![]() ![]() All Category amplifiers 50W Power Amplifier With LM3886This is my second encounter with LM3886.Rotary switches controller Rotary switches move in a circle and can stop in several positions.All Category amplifiers All Category amplifiers50W Power Amplifier With LM3886This is my second encounter with LM3886.amplification process All Category amplifiers50W Power Amplifier With LM3886This is my second encounter with LM3886.300 watt amplifier Introduction to the AmplifierAn amplifier is an electronic device or circuit which is used to increa. ![]() LED chaser lights with 555 timer n this electronics project, I have explained how to make simple LED chaser lights with CD4017 &.Time Delay Relay circuit using 555 timer IC In this electronics project, I have explained how to make a simple Water Level Indicator using the B.Atmega328P without Arduino PCB Design Atmega328P microcontroller:The ATmega328P is a high-performance picoPower 8-bit AVR RISC-based micro.Speed control of DC motor using PWM with 555 IC In this 555 timer project, I have shown how to make speed control of DC motor using PWM with a 555 t.Time Delay Relay circuit using 555 timer IC In this 555 timer project, I have shown how to make a time delay relay circuit using 555 timer IC to.I will discuss how this circuit works later in this article. For the constant delay time use a fixed resistor in R2, but for the adjustable off delay time, you can use a 1M POT. The delay time depends on the R2 resistor and C1 capacitor. In this circuit, if you want to use the 5V DC supply, then use the 5-volt relay instead of the 12-volt relay. In this article, I have shared the required components, complete circuit diagram, PCB layout, and all other details for this simple 555 timer project. You can also adjust the off delay time up to 20 minutes with a 1M POT. I have checked that I'm getting an integer between 1 and 100 from rand() and that if I change the _delay_ms() to a number rather than the ran_num it works fine.In this 555 timer project, I have shown how to make a time delay relay circuit using 555 timer IC to automatically turn Off the switch after a predefined delay. I changed Proteus to several different AVR MCU's, but it always gets the same response. PC=0x003A LPM Accessed outside program memory The code compiles no problem but when I run it chaos ensues with Proteus throwing a stream of literally thousands of identical warnings. I'm using Proteus 8 and have simplified my project to an LED to resistor to ground from PB01 as an indicator. _delay_ms(100) //slight delay before looping again ![]() Led_port &= ~ 1 << led_pin //turn the led off _delay_ms(ran_num) //random number put into the delay function ![]() Led_port |= 1 << led_pin //turn on the LED Ran_num = rand() % 100 //get a random number between 1 and 100 and put it into ran_num variable Uint8_t ran_num = 0 //set the random number variable and clear it at each loop The purpose is to use the rand function to generate a number between 1 and 100 then use this number to randomly alter the delay time that an led is on. This is a section of code that's giving me problems in a project and I can't work out why. ![]()
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