ProtoShield Extension Board * Contain Mini Bread board * Bread Board Adhasive To PCB with double-sided tape * ProtoShield prototype extension board and two buttons with two LED circuits can be used directly The item is as the picture d iscri bled. It is completely compatible with Arduino Uno R2. It can also use on Arduino Uno R3 devel opment board , but 2x2 heade rs can't be used.
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