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113 lines
4.3 KiB
Markdown
113 lines
4.3 KiB
Markdown
# ESP-IDF iBeacon demo
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From welcoming people as they arrive at a sporting event to providing information about a nearby museum exhibit, iBeacon opens a new world of possibilities for location awareness, and countless opportunities for interactivity between iOS devices and iBeacon hardware.
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## Using Example
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iBeacon is a trademark of Apple Inc.
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Before building devices which use iBeacon technology, visit https://developer.apple.com/ibeacon/ to obtain a license.
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### iBeacon Mode
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This example demonstrates iBeacon-compatible BLE advertising, and scanning of iBeacons:
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- **IBEACON_SENDER**: demo to send iBeacon-compatible advertising data.
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- **IBEACON_RECEIVER**: demo to receive and resolve iBeacon advertising data.
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Which demo will be run depends on the menuconfig, developers can set it in `iBeacon Example Configuration`.
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The default mode is iBeacon Sender.
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### Menuconfig
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Before compiling the demo，developers also need to configure the menuconfig:
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```c
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make menuconfig
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```
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And then enter `Component config->Bluetooth->Bluedroid Enable`
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Because the number of peripherals may be very large, developers can enable the **BLE Scan Duplicate Options**, the maximum number of devices in scan duplicate filter depends on the free heap size, when the cache is full, it is cleared.
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### Event Processing
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In the iBeacon receiver demo, the scan result will be posted to `ESP_GAP_SEARCH_INQ_RES_EVT` event:
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```c
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switch (scan_result->scan_rst.search_evt) {
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case ESP_GAP_SEARCH_INQ_RES_EVT:
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/* Search for BLE iBeacon Packet */
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......
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break;
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default:
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break;
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}
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```
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### Build and Flash
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Build each project and flash it to the board, then run monitor tool to view serial output:
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```
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make -j4 flash monitor
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```
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(To exit the serial monitor, type ``Ctrl-]``.)
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See the Getting Started Guide for full steps to configure and use ESP-IDF to build projects.
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## Example Output
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The iBeacon sender will broadcast iBeacon packet after initializing the Bluetooth protocol stack, and the iBeacon receiver will scan the iBeacon packet.
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### iBeacon Sender
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```
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I (384) boot: Loaded app from partition at offset 0x10000
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I (384) boot: Disabling RNG early entropy source...
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I (386) cpu_start: Pro cpu up.
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I (389) cpu_start: Starting app cpu, entry point is 0x40081010
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I (0) cpu_start: App cpu up.
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I (400) heap_init: Initializing. RAM available for dynamic allocation:
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I (406) heap_init: At 3FFAFF10 len 000000F0 (0 KiB): DRAM
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I (413) heap_init: At 3FFCCCA8 len 00013358 (76 KiB): DRAM
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I (419) heap_init: At 3FFE0440 len 00003BC0 (14 KiB): D/IRAM
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I (425) heap_init: At 3FFE4350 len 0001BCB0 (111 KiB): D/IRAM
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I (431) heap_init: At 40090E58 len 0000F1A8 (60 KiB): IRAM
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I (438) cpu_start: Pro cpu start user code
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I (120) cpu_start: Starting scheduler on PRO CPU
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I (0) cpu_start: Starting scheduler on APP CPU
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I (244) BTDM_INIT: BT controller compile version [44d04c1]
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I (244) system_api: Base MAC address is not set, read default base MAC address from BLK0 of EFUSE
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I (624) phy: phy_version: 3910, c0c45a3, May 21 2018, 18:07:06, 0, 0
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I (654) IBEACON_DEMO: register callback
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```
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### iBeacon Receiver
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```
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I (384) boot: Loaded app from partition at offset 0x10000
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I (384) boot: Disabling RNG early entropy source...
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I (385) cpu_start: Pro cpu up.\0x1b[0m
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I (389) cpu_start: Starting app cpu, entry point is 0x40081010
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I (0) cpu_start: App cpu up.
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I (400) heap_init: Initializing. RAM available for dynamic allocation:
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I (406) heap_init: At 3FFAFF10 len 000000F0 (0 KiB): DRAM
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I (412) heap_init: At 3FFCCC88 len 00013378 (76 KiB): DRAM
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I (418) heap_init: At 3FFE0440 len 00003BC0 (14 KiB): D/IRAM
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I (425) heap_init: At 3FFE4350 len 0001BCB0 (111 KiB): D/IRAM
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I (431) heap_init: At 40090E58 len 0000F1A8 (60 KiB): IRAM
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I (437) cpu_start: Pro cpu start user code\0x1b[0m
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I (120) cpu_start: Starting scheduler on PRO CPU.
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I (0) cpu_start: Starting scheduler on APP CPU.
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I (243) BTDM_INIT: BT controller compile version [44d04c1]
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I (243) system_api: Base MAC address is not set, read default base MAC address from BLK0 of EFUSE
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I (633) phy: phy_version: 3910, c0c45a3, May 21 2018, 18:07:06, 0, 0
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I (663) IBEACON_DEMO: register callback
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I (329203) IBEACON_DEMO: ----------iBeacon Found----------
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I (329203) IBEACON_DEMO: Device address:: 30 ae a4 00 42 82
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I (329203) IBEACON_DEMO: Proximity UUID:: fd a5 06 93 a4 e2 4f b1 af cf c6 eb 07 64 78 25
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```
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