@barichoudhury5591
Fantastic video. Thanks from Bangladesh
@naturetoday6531
I want milli ampere level voltage level indicator, which value of resistor should i use for visually monitoring increasing voltage from 2v to 2.10 ma ,20,30,40,50,60,70,80,90, 3v Ohm range resistor possible?
@walterfutch9554
How much amperage does this draw? Will it draw a 12V 5Ah sealed lead acid battery? Could an on/off switch be placed between the battery + and the first led to reduce any possible draw down?
N/A
Man, do you realize that any voltage below 9V means a that a 12V battery is damaged and dangerous to operate? You're missing the basics.
@ivansegedi
can i connect more leds in parallel with each one but keep the circuit the same?
@PrincernPrince
Your arrows should be showing the flow from - around to + since that is really the way electricity flows
@charly-s
😢 This is too simple, the steps are too big. You must define a voltage step with R-series and give the single steps to a 4-comparator like uc339 and the other comp-Inputs are derived from the battery voltage. A 9V 200mAh block has 7 Ni-MH cells, the discharge voltage is 7x1,05= 7,35V and the full charge voltage is 7x1,5=10,5V and falls back to 7x1,3=9,1V. And in four steps you have to define a cascade between 7,35 and 10,5V=abt 3,2V, this is pro step 0,8V. Remember the uA339 has open collector outputs active high and has to be grounded to zero or minus 0V with a resistor fitting for LEDs, the cathode of the LED goes to ground. This is a logic sequencer wiring which can be used also as timer sequencer to switch a transmitter and a receiver via relais upon the same antenna. 73 de hb9csu
@dankonani3963
Hey why are The LEDs in Series and Not in parallel
@chuksobi593
48v type?
@drulli1
Best way to discharge the battery in short time. 12mA minimum discharge current, minimum. How stupid is that?
@abukalamkalam6485
Water battery's indicator do the make
@MysticMagic2000