Rs232 bluetooth project Jobs

We have a hardware built on ESP32 and MEMS microphone. This hardware sends data from MEMS via bluetooth classic. We are looking for an expert embedded engineer to help us with 2 phases: Phase 1: Currently, while sending data, we get ESP_SPP_CONG_EVT every 6 seconds which causes loss in data transferred. Phase 2: Move the entire program to BLE.

To help us get Bluetooth working with large packets, and to pipe BLE error codes back to a connecting Andriod device so the developer has insight into how their design is working. It is a MANDATORY requirement to have development expertise with the BLE stack of TI 26x2 SimpleLink devices. Otherwise please do not apply.

Long Range mode Audio RX/TX – i.e. Coded PHY, 125 kbps Bluetooth 5.2 LE Coded – Need at least 2,000 Meter range, line of sight using skyworks amplifier The LE Coded PHY Hardware and Software/Firmware Project to deliver Duplex Audio Stream between two dedicated BLE devices with a minimum of 48 hour standby time and 6 hour talk time direct link between headsets

I need to create an add for my SleepMask which is basically a headset combined of a sleep mask and a bluetooth headphones. I'm still a student so I'm looking for something cheaper

I need to create an add for my SleepMask which is basically a headset combined of a sleep mask and a bluetooth headphones. I'm still a student so I'm looking for something cheaper

I need to build a mobile app for indoor maping. The map should be shown as 3d. I prefer to use react native, but I'm not sure what is the best option for me. Also the app should guess the rough location by reading the distributed bluetooth beacons.

I am looking for a programmer with Basic BlueTooth app in C/C++ experience. The program will be running on Linux. Please see the attached file for a description of requirements, if interested please provide a cost estimate.

I will need an expert in Android native to implement this: The task is to implement an android application that will use Bluetooth low energy beacons to show me my location in the museum and when user passes by certain exhibits. It will also give user the possibility to learn more about these exhibits, like a notification or something similar. A full report explaining: 1. The logic 2. The code architecture (filesystem/ list of classes and their functionality/ list of basic methods and their functions) 3. Use case with screenshots The museum doesn't have to be real, we'll go by fiction. As you prefer. Budget: € 90 EURO Deadline: 29/10/2022 If you need anything else, let me know.

To build a device, proof of concept to prototype.

I'm working on IoT project. I'm not very technical. I need help to write a python code to allow raspberry pi to automatically connect two Bluetooth devices to specific serial ports rfcomm0 and rfcomm1. and then I want the python script to automatically start on reboot. would require Video call to show everything in details. I might not be very clear about this so please ask me any questions.

...Alternatively i am open to using a barcode scanner attached to the device to scab for the same. 2.1. check the database for the name of the itemcode scanned and display the item name so it can be weighed 3. As the items of that item code are kept on the weighing scale the weight scale shows the weight we need to get the weight scale data from the weighing scale in real time. ( the weighing scale has a bluetooth transmitter which transmits the weight data) 4. After all the items are kept on the scale , once we click on a button we need to capture the final weight and Display another 1D barcode which uses a CONCAT function which will report the item name and the weight with a comma in between (Example item code - "2277744838" weight of that item is 223.5kgs then the...

I have an ESP32 chip with the code attached. The problem is that it works perfectly when pairing it the first time, but when I restart the chromecast v3 or it unpairs or it also happens that it unpairs the remote control from the chromecast having to factory reset it.

...has come to a stop, and are looking for an individual developer or a team of developers to pick up from where it is and continue developing the solution, which is a proof of concept. The developer must dedicate 8 hours/week to this project, for 3 months. If necessary, should be willing to dedicate up to 16 hours/week. The payment will be made monthly. Key technologies and frameworks: Android, Flutter, Firebase, Dart, VueJS, JavaScript The solution has 3 components: ## Mobile App ## Backoffice ## API # Mobile App Here, the user has the ability to add bluetooth devices such as thermometers, oximeters, blood pressure measuring devices, scales, but only those for which the system was developed (to this moment, only 4 have been added, one of each type mentioned above) . T...

Cerchiamo persona per lavoro full time in Italia. Lavoro occupazione: Full time Lavoro pagato al giorno, mediamente 22 giorni al mese. Tempo: Indeterminato Svolgimento: 95% in remoto e qualche volta intervento...italiana programmazione .Net framework, ambiente prevalentemente Microsoft, linguaggio C#, Visual Studio 20192022 conoscenza WPF (MVVM pattern), WCF metodologia AGILE, conoscenza DevOps e GIT buona conoscenza matematica avanzata capacità di lavorare in team Skills preferenziali: programmazione firmware (linguaggio C) per interfacciare piattaforme embedded conoscenza interfacce di basso livello (RS232, USB, Ethernet, etc..) capacità di gestire progetti multi-language (VB.net, C++, C) flessibilità nella gestione di più progetti Tag: .NET, C# ...

Hi I need a custom antenna Bluetooth (2.4 Ghz), I have a design. The antenna has connector IPX-V1 + Wire + PCB (with ceramic antenna) I have a design of the PCB, and I choose the ceramic antenna, I need to somebody can tunning with 50 Ohm and SWR < 2.0 I can send the compent, to do the job. Thanks. Ricardo

Il progetto prevede la realizzazione di un semplice software in java che faccia da middleware tra il macchinario cobas e411 e un database MySql. Il programma dovrà instaurare un canale di comunicazione con il macchinario e mettersi in attesa delle informazioni che arriveranno. Di base il cobas e411 manderà al software un cod...recuperare i codici degli esami da dover eseguire inviando il tutto al macchinario. Il software deve poter ricevere contemporaneamente più richieste e mettersi in attesa di più risposte dal macchinario. Infatti, una volta effettuato l’esame, il macchinario provvederà ad inviare l’esito al software che dovrà memorizzarlo nel database MySql. La comunicazione con il macchinario avviene tramite porta RS232 (por...

Il progetto prevede la realizzazione di un semplice software in java che faccia da middleware tra il macchinario cobas e411 e un database MySql. Il programma dovrà instaurare un canale di comunicazione con il macchinario e mettersi in attesa delle...recuperare i codici degli esami da dover eseguire inviando il tutto al macchinario. Il software deve poter ricevere contemporaneamente più richieste e mettersi in attesa di più risposte dal macchinario. Infatti, una volta effettuato l’esame, il macchinario provvederà ad inviare l’esito al software che dovrà memorizzarlo nel database MySql. La comunicazione con il macchinario avviene tramite porta RS232 (porta seriale). Il Software dovrà essere scritto in Java. In allegato inseriamo ...

Freelancers who can work dedicated on a project full time for designing and developing device Admin Policy to keep Bluetooth always in active state . Location Monitoring to keep the gps always on And so on You will be given a demo application to integrate device Admin Policy

Can you calculate a matching network for Bluetooth (2.4 GHz) and GNSS (1559-1610 MHz) using lgnion MXTEND DUO NNO3-320 antenna? PCB length and width (mm) - 60*15 mm.

I have a project that needs a continuous data acquisition, monitoring and storing solution to be build in LabView. It requires initially four simple RS232 and one RS485 driver to be written. There is some documentation available on the driver protocol but it may need work on figuring out the exact wiring and commands back and forth. I am using an industrial type RS232 to USB converter (FTDI chip) and two of the devices are able to talk to the computer. The other two I have not yet luck. This includes the RS485 and the issue maybe correct wiring as the instructions are skimpy (German). The devices are a motor, a temp controller, a Alicat mass flow meter and pH Electrodes. This is for a 6 bioreactor process control, monitoring and display application. In addition ideall...

Require Android developer to work on a project on a monthly basis . The Android application requires UI development And geofense with maps which will send alerts when the user walks in or out. The Android Application requires a foreground sticky service suitable to comply with Android 12 which can keep working by uploading data from the phone sensors and iot. The service must be able to survive user test like force airplane mode activation ,enable disable Bluetooth or other services

basic servo control (i.e. group actions) with ps2 controller and bluetooth android user interface. hardware is assembled, servos connected. powered with serial and bluetooth connections available.

...moving much for the past 2 minutes. This is to avoid transmission when the buoys are still inside water. The antenna should be ejected outside the water level after this 2 minutes. The mechanism for ejection will be designed (and billed) separately. But the command alone for ejection should be designed as part of this project. C. The transmission has to be encrypted and the passcode customisable - basically you have to be able to put a password in the transmitter either through bluetooth or wifi or simply punching in some buttons. D. The data should be sent over LoRa every 5 seconds or 10 seconds or 30 seconds or 1 minute (customisable).The entire system should be very light weight (not more than 60 to 70g without battery). E. The location thus received from the buoys shou...

Point to Point BLE 5.2 Audio TX/RX design using Nordic and Skyworks More details upon selection of candidate with past experience with such devices and this type of work

Hello, We designed our own RFID reader hardware and firmware. We are looking for software/application developer who can develop an application which can communicate to our reader via serial/RS232, TCP/IP, RS485 and Weigand. One Example of application basic functionality uploaded in attached folder. We can discuss in more detail with interested freelancer.

I have unity assset Bluetooth LE for iOS, tvOS and Android. And need help with it. I am looking who have experience with this asset, or have time to look at this. With script my respond is - "[]" You need to decode the bytes and turn them into useful data. Well that is just the default .net name for a byte array, so not sure yet if you have data. You will need to decide it now according to those instructions. Documentation is attached.

Hello, I need help with this Unity asset. Need read some services UUID and save it variable. Please contact who can do this job. Job is small, like 5min max. Please bid for 15 usd. Documentation is attached, please check. Regards.

We currently designed a fully functional EV charger in which now we have to implement OCPP 1.6j library. The PCB have an ESP32. We are currently developing a mobile APP to control the charger via OCPP. Bluetooth and WiFi for handshake. We will test OCPP compliance with Open Charge Alliance tool, infrastructure for wifi and bluetooth is re

We want to have an app that reads off data from two separate devices: a smartwatch (Xiaomi Mi Band 5) and a smartscale (for example the Xiaomi Mi Body Composition Smart Scale 2). An overview of this data, such as weight, should be given within the app. The data should be able to be imported directly to our app without the need of other apps, such as the standard apps of the Xiaomi products. Clients should be able to access their own data through their own account, and doctors should be able to see the data profiles of their clients.

Freelancer has to develop a 24x7 working application which can detect if a airtag or a Bluetooth beacon is following a user or not . The application will detect kbeacon and ibeacon and upload the beacon information to a central server and also notify the application user of potential threat following the user. A skeleton Application in Android will be provided so that the freelancer don't need to start from scratch . Payment terms Amount will be only paid if the feature has been demonstrated to us proving that the application is working 24x7 for a period of 7 days .

Creation of a simple application for controlling the LED strip via smartphone. This is a project in which it is primarily necessary to turn off/on the led strip, its level of brightness, timing the lighting and extinguishing of the strip with a percentage increase. Alternatively, different programs for a light show, or lighting/flashing according to music. For now, it is a 5V single-color led strip. A wifi or bluetooth module would be used as HW, which will be a component on the printed circuit board.

The following is a brief requirement of the hardware device to be built. It is required for outdoor application and therefore should be made to handle extreme weather conditions. a) The project is to design and develop an embedded system for a remote monitoring solution that can detect two digital signals, send two digital outputs and read from 4 different analogue inputs (between +5 V to -5 V), convert them to a digital equivalent using 12-bit ADC, and send it to a centralized monitoring station using LoRaWAN radio. b) This product will have to work on a battery and the battery life has to be planned for a min of a couple of years. The ideal device should have a provision to connect to an external solar power source and be able to charge the battery when excess power is availabl...

Firmware for ESP32 to scan GPS NMEA messages and stream only the selected types through Bluetooth. A custom web interface to configure the ESP32 parameters as well the to select NMEA message sentences.

Desarrollo de una App en .NET MAUI capaz de conecatar dispositivos wifi/bluetooth en la LAN del hogar

necessito de um aplicativo de relógio de xadrez compatível com comandos de botões físicos de um periférico, como um mouse conectado via cabo OTG ou bluetooth

A PC or android app that merge all your home audio BT device into a single Virtual BT adress so you can stream, lets say spotify, on multiple device at the same time.

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Read GPS NMEA phrases from ublox modules, a web interface for choosing the phrases that will be resent via bluetooth. ESP32 internal storage nodemcu or External SDcard. In the web hotspot it allows me to choose the sentences that will be resent. For example: For application X: GNGGA: I need Latitude and Longitude. GNRMC:HDOP, altitude. Show the checksum of how many hertz is working. Send buffer checksun. Be compatible with GN. constellations.

I need to review an existing app developed by me. I need to extend some functionalities and re-write and improving some parts. The app connect to a 2 bluetooth devices e reads parameters continuously. Please don't ask specifications or documents : don't exist. The app is quite simple if you are a good Android developer. Please don't contact me teams or companies. Only single developers.

I find myself in need of a device that can communicate with a two-way radio that has rs232 input/output for control and display of operating frequency @ 9600 baud, 8 bits, 1 stop and no parity. Simple (16 x 2) display, switches for frequency set. I need someone to design the hardware and program the RPi. I figure a raspberry Pi plus a display and rs232 interface will do it, I just don't have time to learn enough RPi to do the design myself. But I do have time to assemble and test the hardware/software. What I need is an interface to control a communication radio from a remote location. The radio is mounted in the front seat of my airplane and the control will be mounted in the back seat. I need to be able to select a frequency from the remote location and then ...

Hello, I'm looking for a freelancer that will assist us with setting up nessecary drivers and software implementations to both a Raspberr...would be using available resources to us by CCS (Code Composer Studio, by Texas Instruments) for enabling BLE on the chip and all the nessecary functions for its connection to the Raspberry Pi program. Part two is the program for raspberry pi itself, a small simple GUI that would be later integrated into a software we have developed. The task of the GUI/software would be to connect to the Bluetooth MCU when the MCU is advertising. Then allows for readout of services that the MCU has been programed for, as well as OTA (there's a driver for that in CCS but needs to be developed on the raspberry pi side) also editing of certain vari...

We are looking for a system to locate mobile phones in a specific geographical area and broadcast advertising to these phones. This project is urgent - so there is no time to develop or install apps. You can use geofencing, RFID, wifi - or any other proximity locator technology to detect the approaching cell device and create a server to push them a notification Beacon transmitters are also a possibility ( preferably without Bluetooth )

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... In order for me to consider your application, please write an original introduction of 2 or 3 sentences, the article topic: "Best Apple Airpods Alternatives, Wireless Earbuds for Sports and Running" !!! Looking to hire an on-going writer for one article per week. Ideally, someone familiar / expert with consumer technology products: Headphones | Audio equipment TVs | Computer monitors Bluetooth speakers | Smart home devices !!! In order for me to consider your application, please write an original introduction of 2 or 3 sentences, the article topic: "Best Apple Airpods Alternatives, Wireless Earbuds for Sports and Running" !!! The writing task will be to research a 'Best Product for X under Price $$' topic and write a list style article....

Hello, Looking to hire an on-going writer for one article per week. Ideally, someone familiar / expert with consumer technology products: Headphones | Audio equipment TVs | Computer monitors Bluetooth speakers | Smart home devices !!! In order for me to consider your application, please write an original introduction of 2 or 3 sentences, the article topic: "Best Apple Airpods Alternatives, Wireless Earbuds for Sports and Running" !!! The writing task will be to research a 'Best Product for X under Price $$' topic and write a list style article. It should have an: 1. Intro 2. How we selected / what you can expect 3. Product choices (list) with justifications for selection, pros 4. buyers guide / FAQ The idea is to write in an easy to read, conversatio...

Hello, Looking to hire an on-going writer for one article per week. Ideally, someone familiar / expert with consumer technology products: Headphones | Audio equipment TVs | Computer monitors Bluetooth speakers | Smart home devices The writing task will be to research a 'Best Product for X under Price $$' topic and write a list style article. It should have an: 1. Intro 2. How we selected / what you can expect 3. Product choices (list) with justifications for selection, pros 4. buyers guide / FAQ The idea is to write in an easy to read, conversational style, short sentences. 1st person, able to simulate talking about experiences and results. You'd be ideal for this job if you can: 1. explain the technical topics in simple to understand language. 2. researc...

...location spaces (Home, family space, Hotel, resort, public area), the attendees are classified in three groups according to social ties (Strong, weak and no tie at all). Each attendee activities his mobile Bluetooth/WiFi and use OMSN to communicate given its advantage in these such context. You want to build a private communication btw two nodes without being discovered and tracked, and the two ends of communication supposed being preserving privacy. Simulation parameters: Simulation name, duration, number of nodes, range and location, routing protocol, mobility model, technology used (Bluetooth/WI-Fi for example), privacy level, privacy level, and attack models(either insider/outsider). Simulation Steps: 1- At first, simulate a simple and basic scenario between group o...

We need a signed driver which would create a Virtual Serial/COM Port (VCOM, example - FTDI) in Windows based on 3 Bluetooth services - RX, TX, Control. Services are opened by an external Bluetooth devices. Windows Driver Kit (WDK) or similar skills will be required.

The app needs to run on XiaoMi Watch, autostart, auto connect known wifi, search for iBeacon signals and post to server API.

Looking for developer to help us build Bluetooth plugin for Arduino RN4678 for multiple Windows, Mac OS, Android & iOS. The bluetooth plugin should have a way to send & receive data to & from the bluetooth device and should be able to work for Bluetooth LE. Knowledge of Android Native is necessary and experience developing plugins for Android is good to have. Thanks for reading and looking forward working with the best candidate for the job.