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Teensy 3 - Bluetooth Serial Module

Teensy 3 - Bluetooth Serial Module


This super small bluetooth module is custom tailored for teensy 3.x
It features a modern buetooth dongle on a 0.4mm breakoutboard that you can attach directly underneath your teensy 3.x
Communication is very simple using a serial port on the teensy3.
Software examples are available in our github repository.

You can set a custom bluetooth ID and PIN.
Once paired there is a interrupt toggled on the teensy so you can check for bluetooth connectivity outside your main program. 

We used this shield in our Blinkenshield project.


  • Bluetooth V2.1 + EDR
  • Bluetooth Class 2
  • Built-in PCB RF antenna
  • REACH, ROHS certification 
  • Operating Frequency Band 2.4GHz -2.48GHz unlicensed ISM band
  • Bluetooth Specification V2.1+EDR
  • Output Power Class Class 2
  • Operating Voltage 3.3V
  • Host Interface UART
  • Dimension 27mm (L) x 13 (W) mm x 2mm (H) 

Electric Features

  • Storage temperature -40°C +150°C
  • Supply voltage:VBAT -0.4V 5.6V
  • Other terminal voltages VSS-0.4V VDD+0.4V
  • Recommended Operating Conditions
  • Operating Condition Min Max
  • Operating temperature range -40°C +150°C 
  • Guaranteed RF performance range(a) -40°C +150°C 
  • Supply voltage:VBAT 2.2V 4.2V(b)

Power Consumption

  • Operation Mode Connection Type UART Rate(kbps) Average Unit Page scan - 115.2 0.42 mA
  • ACLNo traffic Master 115.2 4.60 mA
  • ACL With file transfer Master 115.2 10.3 mA
  • ACL1.28s sniff Master 38.4 0.37 mA 
  • ACL1.28s sniff Slave 38.4 0.42 mA
  • SCO HV3 30ms sniff Master 38.4 19.8 mA 
  • SCO HV3 30ms sniff Slave 38.4 19.0 mA 
  • Standby Host connection - 38.4 40 μA 


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