Cheapest Arduino || Smallest Arduino || Arduino Pro Mini || Programming || Arduino Neno

Intro: Cheapest Arduino || Smallest Arduino || Arduino Pro Mini || Programming || Arduino Neno

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This project is about how to interface a smallest and cheapest arduino ever.

The smallest and cheapest arduino is arduino pro mini.

It similar to arduino Uno but it is small and cheap as compare to arduino Uno.

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STEP 1: Requirements

1. Arduino pro mini
2. Arduino Uno
3. Connection wire
4. 9v battery
5. Led

STEP 2: Prepare Arduino Uno

1. Remove Microcontroller from arduino uno
2. Connect connectors to arduino pro mini

STEP 3: Connections

Arduino pro mini - - - - > Arduino Uno

1. DTR/GRN - - - - - - - > RESET
2. TX - - - - - - - > TX
3. RX - - - -- - -> RX
4. 5V -- - - - - - > 5V
5. GND ------------> GND

STEP 4: Connection of Led

1. Positive terminal of led - - - > 9th pin of arduino pro mini
2. Negative of led - - - > GND of arduino pro mini

STEP 5: Upload Program

1. Connect your arduino Uno to pc
2. Open tool >> port select port where your arduino is connected
3. Open tool >> board >> select arduino pro mini
4. Open tool >> processor >> select as your board. If you don't know your arduino's processor then try each
5. Open file >> example >> basic >>fade
6. Upload this program to arduino

STEP 6: Connect 9v Battery

1. Positive terminal of 9v battery - - - - > RAW pin of arduino
2. Negative terminal of battery - - - - > GND pin of arduino

All done..............

Comments

[russ_hensel]

Consider:
https://www.google.com/search?q=Arduino+pro+mini&safe=off&client=opera&hs=w7O&sa=X&tbm=shop&tbs=p_ord:p&ei=UV94WuPNGcet0gKqs4rwBw&ved=0ahUKEwijusDj847ZAhXHllQKHaqZAn4Quw0I7AQoAg
and
https://www.google.com/search?q=arduino+nano&safe=off&client=opera&hs=5S4&sa=X&biw=1680&bih=845&tbm=shop&tbs=p_ord:p&ei=cl94WvmzN-mL0wLRpZvACQ&ved=0ahUKEwj5tLzz847ZAhXpxVQKHdHSBpgQuw0I5gQoAQ

I have bought some of the very inexpensive ones and so far so good. USB has been fine.

[vishalsoniindia]

Please visit here https://www.amazon.com/HiLetgo-Atmega328P-AU-Development-Microcontroller-Bootloadered/dp/B00E87VWQW/ref=sr_1_4?keywords=arduino+pro+mini&qid=1557210978&s=gateway&sr=8-4

here 3 arduino pro mini in aprox 9$ so each of 3$ .... i think this is cheap then your 9$ usb arduino.

[carlos66ba]

I'd really go with the pro micro rather than pro mini. Then it already has USB and no need to use another arduino to program. Also quite inexpensive.

[vishalsoniindia]

here I am talking about cheapest arduino..........
I have found arduino pro micro is about 8$
But arduino pro mini is about 6$

[xxxCHICAGOxxx]

I've purchased a few pro micros for $4.32 with free shipping.

[vishalsoniindia]

Your better luck.....

[Harsh Dethe]

you shouldn't power pro mini with 9v it's made for 5v and 3.3v

[vishalsoniindia]

You can with RAW pin....