There are many reasons to build your own Arduino circuit on a protoboard or a custom-designed printed circuit board. At the heart of the Arduino platform is an AVR microcontroller, in usual way you ...

Since you lacked the USB interface in your own Arduino board, it becomes necessary to use a homemade/ready-made USB to Serial Converter Module as an efficient and economical solution. Inexpensive and ...

It is copied from Arduino AVR Boards arduino:avr@1.8.6 with its source subset and occupies 0x7E00..0x7FFF. Important compatibility note: this Optiboot/STK500v1 artifact is not yet directly usable by ...