I am using an Arduino Mega and have the hardware well setup now. I have first been using the sketch Atmega_Hex_Uploader. I can read the SD card. I can also flash the hex file to the target. No problem ...

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 ...