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Bluetooth Blue-KC20 PDF
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    Class 2 Standard, Bluetooth V1.2 spec.
  • Up to 20m range
  • External antenna port
  • Supports BT Serial Port Profile (SPP)
  • Dimensions (mm): 15 x 21


The KC-20 is nearly identical to our KC-21. Differing from the KC-21, this module utilizes an external antenna port for off module antennas, offering flexibility of location and antenna.

One of the most capable Bluetooth modules available, the KC-20 Bluetooth OEM Module is designed for maximum flexibility. The KC-20 module includes 11 general purpose input/output lines, and offers high speed serial communications up to 921K baud.

The KC-20 is a surface mount PCB module that provides fully embedded, ready to use Bluetooth wireless technology. The reprogrammable flash memory contains embedded firmware for serial cable replacement using the Bluetooth SPP profile. Other popular Bluetooth profiles are available.

Key features:

  • Fully embedded serial port profile (SPP)
  • RF module subsystem w/ external antenna
  • 50 ohm antenna port
  • Class 2 radio
  • Bluetooth v1.2
  • Wireless data communications
  • ARM7 microprocessor up to 48MHz
  • 8Mb flash memory
  • 921K baud data throughput
  • Range up to 20m LOS
  • SPI interface, up to 24MHz
  • 11 general purpose I/O
  • AT command set
  • Multipoint capability


KC modules come standard with our powerful kcSerial firmware. Controlling the module is easy through any terminal software program. Communicating with the module is simple with ASCII AT-style commands.
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