User's Manual

PointBlank Product Specification, Rev A
4.2 PointBlank Wireless
The PointBlank wireless interface is a peer to peer protocol between the projector and one or
more pointing devices. The radio operates in the 2.4GHz ISM band and is based on TI’s
SimpliciTI network protocol. At the start of operation the projector and pointing device are put in a
pairing mode to establish a link. Once linked the radio transceiver in the projector receives
measurement data from the PointBlank pointing device and can send configuration data to the
PointBlank pointing device.
Since the radio uses the 2.4GHz ISM band there is potential for interference from other wireless
devices operating in the same band such as wireless LAN (WLAN), Zigbee, Bluetooth, Wireless
USB, wireless phones, microwave ovens and others. The PointBlank wireless protocol utilizes
multiple channels and automatically selects the channel with the least interference.
4.3 PointBlank Software
The PointBlank software includes special versions of the DDP ASIC API and application software
and DLP composer libraries. In addition, software API and application code are provided for the
MSP430 in the pointing device and projector.
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