Millis() and interrupt with Blynk

Need Help With My Project
1

The program is a Lightchaser which is controlled via shift registers and interrupts. As you can see in my code, the interrupt and millis are used. I tryed it with a Nano and ESP controller. The code works well without the blynk commands. What is missing to bring the thing to work with blynk? Thanx!

#define BLYNK_PRINT Serial // Enables Serial Monitor

#include <SPI.h>
#include <Ethernet.h>
#include <BlynkSimpleEthernet.h>


char auth[] = "YourAuthToken";
#include "ShiftRegisterPWM.h"

ShiftRegisterPWM sr(1, 16);

void setup()
{ //Serial.begin(9600);
  Blynk.begin(auth);

  pinMode(2, OUTPUT); // sr data pin
  pinMode(3, OUTPUT); // sr clock pin
  pinMode(4, OUTPUT); // sr latch pin
  sr.interrupt(ShiftRegisterPWM::UpdateFrequency::VeryFast);
}

void loop()
{     Blynk.run();

      for (uint8_t i = 0; i < 8; i++) {
    uint8_t val = (uint8_t)(((float)sin(millis()  / 150.0 + i / 8.0 * 2.0 * PI) + 1) * 128);
    sr.set(i, val);

 }}
2

You need to account for both Blynk and your process needing the same constant timing attention… no easy solution, lots of trial and error.

3

hm … so you mean its better i take a second controller (with blynk) and controll the controller with my code (from above)?.

4

That is one option…

https://community.blynk.cc/t/turning-old-arduinos-into-perfectly-usable-iot-devices/23456/2

5

i tryed something different …maybe you could help me with this.

To analyse my problem i left Blynk and tryed the following code.

#include <SoftwareSerial.h>
SoftwareSerial mySerial(0, 1); // RX, TX

#include "ShiftRegisterPWM.h"

ShiftRegisterPWM sr(1, 16);
int c;

float brightness = 90;
float rate = 1000.0;
float sinus = 12.0;

void setup()
{Serial.begin(9600);
mySerial.begin(9600);

  pinMode(2, OUTPUT); // sr data pin
  pinMode(3, OUTPUT); // sr clock pin
  pinMode(4, OUTPUT); // sr latch pin
    sr.interrupt(ShiftRegisterPWM::UpdateFrequency::VerySlow);
   stopp();
 }

void loop()
{
 c = mySerial.read();
if(c==49){   //delete this and the program works as it should! ...but without control
welle();
}
if (c == 48){
stopp();
} }

void welle(){
for (uint8_t i = 0; i < 8; i++) {
uint8_t val = (uint8_t)(((float)sin(millis() / rate - i / sinus * 2.0 * PI) + 1) * brightness);
sr.set(i, val);
Serial.println(millis());
} }

void stopp(){
    for (uint8_t i = 0; i < 8; i++) {
    uint8_t val = 0;
    sr.set(i, val);
  }}

With this code, the movement of the light wave is frozen. In the terminal I got 8 numbers for the millis () and the program stops.

if the command “if (c == 49)” is deleted, then the wave moves as it should (without Bluetooth control). The millis continue to run as well in the terminal.

Would be great if someone could help me out here. i think if i know the failure in this code maybe i could get it to work with blynk also.