Hello everyone,
I'm trying to figure out the total current draw in a project i that i will be building in order to design the power supply. The project consists of a graphic equalizer MSGEQ7 which takes the audio signal, splits it into 7 frequency bands and multiplexes the 7 signals into one output. The MSGEQ7 is connected to a microcontroller which controls the signals and powers up the correct leds (example: as the 400Hz signal is present the controller sends the signal to power up only the green leds in my case).
This is from where i got the idea:
https://ubiyubix.wordpress.com/2015/06/27/7-band-audio-spectrum-analyzer-w-msgeq7-lm3915-attiny2313/
I'll just remove the LM3915 and connect different color LEDs to the different frequencies directly with miner changes. I will connect 6 leds for each frequency band, lets say 15mA per led that will give me 90mA per band and the total current when all leds are on will be 630mA. But the problem is that the bands are multiplexed and this confuses me. Does this means that the total current at any time will be about 90mA? Or am i missing something?
Thanks!
I'm trying to figure out the total current draw in a project i that i will be building in order to design the power supply. The project consists of a graphic equalizer MSGEQ7 which takes the audio signal, splits it into 7 frequency bands and multiplexes the 7 signals into one output. The MSGEQ7 is connected to a microcontroller which controls the signals and powers up the correct leds (example: as the 400Hz signal is present the controller sends the signal to power up only the green leds in my case).
This is from where i got the idea:
https://ubiyubix.wordpress.com/2015/06/27/7-band-audio-spectrum-analyzer-w-msgeq7-lm3915-attiny2313/
I'll just remove the LM3915 and connect different color LEDs to the different frequencies directly with miner changes. I will connect 6 leds for each frequency band, lets say 15mA per led that will give me 90mA per band and the total current when all leds are on will be 630mA. But the problem is that the bands are multiplexed and this confuses me. Does this means that the total current at any time will be about 90mA? Or am i missing something?
Thanks!