i have connected a transformer to my Atmega but it doesn't seem to provide enough voltage to the other pins for me to interface my other components for it to be powered
Welcome, we can probably help. Please read the forum posting guidelines document. Then post according to it.
Just a transformer? Don't you mean a power supply or power adaptor?
Does it have specifications written on it? Are they suitable for an Arduino?
Post some good, clear photos of this "transformer" and how it is connected.
So what voltage does it supply?
Which ATMega?
it is a power supply with ratings 5V dc and 2A
Please read the document you were asked to.
ATmega328p
Okay, waiting for you to read and follow the posting guidelines...
How is it connected to the Arduino ?
What are the "other pins"?
it's just connected to the ATmega on a breadboard and i just supplied the VCC and the GND of the ATmega directly
But, you mentioned additional mystery circuitry.
To be fair, people are peppering you with questions. But especially as you have just told us that it's a custom build, you need to supply all the information you are able to, in one post, as indicated by the forum guide.
There are probably trillions of ways an ATMega could be breadboarded. It's unlikely that we could guess the right one.
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Rule #1. A power Supply the Arduino is NOT!
Rule #2. If you want reasonable answers you must answer the questions asked.
Rule # 3. Most important We, the volunteers, cannot see what you have and many of us have items with the same name and description used in questions that are NOT the same and do NOT work the same so do post what is asked.
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Also, there are a lot of questions that are easy to anticipate. It's about voltage, but you never told us the basic fact of what the voltage is. Said, just to show you what you handed us. Please don't answer this, post the entire project.
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We have gone through 14 posts and do not know what you have. Post an annotated schematic showing exactly how you wired it, include all power, ground and power sources. Fritzing does not work for me nor pictures of wiring kluges. Links to each of the hardware items will also be need plus answer the open questions. If you do not know how to draw a schematic let us know. If you need software KiCad is available free of charge, you just need to download it. With out the needed information you are on your own.
Thanks, but...
Have you yet read the forum posting guidelines?
And, your question is about insufficient voltage, but after 17 posts, you still haven't said what the voltage is.
Also your photo does not even show the mystery transformer.
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the voltage i get at the other pins aside is less than 1v which is not enough for the other components (TDS meter and pH sensor) which will be interfaced
Have you yet read the forum posting guidelines?
Hopeless.
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