Program Arduino Pro Mini Using Arduino Uno

Hello everyone. Today I am going to show how to program arduino pro mini using arduino uno.

If you already had a arduino uno and you newly buy arduino pro mini then you donít need to buy the USB to serial converter to program the arduino pro mini because you can program pro mini using your arduino uno board. We can make pro mini to act as a central ic for arduino uno board. First of all you have to know which arduino pro mini you are using either it is 5v 16mhz or 3.3v 8mhz. Use only 5 Volt and 16MHZ pro mini with the arduino uno. we can't program 3.3v 8mhz pro mini with arduino uno. Here i am using 5v 16mhz pro mini.Let us see the circuit connection.

Step 1: Video

Instead of reading you can watch video for full description

Step 2: Connect pro mini with arduino uno

Follow the simple steps bellow: the circuit connection
clearly shown in the video

Remove the ic in arduino uno board.

  • Connect arduino uno board 5V pin to pro miniís VCC pin.
  • Connect arduino uno board GND pin to pro miniís GND pin.
  • Connect arduino uno board TX pin to pro miniís TX0 pin.
  • Connect arduino uno board RX pin to pro miniís RXI pin
  • Connect arduino uno board RESET pin to pro miniís RST pin.

    Step 3: Open arduino software for program the pro mini

    Program Arduino Pro Mini Using Arduino Uno

    Connect the all circuit connection now open the arduino software and select tools->Board ->Ardunio Pro or Pro Mini(5V, 16MHZ) vv/ ATmega328. if you select the arduino pro you can see the selected board in the bottom of the software as shown in above image.

    And open the coding you want to program and click the upload button. Now you can see that program uploading into pro mini. you can see the tx and rx led in arduino uno board blinking while program uploading . after uploading of the code. now remove the all connection and give power supply to the pro mini. your code works perfectly on arduino mini. enjoy projects with pro mini. watch the video for to clearly see how to do all steps.

    Thank you for reading.

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