![]() In this case, the operating voltage is 5V, so the board is powered from 5V.įor the example we load Blink, this example is in the Arduino IDE. If your Arduino Pro Mini works with 3.3V, connect to this pin. The main thing is not to mix up the power connection. To flash the Arduino Pro Mini, you need to connect to the PL2303HX according to the diagram shown in the picture. Flashing the Arduino Pro Mini with a PL2303HX Converter We have successfully flashed the Arduino Pro Mini with the programmer. This should be done as soon as the Arduino IDE shows a line compiled by the sketch. If your programmer does not support the software reset, you have to manually press the reset button on your Arduino Pro Mini at the time of compiling the sketch. Then you open the required sketch and load it with the menu item Sketch -> Load via the programmer. Then go to Tools -> Programmer and select your programmer. You can easily find it by typing “*your programmer model* driver” in the search engine. Suppose it is detected as an “unidentified device” download and install the driver. But, first, you need to connect the programmer to the Arduino Pro Mini as follows:Ĭonnect the programmer to the computer and check that it does not require drivers. It is elementary to flash the Arduino with a programmer. A special driver must be installed to be correctly detected by the computer. The CH340 chip is used for the USB-to-Serial conversion. If you use the Arduino Pro Mini often, this programmer will make flashing much easier and faster. Flashing the Arduino Pro Mini with a CH340 Programmer Go to the Sketch > Load via the programmer to avoid this. So we will overwrite the microcontroller that is supposed to be a programmer. By default, it pours the firmware without using the programmer. Be careful! The standard download button does not work for us. Next, we need to set in the menu “Tools” our flashing board and the type of programmer “Arduino as ISP”. Now we are ready to connect the Arduino Pro Mini. There is already a ready-made sketch written specifically for this purpose in the examples. ![]() ![]() To do this, we connect it to the computer’s USB port and switch to the Arduino IDE. I will show you how to flash Arduino Pro Mini with Arduino Nano, but you can also use other Arduino boards like Uno, Mega, etc., with the same instruction.įirst, we have to configure our board, which will act as a programmer. To flash one Arduino via another, we need 2 Arduino boards, connection wires, a USB cable, and a computer. 5 Final Words Flashing the Arduino Pro Mini with Arduino Uno or Nano ![]()
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