This might be a noob doubt so please bear with me.
I am doing a project where I need to light 240 LEDs. The lighting should be such that all the LEDs are lit one by one albeit with a slight delay i.e if I have a line of 10 LEDs the on giving the power the first one lights up then half a second later the second one lights up ( first one will be on) and so on until all ten light up.
In my project I have many such lines with about 10 to 15 leds in each line. I thought of using a microcontroller with a demultiplexer and then control the lighting by giving a delay through software but the number of digital output pins required are too high. I tried to have an RC circuit between each led in the line to induce a delay but that doesnt seem to be working.
Do suggest me what I can do and I hope I have made my problem clear. Thanks in advance.
I am doing a project where I need to light 240 LEDs. The lighting should be such that all the LEDs are lit one by one albeit with a slight delay i.e if I have a line of 10 LEDs the on giving the power the first one lights up then half a second later the second one lights up ( first one will be on) and so on until all ten light up.
In my project I have many such lines with about 10 to 15 leds in each line. I thought of using a microcontroller with a demultiplexer and then control the lighting by giving a delay through software but the number of digital output pins required are too high. I tried to have an RC circuit between each led in the line to induce a delay but that doesnt seem to be working.
Do suggest me what I can do and I hope I have made my problem clear. Thanks in advance.