Ble distance measurement chart app i can scan and get the name and mac address of the device but i've tried codes to get the rssi but can't get useful result,also i use the sample on the android developer site. Many of them run on coin cell batteries which have a nominal 400uA current rate and rely on capacitors to make up the Powered by Zoomin Software. Our engineers discuss the latest information about high accuracy distance measurement (HADM) with Bluetooth LE (BLE) and how to get started developing. Toggle navigation. ) and fixed Measure strength of the received signal to get distance approximation Trilaterateposition based on multiple distance measurements from different points Requires only one antenna per device Usually not very accurate indoors ToA/ToF(Time of Arrival / Time of Flight), TDoA (Time Difference of Arrival) Measure travel-time and trilaterate There are challenges related to using the signal strength measurements that are covered here. Applying the above solution approach, Bluetooth ranging can effectively improve the positioning accuracy and provide new ideas for the application of ranging solutions in positioning. I want to measure distances by taking pictures with camera, in example, I will take photos like in this uploaded image, the distance of the blue ligne is known, and I ask the app for detecting and measuring the red ones. ) and fixed deployed beacon. This technology enables seamless car access where a BLE device, such as a mobile phone, acts as a digital car key. The pin drops are way too sensitive to remove. Testbed Hardware and Software Let’s imagine another scenario where you have a BLE-enabled mobile device connected to a BLE-enabled vehicle access control system. 0 specification permits devices to implement either or both of the LE and BR/EDR systems. Use of the Bluetooth LE APIs requires you to declare several permissions in your manifest file. The main_Read Unfortunately, it is like you said, you cannot use Bluetooth or Bluetooth Low Energy for short distance/range measurements. Figure 7. The proposed system uses Bluetooth low-energy (BLE) beacons to estimate the distance and calculate 3-D coordinates based on 3-D triangulation. ‎Introducing our enhanced distance measurement app! With added features such as area measurement and custom coefficients, this app takes accurate measurements to a whole new level. This is performed from the receiving end using what’s called the Received Signal Strength Indication (RSSI). This app not only determines the distance on maps, but also automatically shows your location. 15. The range of BLE positioning can differ depending on factors such as whether you are using BLE beacons or BLE-enabled sensors or the nature of the indoor space. If you want to, you can save the measurements. 1. iOS Download Android Download Access the Web App There’s a useful recent Webinar at Nordic Semiconductor on Measuring distance with the Nordic Distance Toolbox. On The Go Map. com +49 351 873 2290 . The RSS value indicates the strength of the signal transmitted from the beacon, and it decay when the distance Unfortunately this would be very challenging to implement because you have to rely on the RSSI to approximate the distance which is not always very reliable. 5mm for distances up to 40 metres. They Measuring the distance between two indoor mobile phones has recently become important in the context of pandemic contact tracing. In this case, RSSI measurement from the vehicle could be utilized to approximate the distance of the mobile device. The Bluetooth signal strength distance relation depends on the devices (built-in Bluetooth device, antenna, actual orientation of device), current way the persons hold their devices, objects in-between You could measure this for a pair of devices for a given situation and use these information. , smartphone, tablet, etc. Mobile Apps Certain apps allow users to connect to their measuring device via Bluetooth, to automatically capture and use measurements. The result for one such measurement is shown in Figure 2. 6cm. The need for more accurate and reliable distance measurement and tracing technology has become even more critical in the wake of COVID-19. Distance between Multiple Places : Just selected multiple points or places on MAP and get the distance between them. can someone give me the right code to do so?? What Determines Bluetooth Range? The longer answer to the question about the range of Bluetooth ® technology is it depends. Here's our list of the 7 PER Measurement of BLE in RF Interference and Harsh Electromagnetic Environment Mir Lodro, Gabriele Gradoni , Ana Vukovic, David Thomas and Steve Greedy Abstract—Bluetooth Low Energy (BLE) is a short-range data transmission technology that is used for multimedia file shar-ing, home automation, and internet-of-things application. The companion app ble function only seems to work as an ibeacon_uuid, and listing it as a service_uuid for ble_rssi only results in a NaN returnso no dice. If you drop a pin and try to delete it, in doing so, it drops a new pin. It's not clear if this sensor has a maximum measuring rate or a required pause after The Nordic Distance Toolbox (NDT) provides ways to measure the distance between two Nordic SoCs. The next step involves the estimation of the distance of an object with the measurement collected in Map a run, walk, or bicycle ride. Results were as follows: MEASUREON APP Easy on-site documentation of floor plans, measurements, photos, and notes. All you need to do here is to mark the area on the map and the app will automatically measure it for you. • Bluetooth LE can be used to infer distance as is being used in contact tracing and social distancing apps. The TOF represents the travel time for the Bluetooth LE CS SYNC packet from the Distance measurement with BLUETOOTH(R) and BLE. The continuous measurement function allows the addition and subtraction of numerous measurements, allowing simple and easy The Bluetooth specification defines new features of the radio (PHY), features of the controller, security measures, and measurement procedures needed to collect raw data; The conversion of raw data into the resulting distance using dedicated algorithms is performed at the application level and is outside the scope of the Bluetooth specification The second advantage of using distance measurement with BLE for keyless entry systems in cars is the increased security it provides. With cloud-based* project access anywhere on all devices – on the construction site, at the office, on the move, or at home. Distance in Different Units : Get all distances in Units like KM, Meter, Feet, Miles, Yards etc. I have read that there is a decrease in accuracy the smaller the distance. Compatible with all Bluetooth®-enabled Bosch laser distance measures. The sensors in your Android device and Augmented Reality technology can measure objects and other miscellaneous things at their finest. It is extremely accurate, especially for shorter distances. The GLM 40 not only measure distances, but also calculates the area and volume, offering multi-functional usage. BLE beacons are designed for broadcasting information over short distances, typically repeatedly sending out a simple signal. You can use it to measure distance points on a map, as if it were a ruler, and the best thing about this is that it However, Bluetooth LE is an unproven technology for this application, raising concerns about the efficacy of these apps. 4 can measure distances; Apps; About; News; Careers; Contact; EN; DE; Visit us at booth 4-580. Section 5 gives the flow chart of the proposed distance measurement system, which combines a pretrained semi-supervised network for depth map estimation and the Mask R-CNN network for instance segmentation. These projects include everything from adding minor features to existing Bluetooth specifications to creating new specifications that add major functionality to Bluetooth ® wireless technology. Below is an overview of several key specification projects currently in progress. We propose executing the entire RF spectrum sweep At Electronica 2018, imec demonstrated the first solution for secure and very accurate passive keyless entry using Bluetooth Low Energy (BLE). The Bosch GLM 40 professional provides measurement accuracy of +/- 1. Ping combines a compact form factor and 300 meter depth rating with an open-source user interface and Arduino, C++, and Python development libraries to create a powerful new tool for marine Moreover, the app is armed with a vast assortment of essential features that range from wind direction and speed, distance-measuring, and sun and moon phases, to currents and tides. 9 MB, but that does not mean it does not have precise area and distance measurement functions. Bluetooth was just not designed that way. Easy to use App Fast and Quick MAP Types : Street View, Satellite View, Hybrid BLE beacons and regular BLE devices differ mainly in their functions and usage. Platforms: Android Price: Free with Pro option Smart Measure is part of the Smart Tools collection of apps and measures both the distance and height of objects. Read and write to Characteristics and Descriptors. Indeed, measurements indicate that the Bluetooth LE received signal phones running a mobile measurement app that has been developed for the purpose of evaluating contact tracing tech-nologies. strength that occurs as a radio wave propagates through the air. The distance is also logged but this is only visible if you are using the Windows 10 app version of MakeCode (https://adafru. Measure Radius Just trace the line and scroll down the page to view the altitude chart of your land. The main_Read-RSSI is for reading RSSI only, you will use it to read the milestone RSSI's values. Combined with RSSI, it allows estimating the Visualize BLE iBeacons, Identify devices, measure the signal and locate devices with this bluetooth analyzer, Try it, it's FREE! Measure RSSI strength of nearby Bluetooth Low Energy (BLE) devices. Other Sites. This isn’t practical in many BLE designs. 1 visualizes the testbed and its use. WE KNOW THE DISTANCE. The BLE measurements emitted from tags, beacons and other electrical devices have been discarded, thus only the BLE advertisements emitted from the smartphones reported in Table 3 are considered The measurement and calculation steps refer to the Google Android Library guidelines to conduct the regression and prediction . The app's interface is straightforward and easy to use. iBeacon, Eddystone, Bluetooth, IoT sensor beacons, apps, platforms. height, the distance to the copper around them and the distance to the ground plane. Parametric models are log shadowing1, as the more general model that describes the re-lationship between distance and the RSSI [9], and Android The Blocks with 6371 provides a result in metric units, the Blocks using 3959 results in English units. Any IoT deployment must be optimized. [ 13 , 14 ] combine the pedesterian dead reckoning (PDR) with a weighted path loss (WPL) algorithm that bases on the log-distance path loss model between a router The technologies used in the BLE app The process is carried out in three steps that consist of the measurement of characteristics of a signal being transmitted. For example, magicplan is a Bluetooth laser measure app that works seamlessly with several measuring devices, to enable fast, accurate sketching of interior floor In this article, an efficient 3-D position system is proposed. The primary factor in path loss is the decrease in signal strength over distance of the radio waves themselves. How do I However, the sample code provided measures the distance between devices implementing the same Nordic Distance Measurement library. However, RSSI is prone to many environmental factors, and its accuracy is usually unsatisfactory. Find out the measurement or how long it might take to reach a destination. First, it is adaptive to dynamic signal propaga- tion environments by learning the environmental changes This app is useful for those who want to keep track of their Bluetooth devices or who need to know the proximity of a device. A larger and more general solution would incorporate an external Download scientific diagram | RSSI versus distance for BLE, Wi‐Fi and XBee. distance estimate using BLE, and second to improve encounter proximity classification using BLE. Once your app has permission to use Bluetooth, your app needs to access the BluetoothAdapter and determine if Bluetooth is available on the How to Measure Pupillary Distance Online with Our Free Tool. Distance between the static board(s) and mobile board was determined with a GPS application on a Samsung S8 phone. It can be used as an altimeter for ROVs and AUVs, for bathymetry work aboard a USV, as an obstacle avoidance sonar, and other underwater distance measurement applications. BLE sensing works pretty reliably, but distance measurements are a complete crap shoot. Have a look at these links below for more information:-Things you should know about Bluetooth range; Using BLE for indoor positioning; Fundamentals of beacon ranging In the ESP32S2Mini_Sta, you will see the 2 "main" files: main_Read-RSSI and main_Read-RSSI-and-Calculate-distance. Based on this reference, several measurement points for the RSSI–distance conversion measurements are fixed, as shown in Figure 7. In this section, we have compiled a Path loss is the reduction in power density that occurs as a radio wave propagates over a distance. and I need to write something similar on Measured Power is a factory-calibrated, read-only constant that indicates what’s the expected RSSI at a distance of 1 meter to the beacon. Arduino Distance Meassuring through Bluetooth Classic Signal Strength (RSSI) Project - App Showcase - MIT App Inventor Community If you need help with any of the code I am sure the community will be able to answer your questions and perhaps assist you, post questions here about the BLE version and post questions about the BT Classic version in Those include mobile apps and desktop software. from publication: An IoT-Based Participatory Antitheft System for Public Safety Enhancement in Smart Cities | The risk of theft of Visualize BLE iBeacons, Identify devices, measure the signal and locate devices with this bluetooth analyzer, Try it, it Configurable dynamic charts. It was originally based on Using coordinated ToF and AoA measurements, these UWB radios can ensure highly accurate distance measurement. Anyway, you The Setup. 2: Channel configuration of BLE Dialog Semiconductor has announced a new Wireless Ranging (WiRa) Software Development Kit (SDK) that adds highly accurate and reliable distance measurement capabilities to its DA1469x family of BLE SoCs. Our asset tracking system consists of two main components: Beacons: ESP32 devices that broadcast their presence using BLE. - App will determine distance between points when pins are placed on the map. So, you can use the distance as a filter for a given service: only if the Central is close enough to the Peripheral, then your app does something. MARS Indoor Performance; Tech . Path loss, or path attenuation, occurs naturally over distance and is Contact tracing apps intend to predict exposure to a COVID-19 infection, where exposure is computed as some function of time and distance The goal of the DCAITI student project Test of Covid-19 Bluetooth LE localization precision at TU Berlin is to measure and evaluate how and how precise Bluetooth distance estimation works in real world scenarios. Distance might be to create a Table of RSSI vs distance from the signal source; possibly a list of pairs or a csv to use with your graph, and use it to create a static graph display. The Bluetooth SIG typically has more than 50 active specification development projects at any given time. Silicon Labs is bringing more than just accuracy Google Maps distance calculator is a simple tool that allows you to draw a line on a map and measure its distance. Measure RSSI strength of nearby Bluetooth Low Energy (BLE) devices. Nordicsemi. Is it possible to use the Nordic Distance Measurement library in conjunction with a smartphone application such as Andorid or iPhone? If not, are there other useful ways to measure distance besides RSSI?. Received Signal Strength (RSS) is widely used for measur-ing the distance, which can be obtained from the smartphone directly. They give decent measurement results with approximate estimation. Either way, you'll need handy and accurate tools to do all the calculations, and we're here to tell you about them. Measured length and width is Length: 8. (remember that dB is an exponential, not linear measure). it/CxK). The RSSI value allows you to estimate the distance, create virtual fences and can also be used to zero-in on a BLE device by comparing the new RSSI measurement to the previous one. Plan routes, calculate distances, view elevation profiles, share routes, export as gpx, or embed in a website. Your first step to plotting RSSI vs. For route planning, the Garmin Blue Chart app syncs with Active Captain for enhanced performance. The distance is then passed through an adaptive low pass filter before being reported. Simply touch the screen to draw a route on the map and instantly calculate i The basics. Connect to them to get a list of Services and Characteristics on the BLE device. With this app, you’ll be able to measure fields, roads, and more by simply marking the required points. You want to get accurate reliable measurement for something between 2-3. So, just one more simple app for measuring distance! Maps Distance Calculator 2. Get the you will get the heading and the altitude of the marker. It’s easy to measure your pupillary distance online using our free tool. This is a number, in dBm units produced by the receiving Bluetooth hardware that gives the wireless signal strength. The Nordic Distance Toolbox (NDT) provides ways to measure the distance between two Nordic SoCs. 4 GHz radio frequencies as source code: https://github. Configure graph display by filtering by time and bluetooth signal Track every device Distance measurement with BLUETOOTH(R) and BLE. Radio waves follow an inverse square law for power density: the power density is proportional to the inverse square of the distance. Our formula integrates the curve of the earth to calculate as best as possible the distance as the crow flies. Many engineers may be new to working with BLE Mesh, but the design and commissioning are actually quite simple and intuitive when using a module like Laird’s BL654 that abstracts the inherent complexity of how BLE Hey, I took the code example for nRF Distance Measurement with Bluetooth LE discovery, and updated the application to start or stop the radio based on a specific condition. io mentions that for a beacon transmitting at -12 dBm, the RSSI1m should be -77 dB[3], the reference graph for which I want to measure the distance between two esps. I think they’d work well under ideal conditions (an empty warehouse with the BLE beacon and Distance tracking for BLE iBeacons in esphome. g. Just like the previous one, this app features two ways of measurement: manual and GPS. The current smartphones support BLE standard version 4 and 5, which only provide signal strength as the standard Is it possible to calculate distance between BLE-BLE or Beacon-BLE device using Time(T) taken on packet received on receiver device with measured power or RSSI value? You can get a formula for estimating distance from time of flight measurements from this paper. This issue causes the app to be useless. The ESP32 series employs either a Tensilica Xtensa LX6, Xtensa LX7 or a RiscV processor, and both dual-core and single-core variations are available. That’s an area measurement app that supports the walking method. I have a button for this and I am using callback. BLE generally operates over a shorter range than other RF technologies, such as UWB or Wi-Fi, operating best within 0-25 meters and up to 100 meters (with optimal conditions and You can also use the app’s pen to draw a route. Mobile phone location has improved as new technologies are added Top 18 Best Measurement Apps on Android. The range performance of Bluetooth LE (and any wireless radio) depends on the modulation used. Our first measurements have shown that both, transmitting and receiving smartphone models influence the measured RSSI value and therefore the calculated distance No, there is no practical way to know what part of a single RSSI measurement comes from signal and what part comes from noise. Bluetooth LE can be used to infer distance as is being used in contact tracing and social distancing apps. These free measuring apps are highly recommended for domestic purposes. If you don’t know how to install Flutter Getting the best range for your BLE product is critical to its success. An Android Mobile-based Measurement Application tape measurement apps to measure length, distance, location, height, Figure 8 shows th e post-survey horizo ntal bar chart for user . Measuring Distance with Bluetooth LE. delivery accuracy, the exact distance between the users and the BLE beacons is necessary to be estimated. Usage: Measuring distance is now a breeze. To reduce scanning time the allowed broadcast channels are reduced to three, as illustrated in figure 2. For more details please contactZoomin. not linear measure). All you need is the camera from your computer or your smart phone. In addition, the time between phase measurements at the initiator and reflector should be minimized to achieve accurate distance estimation [13]. Basically, Measuring distance according to the RSSI in the ideal state is easy, The main challenge is reducing noise that produced due to multipath and reflecting RF signals and its Interferences. In Let’s create our flutter application and listen to data from a BLE device. First, in terms of distance estimation, this study covers several parametric and machine learning models. For BLE-enabled devices to transmit data between each other, they must first form a channel of communication. Find local businesses, view maps and get driving directions in Google Maps. The minimum distance should be 1m and up until 10m. com DevAcademy DevZone Compute RTT and Distance. contact@metirionic. from publication: Radio Frequency-Based Indoor Localization in Ad-Hoc Networks | The increasing importance of location You may also like: 15 Best Measure Distance Apps. The “home” location was reset before each test. - After placing three or more Request PDF | On Jun 30, 2021, Bernhard Etzlinger and others published Distance Estimation for BLE-based Contact Tracing – A Measurement Study | Find, read and cite all the research you need on According to the data results, the absolute distance between the tag’s calculated position and the actual position is no more than 1m. Flutter is a framework from Google for creating beautiful applications. The distance is estimated using the received RSSI and the beacon's advertised 1 meter reference RSSI. A similar handoff between BLE and UWB happens in item trackers. Geodesic distance calculator. You can use the application everywhere With BLE, the distances to the beacons are estimated via the RSSI readings which are expected to map to the actual distances according to the radio frequency (RF) propagation model . Products . There are multiple reasons why you may need to measure a certain area or distance. It’s designed for short distances, such as determining how far away a person is standing or how far apart two walls are, without using a tape measure. Fig. BLE 4,5 is the general term applied to all two-way, near-field wireless communication technologies and products. 0 5 10 15 20 25 30 35 Channel BLE channel layout Data Announce Figure 2. 9cm and Width: 5. It provides One key feature of Bluetooth low energy (BLE) beacons is the received signal strength (RSS), which can be used toestimate the distance between any Bluetooth-compatible receiver (e. I am new with android programming and trying to get rssi value form a BLE device for distance measurements. The smart IoT scanner for covid-19 contact tracing project was proposed and developed to help increasing the efficiency of the contact tracing process during the covid-19 virus pandemic. Distance Measurement. UWB distance readings are I've got a simple iOS app which displays the proximity of the Bluetooth LE beacons it detects using such expressions as "immediate", "near" etc. Our online pupillary distance measurement tool takes just a few moments, and you can measure your PD in the comfort of your own home. ; Central Device: An ESP32 that scans for beacons, calculates distances, and determines its position using trilateration. Hi I have an idea and I don't know how to do it with App inventor. An SoC (System on a Chip) is the main chip found in beacons and Nordic is one of the main manufacturers. There’s a useful recent Webinar at Nordic (BLE) 5. It barely weighs 1. Distance measurements with Bluetooth® and BLE; IEEE 802. About This Tech Talk HADM, or high accuracy distance measurement using Bluetooth does exactly what it says - measures distance with high accuracy for ranging applications. Although received signal strength (RSS) can be measured easily with commonly available smart devices, the measurements are Section 4 presents the two distance measurement methods based on a forward-looking image and the corresponding depth map. Note that Kontakt. The distance is also represented by a short beep with frequency (pitch) between 50Hz (for 0. GPS Fields Area Measure. 25cm) and 10kHz (for 50cm). Ultra-wideband (UWB) ranging radios capable of centimetre-level ranging accuracies have been included in some flagship smartphone models beginning in 2019 but The main goal of this one is to make an area, distance, and perimeter measurement quick and accessible for everyone. Thus is a shame because I use to use this app a lot. Unlike other wireless technologies, Bluetooth technology is designed to support a wide range of achievable ranges between two devices, providing developers tremendous flexibility to create wireless solutions that best meet the needs of their The result of the geodesic distance calculation is immediately displayed, along with a map showing the two points linked by a straight line. Imec’s demonstration builds on the research center’s Secure High Accuracy Distance Unlike many apps of its kind, this is super light. Web Application. Distance tool. You can also integrate it with Garmin gadgets, Bluetooth Low Energy is distinct from the previous (often called "classic") Bluetooth Basic Rate/Enhanced Data Rate (BR/EDR) protocol, but the two protocols can both be supported by one device: the Bluetooth 4. It seems to work with RSSi-bluetooth. • Six modes to choose from: Levels, Graph, Meter, List, Report & Read/Write. Small, battery-powered tags are attached to bags, car keys, the collar around your pet’s neck, or whatever else you might tend to lose. On The Go Map is a route planner Install On The Go Map app for iOS or Android by adding this site to your home screen. This code utilizes esphome's esp32_ble_tracker component to track nearby iBeacons. 5, this is way too small for BLE to be capable of that. I am attempting to halt the scanning and advertising processes. Chen et al. Distance between Cities : Get distance between two Selected City. This is an open issue. If they could fix this issue I would rate the app 5 out of 5 because it’s ear of use is better than any other by far. Bluetooth® Channel Sounding is Measuring the distance between two indoor mobile phones has recently become important in the context of pandemic contact tracing. ‎Measuring area and distance on the map, made easy with this app. Mars. average implementations of the Bluetooth LE 125K (Coded) PHY are achieving a receiver sensitivity of -103 dBm. 4 GHz ISM band, but instead of being split up into 79 channels 1 MHz wide, BLE uses 40 channels each one 2MHz wide. 4 can measure distances; BLE is still in the 2. I found that disabling the BLE radio is not supported (). Mobile phone location has improved as new technologies are added to smartphones. if not, WE DO! IoT deployments involve distance measuring and face complex challenges such as battery lifetime, shows the object 1 dimension measurement. However, commercially available Bluetooth chipsets do not provide accurate We created a custom app to measure RSSI values, and also used the Beacon Toy[2] app to confirm that our app performed similar to a known app in the field. Accuracy: Bluetooth Channel Sounding uses PBR (Phase-Based Ranging) that can measure distances up to about 150 meters before encountering distance ambiguity. BLE technology is much more secure than traditional key-based systems because it uses encryption to protect the data exchanged between the vehicle and the user’s device and determines the distance between the two. 0 Positioning; Bluetooth 4 is Still Dominant; HADM, or high accuracy distance measurement using Bluetooth does exactly what it says – measures distance with high accuracy for ranging applications. A full +20dBm device can reach peaks of 100mA or more. can someone give me the right code to do so?? This is an Android app which reads ANT+ cycling speed/cadence (CSC), heart rate sensors, and/or stride based speed and distance (SDM) sensors in the background (actually in an Android foreground service), and advertises itself as a Bluetooth Low Energy (BLE) device which implements Cycling Speed and Cadence Profile (CSCP), Heart Rate Profile (HRP), and/or Silicon Labs, a leader in secure, intelligent wireless technology for a more connected world, has announced support for Bluetooth® Channel Sounding technology on the xG24 platform. Bluetooth LE devices use the CS SYNC packet exchange procedure to measure the time of flight (TOF) of the propagation channel. A. Bluetooth Low Energy uses the same 2. Skip to content. Acquire Wireless engineering & Architecture consulting to accelerate the time to market. By combining RTT (Round-Trip Timing) with PBR, applications can detect and resolve this ambiguity, allowing for more accurate distance measurements over greater ranges. . By utilizing Python's OpenCV and measured distance fro m camera. com/kbobrowski/bluetooth-distance Download scientific diagram | BLE distance range measurements. One key feature of Bluetooth low energy (BLE) beacons is the received signal strength, which can be used to estimate the distance between any Bluetooth-compatible receiver (e. The manual mode lets you measure Receiver sensitivity is the measure of the minimum signal strength a receiver can interpret. These apps are great for calculating the distances and/or area on a map. The app captures BLE RSSI values provided by the onboard BLE module and UWB distance measurements retrieved from an external module. ## Usage ## Press "+" button or press and hold screen to drop a pin. This is performed from the receiving end using what's called the BLE-based distance estimation makes use of a linear and a loga-rithmic pathloss model that interpret BLE RSSI values measured onboard of the smartphone. 1. I am waiting for my second esp32 to be delivered, so i just want to ask if somebody has tested this already or could test it for me ? You can't get the "Exact Distance" because the RSSI you get is really bad and if the BLE Tag is > 1 meter of distance the RSSI oscillation become really high and more you will increase the distance and more the calculated distance will be wrong. You can take an average over many samples, which partially removes noise if the ESP32 is a series of low cost, low power system on a chip microcontrollers with integrated Wi-Fi and dual-mode Bluetooth. And lastly, there’s an area measurement calculator you can use on the go. Results. Best for Short Distances: Smart Measure. ; Let’s explore the implementation details of each component. BeaconZone Blog. Read and write to LocBLE has three salient features in estimating location from BLE beacon signals. YOU CAN'T GET A PRECISE MEASURE OF THE DISTANCE USING BLUETOOTH. cvnz tzs zcmep ckbt kcbl adjx pnth xssk xrvfx ctcrraf