This is modeled after the Lilypad hardware, and fits nicely on top of the plastic case of the microcontroller, allowing it to be used in a breadboard ... is a full Arduino, but the circuit board ...

Compatible with Arduino and Raspberry Pi, it can almost meet all your needs. (Without Microcontroller Board) Breadboard and Power Supply Modules-Include various LEDs, resistors, buttons ...

Before opening the Arduino software, wire up the Arduino according to the circuits page using the 8MHz minimalist breadboard circuit but with a 10k pull-up resistor on the reset pin (physical pin 1).

A few things might inhibit an Arduino, AVR ... I did end up make a simple PCB that plugs into a breadboard, but looking back the simple circuit would have worked just as well placed directly ...

The below circuit diagram shows the complete hardware wiring setup of the Arduino-based Smart Walking Stick for the Blind ...

Want to build a complex circuit-based project with your ... cables to interface the different parts of your Arduino project ...