Keywish Hummer-Bot-2.0 Instruction Manual page 37

Figure 3.1.36 Schematic diagram of connection between motor drive board and peripheral devices
Note: you need to take the infrared tracking wire and the driver board wire from the upper acrylic plate hole
1, plug the expansion board into the UNO R3 board and wire it.
Figure 3.1.37 Effect diagram of Overall assembly
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