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It didn't work in actual sir.
I tried it with a volt meter, it gives 0.37v with or without a coin inserted. I don't have any oscilloscope to use.
Assuming it would be a pulse, how or what changes should I make?
Tried it in the simulation, it worked differently compared to my original. I hope this might fix the problem. I will try this in actual. Thanks. I'll get back with the update
I have simulated it using proteus with a push button and it works well actually. So that's why i'm confused why it won't work in actual. I tried to test the white wire with a multitester, it gives off a constant .37v. If I will insert a coin the value doesn't change. I could have used interrupt...
The coin selector has no datasheet. So this is totally unknown to me.
It has 5 wires.
RED - 12v supply
BLACK - ground
GRAY (2) - counter +/-
WHITE - data/signal
My current logic:
The white wire will give a data/signal if a coin has been inserted.
This is the code in detecting the data/signal...
Thanks. The easiest to understand.
Does a relay when activated disrupts the controlling circuit? I'm using relays (for me) a difficult circuit, whenever any of the relays are triggered the whole circuit goes kaput. I really don't know why. The relay is used to control a 12v solenoid lock. It...
Yes, that is my main problem. It has only three. And another, 16F877A has only 1 RB0/INT. how would that be done? The 4 timers should work at any given time. I tried it once using one 16F877A but I can't/don't know how it should be done
Saw the image, the problem is the segments are 4 pair of 7 segments are separated. They are not placed side by side the same with the link you gave me.
Yes, 1 micro instead of 4. The problem is, the most easy to get microcontroller available in my area is just the PIC16F877A.
Another thing...
I constructed 4 timer circuits which will countdown from 60 minutes to 0.
They are controlled individually by a single PIC18F4620. The timers will time/function at different times depending which timer would I want to start to countdown. The timers default time is 0.
I was thinking, is their...
With that lot of questions it made me confused. Currently I'm using a relay being controlled by a 2222A transistor at the 1st end of the coil and a 12v source at the other end of the coil with a 4001 diode. I'm trying to use the relay to control a solenoid and a wall power source (220v and/or 110v)
Is that so sir? Okay, I will remove the 2N2222A.
Sir, I have the data sheet but I'm still a beginner at reading the the datasheet.
Any of these information suites what you told me to look for?
Will my circuit connection work?
At default state, the MCU pin is at state 0. If the MCU pin changes state to 1 it activates the 12v solenoid.
Does the Optocoupler make any difference if it is there or not?
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