A LPF to stop the battery charge status LED flashing on the TinyPICO board
My PCB layout which will shrink the TinyPICO is done and will be sent out tomorrow.
During the design process I found that the orange LED on the TinyPICO board flashing when no battery is connected. It's a bit annoying, and I use a Low Pass Filter to stop it.
It works on the paper, I will test it on my prototype soon. If anyone has a different solution please kindly advise.
The goal is that before the cap is fully discharged it starts to be charged again. If the RC constant is large enough the voltage on the cap can stay high enough to keep the LED off.
The lower LED flashing rate, the higher RC time constant (Higher value of the RC).
My PCB layout which will shrink the TinyPICO is done and will be sent out tomorrow.
During the design process I found that the orange LED on the TinyPICO board flashing when no battery is connected. It's a bit annoying, and I use a Low Pass Filter to stop it.
It works on the paper, I will test it on my prototype soon. If anyone has a different solution please kindly advise.
The goal is that before the cap is fully discharged it starts to be charged again. If the RC constant is large enough the voltage on the cap can stay high enough to keep the LED off.
The lower LED flashing rate, the higher RC time constant (Higher value of the RC).
Last edited: