Simple example of how to use VirtualWire to receive messages It is being phased out anyway in favor of smarter RF modules. So very roughly, 25% of the CPU time is consumed by the VirtualWire interrupt processing. With TIMER1 interrupts off, “count” was incremented 199,000 times per second. With TIMER1 interrupts on, “count” was incremented 155,000 times per second. I was curious as to how much CPU time VirtualWire actually consumes, so I ran the standard example receiver program, using a Pro Micro (16 MHz), no receiver and with TIMER1 interrupts on and off. Void InOutMiniSequence(int iRed, int iBlue, int iGreen, int idelay)Ĭolors = colors =(rgb_color) Serial.println(icount) if (vw_get_message(buf, &buflen)) // Non-blockingĭigitalWrite(led_pin, HIGH) // Flash a light to show received good message Volatile unsigned long iSide = 0 // use volatile for shared variables Volatile unsigned long iDirection = 0 // use volatile for shared variables Timer1.attachInterrupt(getData) // blinkLED to run every 0.15 seconds Vw_rx_start() // Start the receiver PLL running From time to time it execute LRDirectionWithStop. The timer calls the getData but it finds data once in a while. It is running InOutMiniSequence all the time. But when I added an additional task to display LEDs strip light sequence, the program does not seem to find transmitted data in the buffer most of the time.

I am using vitualwire examples to send and receive messages. Anyone familiar with the popular 315Mhz RF Transmitter and Receiver Modules FS1000A

Arduino fs1000a example