scholarly journals Enhance your smartphone with a Bluetooth arduino nano board

2021 ◽  
Vol 57 (1) ◽  
pp. 015015
Author(s):  
F Bouquet ◽  
G Creutzer ◽  
D Dorsel ◽  
J Vince ◽  
J Bobroff
Keyword(s):  
Low Cost ◽  
Low Energy ◽  
Physics Teaching ◽  
Bluetooth Low Energy ◽  
Experimental Physics ◽  
Wide Range ◽  
The Way

Abstract Using smartphones in experimental physics teaching offers many advantages in terms of engagement, pedagogy and flexibility. But it presents drawbacks such as possibly endangering the device and also facing the heterogeneity of available sensors on different smartphones. We present a low-cost alternative that preserves the advantages of smartphones: using a microcontroller equipped with a large variety of sensors that transmits data to a smartphone using a Bluetooth low-energy protocol. This device can be lent to students with little risk and used to perform a wide range of experiments. It opens the way to new types of physics teachings.

scholarly journals A Low Cost Indoor Positioning System Using Bluetooth Low Energy

IEEE Access ◽  
2020 ◽  
Vol 8 ◽  
pp. 136858-136871
Author(s):  
Lu Bai ◽  
Fabio Ciravegna ◽  
Raymond Bond ◽  
Maurice Mulvenna
Keyword(s):  
Low Cost ◽  
Indoor Positioning ◽  
Low Energy ◽  
Positioning System ◽  
Bluetooth Low Energy ◽  
Indoor Positioning System

scholarly journals The museum in the lab: historical practice in the experimental sciences at Cambridge, 1874–1936

BJHS Themes ◽  
2019 ◽  
Vol 4 ◽  
pp. 245-271
Author(s):  
BORIS JARDINE
Keyword(s):  
Early Years ◽  
Cavendish Laboratory ◽  
Experimental Physics ◽  
James Clerk Maxwell ◽  
Wide Range ◽  
Historical Practices ◽  
The Way ◽  
Historical Practice

AbstractThis paper explores the hoarding, collecting and occasional display of old apparatus in new laboratories. The first section uses a 1936 exhibition of Cambridge's scientific relics as a jumping-off point to survey the range of historical practices in the various Cambridge laboratories. This panoramic approach is intended to show the variety and complexity of pasts that scientists had used material to conjure in the years prior to the exhibition. Commerce and commemoration emerge as two key themes. The second part turns to the Cavendish Laboratory (experimental physics) to explore the highly specific senses of time and memorialization at play in the early years of the laboratory (c.1874–1910), and the way these were transformed over the subsequent generations leading up to the 1936 moment. The key figure here is James Clerk Maxwell, whose turn to history involved a mix of antiquarianism and modernism. The paper concludes with an attempt to characterize the meanings and significances of ‘the museum in the lab’. This phenomenon ought to be understood in terms of the wide range of ‘collections’ present in laboratory spaces.

scholarly journals Low-Cost Bluetooth Low Energy Positioning and Timing System for Sports Events

Proceedings ◽  
2017 ◽  
Vol 1 (8) ◽  
pp. 790
Author(s):  
Ángela Hernández ◽  
David Perez-Diaz De Cerio ◽  
Jose Luis Valenzuela ◽  
Antonio Valdovinos
Keyword(s):  
Low Cost ◽  
Low Energy ◽  
Bluetooth Low Energy ◽  
Sports Events ◽  
Timing System

Low cost cloud based intelligent farm automation system using Bluetooth Low Energy

2014 ◽  
Author(s):  
Gautham Rajagopal ◽  
Vaaibhav M Lodd ◽  
Anand Vignesh ◽  
Ramesh Rajesh ◽  
Vineeth Vijayaraghavan
Keyword(s):  
Low Cost ◽  
Low Energy ◽  
Automation System ◽  
Bluetooth Low Energy

scholarly journals A INDOOR POSITION ROUTING (IPR) AND DATA MONITOR USING BLUETOOTH LOW ENERGY TECHNOLOGY (iBEACON-BLE): AN IMPLEMENTATION STUDY

2021 ◽  
Vol 5 (1) ◽  
pp. 38-61
Author(s):  
Batur Alp Akgül ◽  
Bülent HAZNEDAR ◽  
Abdurrahman YAŞAR ◽  
Mustafa Ersan ÇİNKILIÇ
Keyword(s):  
Mobile Application ◽  
Low Cost ◽  
Low Energy ◽  
Sensor Nodes ◽  
Smart Devices ◽  
Smart Device ◽  
Indoor Environments ◽  
Bluetooth Low Energy ◽  
Proposed Model ◽  
Mobile Industry

Rapid advancements in mobile industry have emerged new technological ideas and applications for researchers by allowing smart devices over the last decade. In recent years, the need for Indoor Position Routing (IPR) and Location-Based Advertisements (LBA) systems are increasingly common, IPR and LBA systems have been becoming very popular. Nowadays, it has become possible to create software and hardware applications for IPR and LBA in indoor environments, thanks to developments of different technologies. The development of the system should be based on low-cost technology, it should be suitable for integration and indoors operation. New options and possibilities for indoor locations are presented by the iBeacon-Bluetooth Low Energy (BLE) radio protocol. iBeacon-BLE supports portable battery-powered system that can be smoothly distributed at low cost giving it distinct advantages over Wi-Fi. Therefore, in this study, a technological infrastructure is created to solve the navigation problem in closed locations using iBeacon-BLE technology, a data monitoring information system is proposed for smart devices of currently available technology for IPR, LBA with using iBeacon-BLE. The localization of the objects based on iBeacon-BLE and their combination are determined using the measured data with the developed application. To build an IPR system for indoor environments, the available hardware, software, and network technologies are presented. The concept of the indoor monitoring system and the technologies can be used to develop the IPR system are presented. This system is made up of iBeacon-BLE sensor nodes, a smart device and a mobile application that provides IPR and LBA services by measuring the distance between Transmitter (TX) and Receiver (RX). The proposed model uses the trilateration method, it allows the mobile application to determine the exact location of the object at the micro-level size. The proposed model uses sensory data to identify and trilateration the object’s position.

scholarly journals ProxLogs: Miniaturised proximity loggers for monitoring association behaviour in small mammals

2021 ◽  
Author(s):  
Lucinda Kirkpatrick ◽  
Ivan Hererra Olivares ◽  
Apia Massawe ◽  
Christopher Sabuni ◽  
Herwig Leirs ◽  
...  
Keyword(s):  
Open Source ◽  
Disease Transmission ◽  
Information Transfer ◽  
Low Cost ◽  
Rapid Development ◽  
Natural World ◽  
Consumer Electronics ◽  
Low Energy ◽  
List Type ◽  
Bluetooth Low Energy

AbstractThe ability to monitor associations between wild animals is essential for understanding the processes governing gene transfer, information transfer, competition, predation and disease transmission.Until recently, such insights have been confined to large, visible or captive animals. However, the rapid development of miniature sensors for consumer electronics is allowing ecologists to monitor the natural world in ways previously considered impossible.Here we describe miniature (<1g) proximity loggers we have developed that use Bluetooth Low Energy transmission to register contacts between individuals. Our loggers are open source, low cost, rechargeable, able to store up to 2000 contacts, can be programmed in situ and can download data remotely or through a mobile phone application, increasing their utility in remote areas or with species which are challenging to recapture.We successfully trialled our loggers in a range of field realistic conditions, demonstrating that Bluetooth Low Energy is capable of logging associations in structurally complex habitats, and that changes in received signal strength can be equated to short range changes in distance between loggers. Furthermore, we tested the system on starlings (Sturnidae vulgaris).The ability to include other sensors is retained in our prototypes, allowing for the potential integration of physiological and behavioural inference into social networks derived from our approach. Due to its open source nature, small size, flexibility of use and the active research currently being undertaken with Bluetooth Low Energy, we believe that our approach is a valuable addition to the biologging toolkit.

scholarly journals LOW COST WIRELESS ECG PATCH USING ESP32

2020 ◽  
Vol 12 (1) ◽  
pp. 31-35
Author(s):  
Budi Sugandi ◽  
Muhammad Haikal Satria ◽  
Hamdani Arif ◽  
Nelmiawati Nelmiawati ◽  
Indra Hardian Mulyadi
Keyword(s):  
Heart Rate ◽  
Heart Rate Variability ◽  
Signal To Noise Ratio ◽  
Low Cost ◽  
Low Energy ◽  
Signal To Noise ◽  
Common Mode ◽  
Bluetooth Low Energy ◽  
Common Mode Rejection Ratio ◽  
Rejection Ratio

Elektrokardiograf (ECG) yang bersifat wearable dan nirkabel telah banyak digunakan untuk monitoring jangka panjang karena alasan praktis. Selain Signal to Noise Ratio (SNR) yang tinggi, salah satu manfaat ECG dalam bentuk patch adalah fleksibilitasnya bagi pengguna dalam menempatkan elektroda. Sebagian besar ECG patch nirkabel komersial yang ada di pasaran hanya dapat menampilkan Heart Rate Variability (HRV) saja, tanpa kemampuan untuk menyediakan atau merekam gelombang EKG. Beberapa produk komersial menggunakan dua elektroda saja: Right Arm (RA) dan Left Arm (LA), tanpa elektroda tambahan yang disebut Right Arm Drive (RLD). Selain itu, menyediakan lebih dari satu opsi teknologi nirkabel untuk ECG patch merupakan keuntungan tambahan. Pada penelitian ini, kami membuat ECG patch nirkabel berbiaya rendah yang memiliki kemampuan untuk menyediakan bentuk gelombang EKG (Lead I) dan menghitung HRV secara otomatis. Selain RA dan LA, alat ini menggunakan elektroda RLD untuk meningkatkan Common Mode Rejection Ratio (CMRR). Untuk pemrosesan data, kami menggunakan ESP32, mikrokontroler 32-bit berdaya rendah yang dilengkapi dengan Bluetooth Classic (BT), Bluetooth Low Energy (BLE), dan Wifi dalam modul yang ringkas. Hasil tes menunjukkan bahwa ECG patch yang dibuat menghasilkan perhitungan HRV yang lebih akurat serta waktu transisi 2,7 kali lebih cepat dibandingkan dengan produk komersial yang kami jadikan referensi.

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