ESP32 #4: esp-idf – playing with BLE / Bluetooth

Playing with #ESP32 and bluetooth low energy (BLE)

nRF Connect for Mobile from Nordic Semiconductor ASA

Espressif Esp-idf Release 0.9

***** but 0.9 …. **********
WiFi and BT

WiFi DTIM sleep is not supported yet
WiFi throughput is not optimized yet
WiFi WPA2-Enterprise and WPS are not supported yet
WiFi and BT stacks do not coexist yet
BT/BLE host stack is not supported yet


London’s Gatwick Airport now has 2,000 beacons for in-house navigation

Sophisticated in-house environments such as air-ports and shopping centers could be a pain to find your way around. Even though Google is seeking smartphones with 3D sensors as one probable fix for places GPS won’t precisely reach, another approach is to kit out an interior with tons of Bluetooth beacons – giving handset users located-locked pings to fix onto to figure out where they are.

The UK’s 2nd busiest air-port, Gatwick airport, has decided on the 2nd method to power an indoor navigation system it’s launching as part of a wider, multi-year transformation program.

It’s now completed kitting out its two terminals with roughly 2 Thousand battery-powered beacons to ensure that digital map users will get a more exact blue dot as they walk around. The beacon system will likewise be used to power an augmented reality wayfinding tool – guaranteeing that mobile users will be able to be guided to particular locations within the terminals using on-screen arrows. The beacon system is planned as backing up positioning with +/-3m precision.

Gatwick is about to integrate indoor positioning into some of its applications, and says it’s in discussions with airlines to utilize it for their own applications and services – giving instance of them having the ability to send push notifications to inform individuals if they’re running late, or even consider if they should wait or offload luggage so an aircraft can take off on time.

Retailers and other third parties will likewise be able to utilize the system for proximity detection of potential consumers and push marketing and advertising messages – as a minimum to those who’ve signed up to receive them.

Gatwick says it will not be collecting any private information via the beacons but says “generic information on ‘people densities’ in different beacon zones” will be utilized to help improve airport operations – just like queue measurement, streamlining passenger flows and minimizing obstruction.

The airport has worked with UK new venture Pointr on the system. Along with developing software and managing the system on an ongoing basis, Pointr provides an SDK with support for 3D AR wayfinding to allow third parties to tap into the functionality.

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