Use the Atmega328P chip, with Arduino bootloader loaded by you, as the brain of this economical circuit. There are many circuit diagrams available online for building an Arduino on a protoboard, but ...

Just follow the schematic diagram shown below to complete your own Arduino circuit board! About the ATmega 328 chip It is a good idea to use a socket for the chip. If the chip is pre-programmed, you ...

When it comes to learning about microcontrollers, everyone has to start somewhere. [Lady Ada] recently posted a tutorial on burning the Arduino bootloader to standalone chips for those just getting… ...

For more information on the new Arduino Prototyping Set and Bootloader Shield jump over to the Kickstarter website for details and to make a pledge from $18.

At about $30, the Arduino isn't an expensive device, but if you want to make your own, simpler version, electronics blog Hardware Startup shows off how to build an Arduino clone for less than $5.