Introduction: Programming Arduino Nano Using UNO

Picture of Programming Arduino Nano Using UNO

Hey Guys,

Recently I had just bought a new arduino nano clone (CH340) from ebay for my mini arduino project. After that I I I connected arduino to my pc and installed the drivers but not still working, After few days I just found out how to programme arduino nano using arduino UNO and it was pretty simple too! Follow my steps correctly to gain final results :)

Step 1: Materials Required !

Picture of Materials Required !

* Arduino NANO

* Arduino UNO

* Bread board

* Jumper cables

Step 2: Connection !

Picture of Connection !


Uno to Nano

D13 > SCK

D12 > MISO

D11 > MOSI

D10 > RST (reset)

5V > VIN GND >

GND Note :

If your board's operating voltage is 3.3V then use 3.3V.

Step 3: Prepare Arduino IDE !

Picture of Prepare Arduino IDE !

When wiring is done.

Now we have to do some settings in IDE.

Go to Tools >

Board & select Arduino UNO.

Select the right PORT

And Upload any code :)

The settings is done. Now, open up the sketch you want to upload on your Nano,In Menu, go to Sketch & click on "Upload using Programmer"IDE will compile the sketch & upload it to your Nano. The RX TX leds will blink rapidly on both board, & you will see done uploading. If not, then recheck all the wiring & settings. If you get any problem or you want to give me suggestion, you can write in comment section below. If any error occurs please press reset on nano and even on arduino uno

Happy Programming :)

Step 4: Conclusion !

I wish this Instructables helped you a lot, If it helped you please follow me. If any issue rise please comment below. :)


MOHAMED ASIFA (author)2017-11-30

This is problem

have you connected the uno to nano in correct way as shown in the fritzing sketch

Ss I have connected properly

change programmer to "ArduinoISP"

grayl (author)2017-11-24

I guess I have to ask, if you have a USB cable and can connect to a NANO directly, why use a UNO?

Baasil Biniyamin (author)grayl2017-11-24

Really you are right, but my ch340 driver is not working or my Arduino nano's port is not working. For those who have similar problems can fix it :)

Your NANO is damaged, then. Or the problem (most probably) is in your USB Mini cable/connector.

no my friend i have another nano which is working, the cabel or connecter is working fine :)

About This Instructable




Bio: I am 9th grade student studying at Al-az'har.
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