https://meriac.com/about daily 1.0 2025-03-28 https://images.squarespace-cdn.com/content/v1/5e8427a5926e1b5615564524/1606080174860-J8DY9PWF9ZM3Z0T0SDXN/openbeacon-nrf52-pcb.jpg About Me OpenBeacon nRF52 PCB Panel. https://images.squarespace-cdn.com/content/v1/5e8427a5926e1b5615564524/1606079665555-O13S8FID556JYMTAVL6B/blinkenstick-light-painting.jpg About Me Blinkenstick LED light painting - long exposure. https://images.squarespace-cdn.com/content/v1/5e8427a5926e1b5615564524/1606080397275-DST5WG80TRVXY009YJYJ/decapped-nrf51-cpu-die.jpg About Me De-capped Nordic nRF51 CPU compared to a common black ant. https://meriac.com/contact daily 0.75 2020-11-23 https://images.squarespace-cdn.com/content/v1/5e8427a5926e1b5615564524/1606094951925-QAT8KN564ZLVOLK1HR99/01fa6395f3f53a36fe03afc650d57f554b430f5b8d.jpg Contact Fossil Rock, Sharja https://images.squarespace-cdn.com/content/v1/5e8427a5926e1b5615564524/1606094948685-DZLQALW24KQX89REF2JA/01fc22c89a3c4c318ebd0f8483b2dc552cde126bef.jpg Contact Jebel Al Faya, Sharja https://images.squarespace-cdn.com/content/v1/5e8427a5926e1b5615564524/1606094995600-0PH6OT93FQSGZIMEGL98/01b8ac516eea05015bec9fd1a987003c717b0d7abb.jpg Contact Quasr Al Sarab, Liwa Desert, Abu Dhabi https://meriac.com/openbeacon daily 0.75 2020-11-25 https://images.squarespace-cdn.com/content/v1/5e8427a5926e1b5615564524/1606246018472-D98L3AU4YDX1RKUCIATT/infectious_sociopatterns_cover_composite.png OpenBeacon.org - Introduction Left: One of the sixty-nine daily diagrams of contact activity. Right: Thumbnail of the poster with the complete visualization and accompanying text. You can find detailed information here. https://images.squarespace-cdn.com/content/v1/5e8427a5926e1b5615564524/1606257485035-JC8HTVTJBLV8LNO9VKW0/016935e15f6e43d5169d63269e9d890b6100557562.jpg OpenBeacon.org - Introduction Above you can see an earlier tag version with more than 10 years of battery lifetime on a CR2032 coin cell battery. The tag is sensing changes of the potentiometer 10 times per second - and transmits a wireless notification upon change. https://images.squarespace-cdn.com/content/v1/5e8427a5926e1b5615564524/1606254286324-CK8GC7JDWLF3UO9NLYJI/0178897495dc6632ccffa62c1c897d4ce56332d488.jpg OpenBeacon.org - Introduction Latest OpenBeacon Tag Hardware Design https://images.squarespace-cdn.com/content/v1/5e8427a5926e1b5615564524/1606250899219-NQ349BYG6L3O8M5Q378Q/01137b6b108a04972e794294e72cac6e35b0eb3f59.jpg OpenBeacon.org - Introduction OpenBeacon trackers are versatile and can be fitted in 3D-printed watch housings (top, bottom) - compatible to a wide range of 3rd-party watch bands. https://images.squarespace-cdn.com/content/v1/5e8427a5926e1b5615564524/1606251470430-RDPJ528WPW9ZVZ4HS8IX/01896019a8008fa204bcfeb297fb94f6778cc45aac.jpg OpenBeacon.org - Introduction OpenBeacon technology is available in a wide range of applications. https://images.squarespace-cdn.com/content/v1/5e8427a5926e1b5615564524/1606253736788-0ARZ2T482GD4X8W2813C/019615c844fb84f59bcedb20e48e4cb606ded3c5bc.jpg OpenBeacon.org - Introduction The Bluetooth Low-Energy compatibility of the tag allow interesting applications like the parallel emulation of 50 tags. https://images.squarespace-cdn.com/content/v1/5e8427a5926e1b5615564524/1606251041451-YGKL5549PFK738EPNMD1/01b2600431e8bc89ac8d2c73833b7c87f3022d1c9a.jpg OpenBeacon.org - Introduction The tag is powered by CR2032 batteries - and can run offline tracking between 2-4 weeks depending on the tracking interval settings. For other application like wireless sensors, battery lifetimes of many years can be achieved. https://images.squarespace-cdn.com/content/v1/5e8427a5926e1b5615564524/1606257287053-QB0FD4MYJCTXIUCACMUL/0185c068ea28988ac68ee67c7465210ef6d1d78855.jpg OpenBeacon.org - Introduction https://images.squarespace-cdn.com/content/v1/5e8427a5926e1b5615564524/1606246461494-SBKEIL0DC9SPBUGAAS15/01519dbc4a0e626f91d7b007681cba34e6f7bf341e.jpg OpenBeacon.org - Introduction Early OpenBeacon Ethernet Reader with Power-Over-Ethernet feature. https://meriac.com/openbeacon-hardware daily 0.75 2020-11-24 https://images.squarespace-cdn.com/content/v1/5e8427a5926e1b5615564524/1606258758514-MJWACW4U3HCXVB7D7ZTA/01fb52a3426f07a5a8df75c9c4855cc57c53377015.jpg OpenBeacon.org - Design Gallery Watch band housing for OpenBeacon Tag https://images.squarespace-cdn.com/content/v1/5e8427a5926e1b5615564524/1606258751668-27YDFTG1SJW7BRN9BL08/01137b6b108a04972e794294e72cac6e35b0eb3f59.jpg OpenBeacon.org - Design Gallery The watchband housing is protected against moisture using a rubber O-Ring https://images.squarespace-cdn.com/content/v1/5e8427a5926e1b5615564524/1606258882420-UZN4I58JPJN2VNDHC4LE/01a2f7ad83780a1d09fd3c405e1cba285eed7a07b6.jpg OpenBeacon.org - Design Gallery The new nRF52 based OpenBeacon Tag design https://images.squarespace-cdn.com/content/v1/5e8427a5926e1b5615564524/1606258855623-1X3RM4AS1ZPPVB9PPV5C/01cb23e3bf0f1fe63cc01786c5478cc9307cac1e97.jpg OpenBeacon.org - Design Gallery The dual-antenna ethernet reader for OpenBeacon https://images.squarespace-cdn.com/content/v1/5e8427a5926e1b5615564524/1606259046267-H608FXDGVO1YXX5C096W/0156b9fe77f0396aca22d5ee9f9580e7be7e9749f3.jpg OpenBeacon.org - Design Gallery Clip-On housing for the OpenBeacon tag - the button is still accessible. https://images.squarespace-cdn.com/content/v1/5e8427a5926e1b5615564524/1606258843444-PDXYLYH5QOSLJLLFRCYL/019cb7da261cefe5f6aac578372da49f5626c706c9.jpg OpenBeacon.org - Design Gallery The CCC Sputnik Tag https://images.squarespace-cdn.com/content/v1/5e8427a5926e1b5615564524/1606258846214-XXXZYRE9K0CAU6UL26UO/013621bce42664e69de77db51f61e0d154be42df2c.jpg OpenBeacon.org - Design Gallery OpenBeacon on Brucon 2011 https://images.squarespace-cdn.com/content/v1/5e8427a5926e1b5615564524/1606258886604-9GN5XRX63HVL3PEOO7ND/01d88d9b7f481c1c55ad831f50096bcae9a6063b60.jpg OpenBeacon.org - Design Gallery The nRF51 Arm-based OpenBeacon log tag https://images.squarespace-cdn.com/content/v1/5e8427a5926e1b5615564524/1606258849059-ZL68ZDEOI4P0KNM6EE8A/014226ed21ceebfdafecc79121d015a76a2a294a68.jpg OpenBeacon.org - Design Gallery OpenBeacon Reader Light (Non-PoE) as used for Project BLinkenLights StereoScope https://images.squarespace-cdn.com/content/v1/5e8427a5926e1b5615564524/1606258862861-AXM9W9K6FY2LZWJAWISC/016935e15f6e43d5169d63269e9d890b6100557562.jpg OpenBeacon.org - Design Gallery OpenBeacon tag for low power scanning of a potentiometer at 10 scans per second - and transmits wireless notifications upon change. The CR2032 batter can last for up to 10 years. https://images.squarespace-cdn.com/content/v1/5e8427a5926e1b5615564524/1606258875066-DRIYPKCQ2H760Q2G1NNB/0195740745ad586103f4eb92fedc79242c27b8fe5b.jpg OpenBeacon.org - Design Gallery OpenBeacon USB 2 reader - based on the AT91SAM7 Arm CPU. https://images.squarespace-cdn.com/content/v1/5e8427a5926e1b5615564524/1606258879760-LLNUG3T2V3DCV8E1ERNK/01250438069613aea63f3121dbfbda3cec6eb98f2f.jpg OpenBeacon.org - Design Gallery OpenBeacon Tag as used on the CCC Congress. https://images.squarespace-cdn.com/content/v1/5e8427a5926e1b5615564524/1606258854900-LTCVVOBQUU5VJQG4MYWL/013d001c071a2dd8a8275e3891aa37277ce713b23d.jpg OpenBeacon.org - Design Gallery LPC1342=based OpenBeacon tag with big battery for long-term sensors. https://images.squarespace-cdn.com/content/v1/5e8427a5926e1b5615564524/1606258879749-SZEX4HCEP6A1SCRGNABP/01c5dafcf468b8770c8f0f5a8f5390fb0c06cc19cf.jpg OpenBeacon.org - Design Gallery Original OpenBeacon Sputnik Tag as used on the CCC congress. https://images.squarespace-cdn.com/content/v1/5e8427a5926e1b5615564524/1606259011450-YY2C5R8FN0IJJB4TM4IO/0126fad2f8d60ce1fc6a304bdf45bf63c7805ed640.jpg OpenBeacon.org - Design Gallery Badge holder with 3D-printed inlay to hold OpenBeacon tags in place behind a pre-existing name tag invisibly. https://meriac.com/projects daily 0.75 2020-11-23 https://meriac.com/projects/tfm-explorer monthly 0.5 2020-11-24 https://images.squarespace-cdn.com/content/v1/5e8427a5926e1b5615564524/1606097274137-XU2WAMHFEY51JF0C8CGJ/tfm-firmware.png Projects - Arm Trusted Firmware Interactive Explorer MCUBoot - BL2 secure bootloader https://images.squarespace-cdn.com/content/v1/5e8427a5926e1b5615564524/1606097273887-74S7YU6HPHFCY0P9ENOO/mcuboot.png Projects - Arm Trusted Firmware Interactive Explorer TrustZone-M based RTX user application in the non-secure world, complete system memory layout