Wireless Network52 Bluetooth 4.0: An introduction to Bluetooth Low Energy—Part I URL : http://www.eetimes.com/document.asp?doc_id=1278927 Figure 1. Bluetooth LE channel arrangements. The channel plan consists of 37 data communication channels and 3 advertising channels used for device discovery. Advertising channels are allocated in different parts of the spectrum to provide immunity against interference from 802.11/Wi-Fi ..... Figure 2: Bluetooth LE over-the-air frame break.. 2014. 5. 30. Bluetooth LE(BTLE）'s Advertisement packet format URL : http://todotani.cocolog-nifty.com/blog/2013/02/bluetooth-le-bt.html AD Type 値 名称 0x01 Flag 0x02 Incomplete List of 16-bit Service UUIDs (more 16-bit UUIDs available) 0x03 Complete List of 16-bit Service Class UUIDs 0x09 Complete Local Name 0x10 Device ID Flag bit位置 意味 0 LE Limited Discoverable Mode 1 LE General Discoverable Mode 2 BR/EDR Not Supported 3 Simultaneous LE and BR/EDR capable (.. 2014. 5. 30. 스마트폰을 NFC 리더기로 사용가능 (HCE) 보호되어 있는 글 입니다. 2014. 5. 26. Reverse Engineering the iBeacon Profile URL : http://developer.radiusnetworks.com/2013/10/01/reverse-engineering-the-ibeacon-profile.html The Results The packet sniffer tool let us output its capture in a binary format that I had to write Python script to parse. Once I did, I could see the contents of the individual packets as hex bytes: 0 1 0us (+ 0.000ms) [ 47] d6 be 89 8e 40 24 5 a2 17 6e 3d 71 2 1 1a 1a ff 4c 0 2 15 e2 c5 6d b5 df.. 2014. 4. 25. Advertising position with battery - less Bluetooth Low Energy 보호되어 있는 글 입니다. 2014. 4. 25. iBeacon and IoT: Where We're At, Where We're Going 보호되어 있는 글 입니다. 2014. 4. 25. 이전 1 ··· 3 4 5 6 7 8 9 다음