Bluetooth wireless data modules

Meeting full FCC, CE and Bluetooth SIG approvals, the new modules comply with the Bluetooth 2.1 standard. They are also available in either AT command or Multipoint API modes by default. The enhanced Multipoint mode supports up to seven simultaneously connected slave devices; making the modules an embedded solution for more than just point to point Bluetooth connections. According to Laird, the devices are simple to configure and set up. The BTM440/441/442/443 series offers multiple advanced profiles on a single module. One such profile is the serial port profile (spp). The spp mimics a serial cable, thereby taking the place of an RS-232 standard in cable replacement applications. Another profile included is the human interface device (hid) profile. This enables users to use hids such as a mouse, keyboards, and other peripherals over a wireless connection. The hid can be used with custom hid descriptors, which the user defines in the module, enabling them to stream data without sending the descriptor information. A third profile incorporated into the modules is the health device profile (hdp), including the IEEE specialisation for weigh scales. This profile allows for a wireless connection between medical devices in order to transmit and download data.