Equipped with U+A5MINI expansion board and sensor kit, it is easier to build projects, simpler to assemble and wire, and more stable in performance Using U+PROGRAMCARD as the main control board, compared with traditional development boards, it adopts plug-in installation, easy to disassemble and assemble, and has strong scalability Supports a variety of programming software U+ PROGRAM CARD supports for Arduino IDE, for Mixly, Ardublock, for Scratch and other programming software Name: Traffic light kit material package Production type: manual assembly, screw fastening structure Compatible development board: U+PROGRAM CARD Expansion board: U+A5 expansion board Power interface input voltage range: 6-12V Power supply: two external 3.7V 18650 pointed lithium batteries Others: onboard custom function button x1 Supported programming software: for Arduino IDE, for Mixly, for Ardublock, for Scratch The product appearance and printed words may vary depending on the batch, but this does not affect use note:It's DIY kits, needs to finish by yourself. Colour:As Shown Material:Wood + Electronic Components Package Contents: 1 x Diy Kit