RFQ/BOM 0 Registrazione / Registrati

Seleziona la tua posizione

immagine dell'utente

How to use timer interrupt to achieve the effect of breathing light?

Technology
dicembre 17, 2020 by Ruben 1642

Because the chip does not have hardware PWM, it can only be simulated by software, but it is found to be flickering after testing, and there is no breathing effect.

If you use the delay method, it can be done, but it is too slow for operating efficiency.


My goal is to use the timer interrupt to realize the breathing light. What should I do?

Tutti i commenti

user image

Esmeralda postato su December 17, 2020

The software opens a 40US interrupt and adds 40US to each grid.

0
user image

Alejandra postato su December 17, 2020

The timer simulates PWM, only the initial segment is a little bit close.

0
user image

Frederick postato su December 17, 2020

Software simulation, just put it in the interrupt.

0
user image

Savanna postato su December 17, 2020

In that case, take a variable and set the range to 0-10, then put interrupt, less than 2 the light is on, otherwise the light is off, and the overflow is cleared. Then reverse the state of the light to see if the brightness has changed. This judgment condition is similar to the duty cycle.

0

Scrivi una risposta

È necessario effettuare il login per rispondere. Registrazione | Registrati