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Small wireless board to control tiny DIY toys over bluetooth

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Being powered with cell phone battery, this board can drive small toys - up to two DC motors, several input/output pins, discharge control.

blutle Web Site


  • Size about 25*45mm(1*2 inch)
  • Power source - 1-cell LiPo accu (spare or even old cell phone battery is a good choice).
  • Can drive one or two DC motors (PWM i.e. throttle control, forward and backward) up to 1A current.
  • Reports battery voltage and powers down entire toy if the battery is discharged.
  • Reports sensor values.
  • Has 5 to 8 free GPIOs for buzzer, LEDs or simple sensors
  • I2C bus for advanced sensors.
  • Can be controlled from any bluetooth-equipped device


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Additional Project Details

Intended Audience

Advanced End Users

Programming Language

C, JavaScript, Java



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