Arduino Nano with ATmega328P is available in two variants: "ATmega328P" and the older "ATmega328P (Old Bootloader)". The newer variant uses an optimized bootloader which has double upload transfer ...

Arduino Nano with ATmega328P is available in two variants: "ATmega328P" and the older "ATmega328P (Old Bootloader)". The newer variant uses an optimized bootloader which has double upload transfer ...

You can then upload the compiled code to the Arduino board by selecting Upload. You can use the upload and serial port options from the PlatformIO toolbar to easily upload and monitor serial output.

This article focuses only on how to program an ATtiny85. So it is not a complete guide on also how to set up and program an Arduino. In this article, I will do all examples with an Arduino Nano.

To give this a try yourself: Attach an Arduino Nano BLE Sense 33 board to your development machine. Load the arduino_nano_ble_write_flash.ino sketch into the Arduino IDE. Open the Serial Monitor.

Use the CCL peripheral of the ATmega4809 on the Arduino Nano Every board to create a WS2812B "NeoPixel" addressable RGB LED driver without bit-banging.