MCU DEV BOARDEvery enthousiast need to make is pcb prototype before have tested on its breadboard.Lamentably, all standard proto board are difficult to use and need to make route with the solder wire or make bridge with the solder.Everybody knows, each component or pins need to be connected to other, if we need to use it.It's why this proto board is born.Each hole, permit to connect directly a wire to make easilly a route or a bridge connection.The power line is present on the external board to facilitate the connection from the entire board.Don't hesitate to use it, and accelerate your prototype.Kind regards to all enthousiast.