Hi everybody, I'am having problems to get stable behavior of my electronic assembly. I am using : 1 switched-mode 5V power supply 1 arduino uno 1 shift register 1 uln2803 transistor array (1) 8 channel relay card
i am controling 220v bulbs and it is not stable at all: arduino crashes relay card keep restting from time to time
I think i need to add those decoupling capacitors. please how to? 1. shift reg 2. uln2803 3. and the most confusing how to add it to the power supply 4. the values of those capacitors?
i have some D104K 0,1µf capacitors ... can i use them? thank you for reading this :)