When selecting an SoC for a BLE application, Sid Shaw recommends developers ask themselves about the maturity of the
software stack and how well it communicates to the phone, since
the phone connection is the ultimate goal. On the hardware side,
consider the power consumption and sleep current of the chip as
well as the chip’s maturity. “If It’s the first generation RF chip, is
the company doing 2. 4 GHz for the first time, or is this the eighth
or ninth generation RF chip because there’s a lot of yield issues in
the chip?” Shaw says.
James Chapman of CSR cautions that the amount of time and
the message that is broadcast will indeed affect battery life. “Even
though it’s all designed to be low power, there’s still the issue
of getting the balance right of how often I want to broadcast or
transmit something for the application I’m using,” says Chapman.
Thirty-five years and 11 billion miles...
Now that’s reliability.
Made in the USA.
Bluetooth Low Energy is taking the IoT connectivity that
is increasingly found on always-on appliances and bringing
that reliability to small, low power, and typically sleeping sen-sor-based devices, wearables, and health monitors. Today’s IC
and software vendors are delivering innovative BLE-enabled base
products and development tools so developers can quickly and
easily bring their own functionality to the stack and add their
devices to the fast-growing Internet of Things. ECN
Figure 3. Texas Instruments’ Bluetooth Smart Sensor Tag includes an
over-the-air download feature to developers can update the firmware
from a central device. (Photo credit: Texas Instruments)
24 Low power