Beginner here. I need to power my project but I don't know how to proceed.
At the moment I am using an:
3.5V esp32 board
5V servos (x 2)
led (x 5)
5mW laser modulo
12V solenoid.
What should I use? I have MOSFET 60V 30A, voltage regulator 5V and a rele 10A 250VAC.
You need to explain the poewr draw it maximum for each of the devices, how they are connected, and what you want to do with them.
Without this info. we would just be guessing.
And you also need to say whether you expect to power this system from batteries or from a mains plug. Different components needed.
Steve
So the esp32 is controlled by a Bluetooth remote controller (PS3 controller). The esp32 controls a pan/tilt system, the laser, the LED, and the solenoid. The LEDs are used to communicate the machine state if it is on if it is connected to the controller and so on. The laser is as a pointer (which can be switched on or off), the same is for the solenoid. Which is attached to a compressor if it is powered it lets flow the air.
I
missdrew:
You need to explain the poewr draw it maximum for each of the devices, how they are connected, and what you want to do with them.Without this info. we would just be guessing.
I am trying to build it and I am trying to find some answers that can drive me to a solution, what I have is as I have described above.
At the moment I am using the esp32 to power the solenoid, which is connected to a 100-ohm resistor, a MOSFET 60V 30A, and a diode. But I don't think is enough power for the whole system.
I have a 12V charger and a 12V jack. I might use it? But how do I connect all the items together?
The only components that I got are those that I have described above.
I have MOSFET 60V 30A, voltage regulator 5V and a rele 10A 250VAC.
Is that charger a nuclear power station I'll say it' s good. Else? Don't know.
Links to the charger, the solenoid, the LEDs.
Post a wiring diagram. The text lacks too much of an engineers data.
Since there is nothing in your list that can provide any power to anything I think you're out of luck. Unless perhaps you're not telling us everything.
Note: most chargers make very bad power supplies. But it all depends what you call "a charger".
Steve
This is what I got in mind? link
Bad link. I don't want to be bombarded with ads or cookies and search for whatever stuff You've found.
Experienced designers start by making every little part work alone. Then bringing working parts together will successfully finish the project.
Other "designers" want to put the lot in a sack, shake it, and believe the project is ready.
What's Your choice?
You know, It works but what happens is that the 5v 7805 turns hot. could you take a look at it?
So after 6 posts, you decided to provide this information NOW!
Please provide a schematic, NOT what ever that incomplete mess of a picture is. As well as the specification of the items you are driving.
lip1:
You know, It works but what happens is that the 5v 7805 turns hot. could you take a look at it?
What voltage is the other 7805?
Good question. You can do some simple check ups. Keep Your finger on the 7805. If it starts to feel unpleasant a heatsink should be applied. Note that the body of the 7805 is electrically connected to the body and isolating stuff might be needed.
You can measure the current out of the 7805 and the voltage drop between input and output. Multiply those to entities and You get the Watt of heat dissipation in the converter. It must be below 1 watt for the 7805 to manage on its own. More watt, use a heatsink.
What is the voltage to the input? Minimum is some 7 - 7.5 volt I think. Maximum..... keep it low. More volt input gives more heat.
Turn off the lot! Make short time tests/investigations according to reply #14.
aarg:
What voltage is the other 7805?
They have the same voltage.
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