Bluetooth yazlm trabalhos

With the NRF connect software, we want to perform a long range bluetooth test with 2 nrf52840 dongles. For this we need to implement a software that enables the long range functionality. The goal of the project is to provide a software that allows to activate the Bluetooth long range (PHY codec). Also implement the fact that if the dongle is connected then the led of it is green (or available). Provide the BIN + source code. Help if problem of implementation with software. Apply only if you have a nrf52840 dongle and you have the knowledge of long range Bluetooth

Extend an existing charge controller for charging Electric Vehicles with Wifi and communication with an OCPP Backend. I want to make an existing semi smart charge controller capable of configuring trough wifi and able to communicate with an ocpp Backoffice. I want to remove the screen and configuration only trough wifi. Capabilities today are: - Smart charging capable, reduces charging current when demand elsewhere increases. - The load balancing feature allows you connect up to 4 controllers to one mains supply. - Switched 230Vac output, for contactor/relay. - Can be used with fixed cable, or socket and charging cable. - Automatically selects current capacity of the connected cable (13/16/32/63A) - Locking actuator support, locks the charging cable in the socket, automatically unlocks ...

I have a load cell which I am reading data from it with Arduino, I have a bluetooth module which I want to read my-data from Arduino and show that number in an app in iPhone. therefore , i need a code in swift which shows the data from load cell in iPhone. I have written the code to find the Bluetooth module in swift already.

Tenemos una aplicación con arquitectura API y queremos hacer una APP Movil para Android para Crear Facturas POS, imprimir el Ticket una Impresora Bluetooth, Crear Cliente

We need help with: Scan for the correct BLE device and connect to the hardware Authorize app to hardware (token) Send a command to hardware Receiving answer from hardware We have documentation from hardware supplier and apps (xamarin) ready for connection.

1. support iOS/Android 2. support NFC and Bluetooth 3. Virtual Employee Card 4. using HCE(Host Card-emulation) mode or New technology 5. must authenticate id/password via REST API on Server and create new employee card.

We have a reservation app for vehicles. We now want to connect the app to the vehicles with a Bluetooth connection. We do however have some problems with connecting to the BLE device and reading the services. We would like some help from a developer with experience of bluetooth connections.

We need an engineer to look at the PCB files and amend to extend the battery life of the product. We to add a sleep mode so when product is not in use the minimum amount of power is used just to monitor a pressure sensor. when pressure sensor is pushed the product should turn on to active mode. the target battery life shou...is not in use the minimum amount of power is used just to monitor a pressure sensor. when pressure sensor is pushed the product should turn on to active mode. the target battery life should be: Sleep mode - approx 10,000hrs+ Active mode - 300hours+ last job is to amend the SSID and add the last 4 digits of the MAC address in the firmware. The product will connect to our existing app via bluetooth. All existing firmware files and PCB files will be provided...

Hi We have a new APP built in APP Presser using a HTML5 Audio pla...HTML5 Audio player. Need to pull the metadata images and track names from the stream Its on Centova Cast when the app is playing, the track Images are showing on the feed But when we run it on an player APP then the images will show. But when you are playing the music to a player via bluetooth (devices like in Car radio bluetooth player) the meta data doesn't show on bluetooth car radio player, etc not images or Station logo image. this is the browser player We have the APP player made in APPPRESSER.COM. If you have experience in building players or Radio Station App Players we want to hear from you. Thanks Bob

when i connect device using BLE with my device and disconnect it and connect with another device, its hows loading connection not stop unless i close the application first and reconnect back..need to add some strong and weak signal before allow use to connect device

Required a programmer to code raspberry pi controller board to communicate with bluetooth printer to print data sheet

I have a device with this name in my pairing list I want to know what type of system is it gbk_h6125_89b9 I can not figure why this device is showing up type I am ready if you are able to do the job at the top of your message

...from the Android app. And can be controlled from admin panel web hosting. Requirement 1. The app will work both online and offline. 2. This will be a simple POS app. 3. There will be separate admin panels in 4 roles. Namely: Role can be created and managed from Super Admin, Admin, Milk Buyer, Milk Seller and Super Admin. 4. With the purchase of milk, the seller will print the invoice of the Bluetooth POS printer. Must have this system. 5. If any buyer wants, he can buy the rest of the milk. 6. If you want to sell, the buyer can take the advance money from it. There must be such options. 7. Take a look at all the information that the buyer will input at the time of purchase Customer Name: (Customer can be selected here and added to new customer database) litter: (How much milk sh...

I want to produce a bar which will be - say 50 - leds, to be run by arduino. The lights will basically go from one end to the other, in sequence, then return, then go back, and so on. Separate to the bar, operated by bluetooth from a mobile, the following: Start Stop Count of repeats, zeroised at start Colours of leds Red, Yellow, Blue, Green Violet Intensity (strength) of coulour Increase speed Decrease speed Wiring diagram Also the option, (please price separately) for the item to have an audio output (to earphones) beeping at each end

Hi Tehsin Ud D., I noticed your profile and would like to offer you my project. We can discuss any details over chat. I am looking to build a tempo tool for school kids. I am very open to suggestions however at the current time for a quick POC I am thinking this. hardware ardrino nano with accelerometer and bluetooth. android smartphone App on smart phone will show a bar chart upon initial movement of nano. reset button on android app to restart ability to set ratio on app IE when nano / accelerometer move 1 in graph moves .1 inch. Sincerely, Robert Lierman

Below are the deliverables we need: 1. Components Selec...the deliverables we need: 1. Components Selection (Eg. Select the microcontroller, Bluetooth module, pressure sensor, etc) (We will pay you separately for the components you need for developing this project) 2. Design the Circuit 3. Code for Blood Pressure (systolic/diastolic/pulse rate) detection from the pressure sensor 4. Setup instructions for testing on our end 5. PCB Design for optimal costing List of Known Components Involved: 1. 6 Volts DC Air Pump 2. Air Tube 3. Three Way Air Plug (One connected to the Air Pump, One to the Pressure Sensor and One to the Electric Solenoid Valve) 4. Pressure Sensor 5. DC 2-position 3-way Small Mini Electric Solenoid Valve for Air 6. Blood Pressure Cuff 7. Bluetooth Module 8...

Need to communicate to Bluetooth BLE . Read configuration of hardware and Write to hardware using BLE. App will have power on and off. Control of 7 devices which will all be the same with different names.

Need an apple map that communicated to a provided Bluetooth BLE. The app will read setting of hardware and write to hardware through BLE. The controls consist of main power and 7 devices to control. More info can be provided

I require a App simular to Tagmax. I have a RFID stick reader which is Bluetooth. Once I scan the microchip or RFID ear tag, it will transmit the the serial number to the App into the field called EID (Electronic ID). Below this field, I must be able to add the Ear Tag number of the animal and add several fields below this for example, Weight, Health, etc. Have a look at Tagmax App and you will see what I require. The information must be saved and be able to export to a spreedsheet.

We are having some threading issues with our Xamarin iOS application and need expert guidance on how to resolve issues with it. The application communicates with an industrial device via Bluetooth and fills the UI with pertinent information. The BT sensor is constantly being polled for new information which eventually makes its way to the view. We believe there is some cross-threading happening but have not been able to fully resolve it with intermittent behavior. This project will involve the consultant reviewing the code and architecture of the program with our in-house developer and coordinating the best way to solve it. The ideal candidate will have built many multi-threaded applications in Xamarin targeting iOS.

Application will have to be launched in the foreground, require a login, so that the user can access the other applications. This access record must be sent to an API, already ready. ! The App must also block the use of bluetooth

I need a simple app that send ...using and it must support iOS and Android. Please see attachment for a sample diagram showing the app functionality. This app. is simple and they are plenty of examples online, including NuGet packages for the BLE using Here are a few reference documentations: BLE Plugin - Tutorial using BLE using UART - Please review attachment and references before bidding. I will ignore bids without reviewing the project description. My microcontroller sends "1 , 3 , 3" data for a period of time, and I need an app to receive the data and display it in a series of textbox or labels.

...banco de dados e voltar na tela inicial. Utilizo uma POS/PDA Android com impressora térmica bluetooth embutida, o banco de dados será feito confirme solicitação do desenvolvedor e de preferência MySql. Os dados no banco de dados serão inseridos manualmente. _________________ I need a mobile system with 6 screens compatible with android, to print vouchers/tickets using the thermal printer available at the POS/PDA. The system will have four buttons on the home screen, each of which will go to the corresponding database, get a voucher/ticket, show it on the screen, print (if applicable) and delete the item from the database and return on the home screen. I use an Android POS/PDA with built-in bluetooth thermal printer, the database wi...

We need an Android Native Apps Developer to code a mobile payment app running over Bluetooth instead of WiFi. We have a Bluetooth developer. However, any Bluetooth BLE experience would be great.

I need Android BLE experiebce developer to fix connectivity - Trouble connecting - trouble transferring data - signal strength too weak

We need a resource in Hyderabad, Telangana Expert in STM32 microcontroller operations in micro level power consumption based projects including FreeRTOS, MQTT Protocol and nRF9160 expertise. Our project is a smart watch that collects data via sensors, processes using various algorithms, stores data in external flash and processed data need to be transmitted via bluetooth or MQTT(LTE-M) to cloud using MQTT Protocol.

Overview: Need a Xamarin Forms app that will create a 2" printable label with a 128 barcode label. It needs to print to a Brother bluetooth printer and/or a Zebra bluetooth printer Xamarin Forms app must work in both iOS and Android. You will be providing the code so that we can incorporate the functionality into our overall app. Details: The user will be able to type in a value into a text box. Whatever is typed will print onto a portable 2" bluetooth printer (a Zebra or Brother, we use both) as both a 128 barcode font and the actual typed readable text.

I currently have some code that uses the Flutter Blue package. While it works in some cases, there are many cases where it causes complications. I want to change the package used by the code.

Need to make a very simple app for remote control certain aspects of another phone via Bluetooth and Internet. Core things which will be needed to figure out - Background app refresh - Bluetooth connection - How to keep the app alive even with elongated periods of being in the background - How to make sure the controls work even if another app is in the foreground and active - Needs to be a simple and very little memory usage so that the device does not shut it down for want for memory - will he likely 4-5 screens only - Need one app for Google play store and one for apple - ideally a single app - Need to make sure that the iOS can control the android controls and vice versa as well - Will need a bit of design work as well - but the app is so simple that it should not be t...

Need to develop an app based on Bluetooth, NFC purely IOT app on ios and android both.

We need jar with specific functionalities for connection to bluetooth card reader -discovering devices -paring -keepeing connection permanent -sending commands -receiving responses from card reader

It's sime serial communication debug app with some specific funcations.

Hi, We require electronic and product design assistance for a controller to wirelessly remote control blinds from a rs485. Using 433mhz and a rolling security code. It should be powered by a 220/240v mains power supply. I would also like to investigate Bluetooth remote control. Many TahanksWe can discuss any details over chat.

Please see the attached document. I am building a scoreboard app that can keep track of the score for 2 teams using a bluetooth remote control. I can also send the remote to you after we start the project.

I should create an app for the Bluetooth module. But I need help to get connected to the HM-10 because I have no source code for any Serial-COM terminal app. Can you create a sample App to get the Hello World like done in this page: I prefer Ionic Cordova framework. But can be a working solution for Android for first test too. Thank you

Your project is to design a front badge for our bluetooth speakers looking like a vintage guitar amp. The name on the badge is "Zendling". We plan to have the badge manufactured in metal and with enamel inlays, so it could be a combination of metal and colour, maybe even more than one colour. However, the speakers may vary in their appearance, there will be "goldish" (like the red and beige one) and "silverish" (like the blue and beige one) variations, and there will be dark themes where the parts (e.g. the strings that separate the colours) will be either dark steel or even black. One single Zendling badge should - if possible - fit all these different themes. Don't get confused with the fact that the pictures are showing all silver (and not go...

My requirement is to make a remote firing device that uses LoRa and has end to end encryption. I am aiming at a device like LORIS of Chemring group, but at a much cheaper cost and using SX1262 Lora module at SF12 and with mesh networking of receivers. The Transmitter and receiver should have Bluetooth for connection to Mobile phone for setting up. Before Bidding/ quoting, please read about Remote Firing Device and the following and make sure you have knowledge of the Requirements/ technologies: 1. LoRa Layer 2 Protocol/ any other mesh networking protocol for LoRa 2. AES 256 Bit Encryption 3. Programming of LoRa Only knowledgeable persons to bid

Flutter Receipt Printing Using Bluetooth , USB , Wifi

Bluetooth application that will read and write data to a Bluetooth device using GATT profile.

Hi, I am hoping to find an audio circuit design engineer to create an app controlled module to shape sound connected to RCA/phono outputs for consumers with reduced frequencies hearing. Target market: elderly and disabled of all ages. Bluetooth/Wifi in/out as well as wired capability. Opportunity for a stake in the project possible if requested.

I am very happy to know you through Freelancer.ec. I am currently looking for an engineer to do the NRF Bluetooth Walkie Talkie Project. If you are interested, please bid on my project or contact me.

We have a hardware solution connected to Android tablet via USB. We would like to make this device connected without USB using iOT / ESP chip. We are looking for an expert embedded developer. please write IoT in the beginning of your cover letter

We have a web POS applicati... Units, Categories, Brand, Warranty) - Purchases Tab & Contents - Sell Tab (POS, List POS, Add Drafts, List Drafts, Add Quotation, List Quotations) - Expenses Tab & Contents - Reports (Profit & Loss, Product Sell Report, Register Report, Expense Report, Stock Report, Trending Reports) - Receipt Printers (We will provide 2 SDKs for 2 thermal printers) & add option to add a printer via Bluetooth - Add Bluetooth Printing - A link to Back Office at the bottom of the drawer menu - Toast reminder when internet is lost "You're currently working offline" user clicks ok to proceed. And can choose to either continue working offline or reconnect to the internet. Note* API has been provided from the web admin Please deliver ...

conduct a wireless or mobile security tool demo Demo requirements: - Set up and demo a wireless or mobile device security tool - Demo the WiFi Pineapple - Demo a Bluetooth exploitation - Build an Android pen testing platform (recommend using a spare phone if you choose this option) - Mobile malware Demo using Kali Linux and a throw away mobile device - Other as approved by the instructor Accompany your Demo with an essay: - Team essay will need to describe the steps you took to build it, including time spent. Documentation is very important and in the event that you can’t get it working I can still evaluate the level of effort - You will need to capture a video/screencast of the tool working, with a description of what is happening. - The essay will also need to des...

...Además de la placa de circuito impreso principal, existe el circuito de un pequeño emisor de radiofrecuencia (como una alarma de garaje o de casa). Actualmente dispongo de Esquematicos, Gerbers y Bom de las Placas, el trabajo seria para el Firmaware. FIRMWARE La comunicacion principal va a ser via internet mediante un servidor bidireccional (Mqtt) La comunicación local con el PCB a a ser vía Bluetooth para armar y desarmar el dispositivo mecánico (cerradura) y RF para los periféricos. Etc). Los periféricos están cableados y también puede haber periféricos RF. Actualmente se está desarrollando una aplicación móvil (APP) por parte de un profesional de las telecomunicaciones, por lo que se ...

Hi Hong Thiet N., I noticed your profile and would like to offer you my project. We can discuss any details over chat.

I want to develop walkie talkie between NRF52(or ESP32) Module and mobile app(Android).

The experienced Embedded Engineer is required to assist with the development of a portion of the product for the automotive industry. Details will be shared over the zoom call. The project may take time from a few weeks to a few months. Also, if collaboration if successful, more work can be provided. Experience required: Bluetooth Low Energy. BLE = 5.0 (5.1 ideally). Experience with Nordic MCUs (critical), ideally with nrf528323 and nrf52840. Experience with BLE devices on Central and Peripheral configuration. Feel free to reach out to ask questions.

The ultimate goal of this project is to develop a mobile application under iOS and Android that can interact with a bluetooth (Android and IOS) or USB (Android only) smartcard reader (ISO7861 compliant). The project will be executed in different phases. Phase 1: basic setup of the app (no interaction with a real SmartCardreader, only a mock of the reader) Phase 2: connectivity between the app and a BLE SmartCard reader on Android Phase 3: connectivity between the app and a BLE SmartCard reader on iOS Phase 4: connectivity between the app and a USB SmartCard reader on Android Note that the BLE device currently used is the ACSR3901SU. The details for phase 1 are described in attachment. For phase 1, we do not require that you have an experience with SmartCard reader...

Need to build a sensor that using two points could measure the variation of a small current flow (mili Amps) going through a material when affected by heat or pressure. Data must be send through a Bluetooth interface.. The device must accept some basic configuration and offer a simple protocol communication with the linked application through the Bluetooth interface. Even when the drawing shows a finished product layout, the prototyping could be done on any type of board.