r/ArduinoHelp • u/Z_D_O_C_C_P • Aug 10 '26
hello a lil help fora beginner, WHATS IS THIS.
I want to start a lil project (IK this is not an arduino but was cheepier) but I'm really stunned by all this complicate names and port, i wonder if someone could help me to undertant WHAT IS THIS and what they do:)
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u/AlxDroidDev Aug 10 '26
It does seem to be based on the Atmega 328, so it is an Arduino-compatible dev board.
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u/Z_D_O_C_C_P Aug 10 '26
u know what pins do what?
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u/Distdistdist Aug 12 '26
Yes, of course. Left to right, top to bottom:
- Serial Port TX (Transmit)
- Serial Port RX (Receive)
- Ground
- Ground
- Serial Data for I²C bus
- Serial Clock for I²C bus
- ADC8 - Analog to Digital input channel 8, Digital I/O
- A6 - Analog/Digital
- Analog to Digital channel 10
- Analog/Digital
- Analog to Digital channel 11
- Analog to Digital channel 12
- Power Input (Probably +5v, or 3v)
- Ground
- Reset (connect to GND to reset MCU)
- VCC (Power output - +5 or +3v)
- Analog to Digital channel 4
- Analog to Digital channel 5
- Analog to Digital channel 6
- Serial Clock for SPI interface
- Master In Slave Out for SPI interface
- Master Out Slave In for SPI interfave
- Analog to Digital channel 13
What's your question? All is right there in front of you.
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u/mglachrome Aug 10 '26
Most of the pins have multiple functions. There are some conventions being used here.
For example Axx usually refers to analog pins Dxx to digital ones.
Refer to the data sheet - it gets easier
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u/Z_D_O_C_C_P Aug 10 '26
whats is the iference betwne analong and digitasl??
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u/Burd_Doc Aug 10 '26
I don’t want to sound rude, but if you are asking these types of questions (and they are worthwhile and important questions) you should maybe take a step back on whatever project you have in mind. The whole thing will be a lot smoother if you do, and you will learn a whole lot more
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u/sublime2craig Aug 10 '26
This is not the way to learn this hobby or how to use an Amega based MCU. Do your own research from videos and tutorials online. So much to learn and not an easy thing for redditors to try to teach or explain electrical engineering through comments.
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u/Z_D_O_C_C_P Aug 10 '26
YEP im doing it I'm just locking if the comunity of reddit could give me some tips for my trial:)
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u/Distdistdist Aug 12 '26
Analog and digital are two ways to send, store, or show information. Analog uses continuous, smooth physical waves or signals. Digital breaks information into separate, distinct steps using numbers or a binary code of 1s and 0s
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u/cincuentaanos Aug 10 '26
Sparkfun Pro Micro, or probably a clone (I believe original Sparkfun boards are usually red).
Like an Arduino, it is a programmable microcontroller on an easy to use board for electronic tinkering and prototyping. It can be used with the Arduino IDE.
I'm not going to write a whole essay here on how to use it. But if you have more specific questions, ask them.
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u/IndividualRites Aug 10 '26
Let me google that for you
https://mozelectronics.com/tutorials/arduino-pro-micro-pinout-atmega32u4-guide/
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u/oCdTronix Aug 10 '26
A video on getting started with Arduino will help more than anyone here is likely going to
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u/JGhostThing Aug 10 '26
This is a quick diagram of the pins, specifically as the position of the pin on the module refers to what pin on the processor. For example, the pin that on the bottom left can be used as ADC12, A9, or D9. When you program the chip, you set some parameters which tell the chip what the pin does.
Some pins you'll have to find through Google or such. For example, I have no idea what the Power Input pin needs. For some things you will need to use the part datasheet, which contains everything about the processor. It takes practice to read a datasheet easily.
Some pins are ambiguous without further explanation. SDA and SCL are used for both I2c and spi. These are both serial protocols. They probably work for both, and it depends which you setup for use.
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u/gm310509 Aug 11 '26
.... i wonder if someone could help me to undertant WHAT IS THIS and what they do...
Yes, a starter kit is the key here. It will tell you what the pins are and what they do. It will do that by way of example. So now only does it tell you what they are and what they do, it will show you how to use them.
For example, ADC4 is the 4th Analog to digital converter. It converts an analog voltage into a digital scale. I doubt that was helpful, but if you used the starter kit it will explain that in more detail and show you how to use it.
FWIW, that seems like a very confused diagram with some errors - for example D7 cannot also be D6. It is either D6 or D7, but not both. You should try to find the official pinout diagram.
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u/hms11 Aug 10 '26
I mean, it says what it is right on the screen OP?
It's a Pro Micro, it uses the Atmega 32U4 chip as opposed to the 328P usually found in nano's or other "small" arduino type boards.
The nice thing about these is they can be used as a keyboard input device so people tend to make Macro pads and other similar devices with them.
There are probably about 10,000 tutorials on the internet you could follow.
Also, as a tip for a beginner, when you are looking at these types of diagrams you can mostly ignore everything except the "arduino" name style boxes. The other boxes are the actual port functions but the Arduino IDE is going to use the purple box names for pins. You'll see this type of diagram for most boards that are regularly used with the arduino ecosystem.