KHN Solutions BTBLE40 Bluetooth Module for use with Breath Alcohol Detector User Manual BacTrack BLE Module Rev B System Overview
KHN Solutions Inc Bluetooth Module for use with Breath Alcohol Detector BacTrack BLE Module Rev B System Overview
Users Manual
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User’s Manual
This product is not meant for general use. It is intended for connection in a single
embedded system.
This device communicates with a BacTrack Breathalyzer over the 30 pin connecter
interface. A proprietary UART communication protocol is used and it’s details are
specified in “Smartphone_Protocol_Rev2.7.xlsx”.
The following image describes the pinout for the 30 pin connector interface for this
module.
Connector Details:
The mezzanine connector used on this module is the Panasonic
AXK6F30547YG. The mating connector used for interfacing to this product is the
Panasonic AXK5F30537YG.
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The mating circuitry should interface to the module using a circuit similar to the
following:
Brief explanation of signal characteristics:
- LED connections are open drain and should be connected as shown above.
- SHUTDOWN has a logic high minimum of 1.6V:
- SHUTDOWN: High (power on) (1.6V ~ 2.1V)
- SHUTDOWN : Low (power is shutting down 50ms after high -> low transition) (0V ~
0.5V)
- TX 2.1V : High (1.6V ~ 2.1V)
- TX 2.1V: Low (0V ~ 0.5V)
- RX 2.1V :High (2.1V)
- RX 2.1V: Low (0V ~ 0.5V)
- VCC_2.1V should be used only for external level translation
Other Operation Notes:
- Current should be limited to below 35mA going into the LED Cathode signals.
- V_USB should be provided in the range of 4.35V to 26V
- A single 300mAh Lithium-Ion cell should be connected to V_BAT and should be
present during all operation of the device.
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