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How does Bluetooth reduce energy consumption?
BLE technology uses the same adaptive frequency hopping (AFH) technology as classic Bluetooth technology. To minimize the cost and energy consumption of using AFH, BLE technology has reduced the number of channels to 40 2-MHz wide channels instead of the 79 1-MHz wide channels used with classic Bluetooth technology.
What is BLE slave latency?
Slave Latency – This parameter gives the slave (peripheral) device the option of skipping a number of connection events. This ability gives the peripheral device some flexibility. If the peripheral does not have any data to send, it can skip connection events, stay asleep, and save power.
Does Bluetooth have low power consumption?
A Primer on Bluetooth Bluetooth LE provides considerably lower power consumption and cost while maintaining a similar communication range. The protocol allows for the BLE Radio to sleep idle for the majority of the time between RF events, keeping power consumption in the uA range.
Does keeping location on drain battery?
2. Adjust your location services settings Apps like Waze™ and Google Maps™ help you get around using your phone’s location services feature. But if these apps are running behind the scenes and you aren’t traveling, location services can drain your battery.
What is gap in BLE?
Generic Access Profile (GAP) There are two mechanisms a BLE device can use to communicate to the outside world: broadcasting or connecting. GAP defines how BLE-enabled devices can make themselves available and how two devices can communicate directly with each other.
What is BT gap?
GAP is an acronym for the Generic Access Profile, and it controls connections and advertising in Bluetooth. GAP is what makes your device visible to the outside world, and determines how two devices can (or can’t) interact with each other.
What does slave latency mean in Bluetooth Low Energy?
Slave latency ensures that the peripheral (slave) device can skip N connection intervals if it does not have anything to transmit. Note, however, that the central (master) device still needs to poll the peripheral at every connection interval. Average Current Consumption: Slave Latency OFF (Upper Graph) vs Slave Latency Value of 5 (Lower Graph)
How does a slave device reduce power consumption?
Allows a slave to skip connection events without the central device dropping the connection. Thus, a slave device can skip several connection events if it does not have additional data resulting in power savings.
How does Bluetooth Low energy affect current consumption?
The two main factors affecting current consumption in a Bluetooth Low Energy (BLE) device are the amount of power transmitted and the total amount of time that the radio is active (TX and RX). The amount of transmit power required depends on the range required between master and slave.
How is the duty cycle calculated in Bluetooth Low Energy?
The RF duty cycle is calculated based on the 1.5 ms activity in each interval. Slave latency ensures that the peripheral (slave) device can skip N connection intervals if it does not have anything to transmit. Note, however, that the central (master) device still needs to poll the peripheral at every connection interval.