Bluetooth Low Energy Long Range

By increasing radio transmit power.

Bluetooth low energy long range.

Bluetooth low energy technology operates in the same spectrum range the 2 400 2 4835 ghz ism band as classic bluetooth technology but uses a different set of channels. Bluetooth low energy has a much longer range than is popularly believed to be the case even at version 4. Le 1m is bluetooth 4 and le 2m was introduced in bluetooth 5 along with le coded. But doing this negatively impacted current consumption of your product.

We demystify the long range capabilities of bluetooth low energy with a range test you can repeat for yourself. What determines bluetooth range. Being engineers they want to know what to expect if they use bluetooth low energy also know as ble or bluetooth 4 0 as the wireless technology to send and receive data. However that is no longer the case.

You can now achieve ranges of over 1 kilometer using bluetooth low energy. Informal testing by the author using a basic android smartphone and a bluetooth low energy mcu demonstrated the successful receipt of bluetooth notifications by the smartphone at a distance of over 350 metres from the mcu. Tidc bluetooth low energy long range is a bluetooth smart reference design for long range applications. The first two phys are primarily used for streaming data at close range.

Kw39 38 37 bluetooth low energy long range field tests line of sight field range tests are performed on the nxp kw39 38 37 bluetooth low energy 5 0 long range microcontroller. Instead of the classic bluetooth seventy nine 1 mhz channels bluetooth low energy has forty 2 mhz channels. Here is the scenario and ble range expectations. Before the launch of bluetooth 5 there was just one way to increase range in your bluetooth low energy ble product.

Bluetooth 5 0 coded phy for low energy long range communication. For a 1 6 km 1 mile radio link which is achievable with bluetooth low energy long range modulation the antennas would need to be at approximately 7 meters of height 21 ft to avoid the effect of the ground entering the fresnel zone and affecting the measurement. By rick desmaris gunnar pope graham clarke. Introduction bluetooth low energy was designed to provide considerably reduced power consumption and cost while maintaining communication ranges similar to bluetooth classic.

Unlike other wireless technologies bluetooth technology is designed to support a wide range of achievable ranges between two devices providing developers tremendous flexibility to create wireless solutions that best meet the needs of their target use case. The antenna is installed inside of the block wall building on the second floor. With bluetooth version 5 0 a new long range mode was introduced.