 
            | Quantity | 3+ units | 10+ units | 30+ units | 50+ units | More | 
|---|---|---|---|---|---|
| Price /Unit | $36.38 | $35.64 | $34.52 | $33.04 | Contact US | 
 Double-layer 42 Stepper Motor Intelligent Robot Car Chassis 4WD Chassis with 80mm Mecanum Wheels
                                                $90.07
                        Double-layer 42 Stepper Motor Intelligent Robot Car Chassis 4WD Chassis with 80mm Mecanum Wheels
                                                $90.07
                                             Single-layer 42 Stepper Motor Intelligent Robot Car Chassis 4WD Chassis with 80mm Mecanum Wheels
                                                $85.18
                        Single-layer 42 Stepper Motor Intelligent Robot Car Chassis 4WD Chassis with 80mm Mecanum Wheels
                                                $85.18
                                             Double-layer 42 Stepper Motor Intelligent Robot Car Chassis 4WD Chassis with 60mm Mecanum Wheels
                                                $85.73
                        Double-layer 42 Stepper Motor Intelligent Robot Car Chassis 4WD Chassis with 60mm Mecanum Wheels
                                                $85.73
                                            
	Arduino mini USB 32 Channel Servo Controller Board Supprot MP3 & Voice for Robot Platform 
	
	MP3 module description:
	- TF card can be plugged in, and playing MP3, and speaking, support servo control board.(Package does not include TF card)
	
	Control board functions description:
	- Connect MP3 module to servo control board, editing instructions with PC software. Then the robot can move while playing MP3 music, or move while speaking
	- Or connect MP3 module to singlechip machine, send instructions to MP3 module through serial port, playing MP3 file
	
	MP3 module features:
	- TTL serial port communication interface, receiving instructions through serial port, playing specific MP3 file (9600 baud rate)
	- Support FAT16, FAT32 file system
	- Support MP3, WAV, WMA file format
	- Max support 32G TF card
	
	Applications:
	- Robot voice, self introduction, playing music
	- Car use voice system
	- Station playing
	
	Package includes:
	- 32ch servo control board x 1
	- MP3 module