Equipped with UandA5MINI expansion board and sensor kit, it is easier to build projects, simpler to assemble and wire, and more stable in performance Using UandPROGRAMCARD 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 Uand PROGRAM CARD supports for 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: UandPROGRAM CARD Expansion board: UandA5 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 IDE, for Mixly, for Ardublock, for Scratch The product appearance and printed words depending on the batch, but this does not affect use note:It's DIY kits, needs to by yourself. Colour:As Shown Material:Wood and Electronic Components Package Contents: 1 x Diy Kit Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is 1-3cm.