Simple Led Circuit Board. Substituting these values in the above equation we can calculate the value of series resistance as. Othmro aluminum circuit board 5730 smd led chip module 3w 300ma warm white 3000k diameter 23mm saving power decorative for ceiling light downlight spot light 4 pcs.
Connect the positive terminal of the battery red battery clip lead to the 1 kilo ohm resistor. The resistor is placed in the circuit so electricity does not flow fast enough to burst the led. You connect the longer lead of the led to the resistor and the shorter lead of the led to the negative side black wire of your battery pack.
This circuit diagram tells us clockwise from the battery.
This circuit diagram tells us clockwise from the battery. Step 1 select your method of imprinting the circuit schematic on the copper board. However you can not connect them directly with the power source connecting them directly will immediately destroy them so it is always suggested to use a proper current limiting resistor with led s but using a. Connect the cathode of the led to the negative terminal of the battery black battery clip lead.
