LED blinking program using the Arduino Due timer interrupt. Im doing a project where in Im using Arduino Due to measure the time difference of arrival of signals to four piezoelectric sensors. These characteristics allow it to create more powerful multitasking algorithms. The Arduino Due sends high signal and low signal at interval of 500ms which is controlled by the interrupt service routine(ISR). It is therefore much more powerful than an Arduino UNO. The second CAN Bus port reveals itself only through digging through the Arduino Due schematics. This concept doesnt apply only to Arduino boards, of course. It is based on an ARM Cortex-M3 microcontroller in 32 Bits with 84MHz. The first CAN port, represented by CANRX0 and CANTX0 is easy to find due to its visible print on the Arduino Due board. On the Arduino Due, the USB connects directly to the SAM3X8E processor. The Arduino Due board allows multitasking using the Scheduler library.
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