Freelancer modbus protocol gsm jobs

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    9,123 freelancer modbus protocol gsm jobs found, pricing in USD

    A freelancer has to build a program based on PIC, that automatically manages the data flow direction of the RS-485 serial port from RS-232, taking into account the baud rate and the number of bits, without any special configuration or software command, i.e, totally transparent to the MCU. It must be 100% compatible with Modbus! Freelancer has to deliver:

    $26 (Avg Bid)
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    3 bids
    MAC protocol 6 days left

    Aloha MAC protocol for RFID sensor in wireless network using ns2

    $147 (Avg Bid)
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    6 bids
    MAC protocol 5 days left

    MAC protocol using NS2 for wireless network

    $10 - $30
    $10 - $30
    0 bids

    A freelancer has to build a proprietary algorithm based on microcontroller, that automatically manages the data flow direction of the RS-485 serial port, taking into account the baud rate and the number of bits, without any special configuration or software command, i.e, totally transparent to the MCU. It must be 100% compatible with Modbus! Freelancer

    $284 (Avg Bid)
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    13 bids

    Looking for a Linux sysadmin who have experience with serial port settings, serial communication. I want to use Neoway M590E GSM/GPRS modem with USB-UART serial converter, looks like everything okay, but I can't communicate with the modem over terminal. I already tested the communication with the modem under Windows, everything fine, working. You need

    $20 (Avg Bid)
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    4 bids

    I want to use raspi as gsm gateway. This is the basic task. Details will be explained.

    $538 (Avg Bid)
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    7 bids

    It is a module that have to comand a relay to switch on/off 220Vac (80A) by GSM.-

    $2030 (Avg Bid)
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    34 bids

    Mobile GSM servis, specialized in apple products

    $29 (Avg Bid)
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    38 bids
    Bancor Protocol 2 days left
    VERIFIED

    Anyone familiar with the protocol please get in touch

    $10 - $30
    $10 - $30
    0 bids

    ...converter to a PC, you get one extra high-speed RS-232/422/485 ports. It must have the auto-tune baud rate and data format to the RS-485 network (totally compatible with Modbus). The power converter derives from the USB port and doesn’t need any power adapter. It also features a high-speed 921 Kb/s transmission rate support to various O.S. independent

    $52 (Avg Bid)
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    3 bids

    I need to read the serial communications from a GPS NEO 6M card on a Arduino GSM 1400. GSM 1400 cannot use SoftwareSerial so you would need another method. Project will be an .ino Arduino file.

    $143 (Avg Bid)
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    7 bids

    A mobile ad-hoc network (MANET) is a kind of wireless networks which is infrastructure less and adaptive in nature. Vampire attacks is the type of resource depletion attacks in which a malicious node create and send the message with node. Vampire attacks choose the longest path and loss the battery power. We can reduce the vampire attacks with the help of clustering technique. Clustering is the pr...

    $377 (Avg Bid)
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    1 bids

    I want to read device data using modbus (RS485) communication through raspberry pi.

    $361 (Avg Bid)
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    21 bids

    The project requires a socket to be established to communicate with an RTU communicating with MODBUS. The system should be able to send and receive data and process the data according to some rules.

    $112 (Avg Bid)
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    11 bids

    I want someone to wrote me a detailed Paper explaining LORAWAN, SIGFOX and NBIOT and the role they play in current IOT market. Differences between GSM and GPS trackers also must be included in this.

    $29 (Avg Bid)
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    12 bids

    ...process the stream from device to a printer. They use epson Esc version 1 protocol. So a library can receive a partial or full steam in bytes The library should create a bitmap size A4 with 300 dpi with possible por scaling image. Can be a library or a class. The protocol are described in this link : [login to view URL]

    $1015 (Avg Bid)
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    13 bids

    I have installed Dinstar GSM gateway, but I have voice quality problem. Who can solve it, please contact with me

    $34 (Avg Bid)
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    10 bids

    ...developed a remote control for iPod/iPhone in the past. It made use of the serial connections on the 30-pin dock connector and iAP protocol to control music. I would like to port to the lightning connector or bluetooth and iAP2 protocol. Is it possible to establish a serial connection with the iDevice without enrolling to the MFi program? I would prefer the

    $166 (Avg Bid)
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    1 bids

    Looking for an arduino expert,who can design a wearable wrist smart band with multiple features , features are 2.5 inches screen , gsm anteena, temperature sensor, multiple microcontroller and sensors will work simultaneously. then create API of the product that will be interact with smartphone application and web services Also required design

    $110 (Avg Bid)
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    3 bids

    I want to interface SIM800/SIM900 or Telit GL865 to LPC2148. There is one 125kHz RFID connected to LPC2148 also. I want to upload RFID Card ID to a webserver using GSM/GPRS module. I need a FreeRTOS application for this task, which can scan RFID and upload card ID simultaneously. Card wil be scanned very fast like 70-80 cards per minute.

    $303 (Avg Bid)
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    11 bids

    1. I am planning to design a gps tracker pcb which has gps and gsm modem with a stm32 micro. I have some work already done in orcad 16.5. Can you complete that project? 2. which country/ timezone you operate from? 3. are you alone or work in teams?? 4. do you design hardware based on requirement? 5. Will you be able to support in antenna design and

    $15 / hr (Avg Bid)
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    1 bids

    1. I am planning to design a gps tracker pcb which has gps and gsm modem with a stm32 micro. I have some work already done in orcad 16.5. Can you complete that project? 2. which country/ timezone you operate from? 3. are you alone or work in teams?? 4. do you design hardware based on requirement? 5. Will you be able to support in antenna design and

    $14 / hr (Avg Bid)
    $14 / hr Avg Bid
    1 bids

    1. I am planning to design a gps tracker pcb which has gps and gsm modem with a stm32 micro. I have some work already done in orcad 16.5. Can you complete that project? 2. which country/ timezone you operate from? 3. are you alone or work in teams?? 4. do you design hardware based on requirement? 5. Will you be able to support in antenna design and

    $14 / hr (Avg Bid)
    $14 / hr Avg Bid
    1 bids

    1. I am planning to design a gps tracker pcb which has gps and gsm modem with a stm32 micro. I have some work already done in orcad 16.5. Can you complete that project? 2. which country/ timezone you operate from? 3. are you alone or work in teams?? 4. do you design hardware based on requirement? 5. Will you be able to support in antenna design and

    $14 / hr (Avg Bid)
    $14 / hr Avg Bid
    1 bids

    we are looking for en expert to develop a app that will act as sip gsm gateway i am including here a [login to view URL] to a software that was develop for window [login to view URL] 2, the actual software for window s i will drop it to you once we hire you 3. a suggestion

    $462 (Avg Bid)
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    3 bids

    We have landline free hand phone with internal sos alarm button working with contact id protocol and looking for design of gsm modul to convert the landline to gsm communication

    $2467 (Avg Bid)
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    17 bids

    We are looking to skillful guys to Configure 3 SPA3000 devices & 1 GSM gateway with xCALLY contact cloud center (Asterisk base call center system). The job will be mainly sitting the devices to be connected with xCALLY systems using the sitting parameter of xCALLY GUI. * the xCALLY is hosted in VPS @ germany. * The VPS @ germany is connected to NordVPN

    $194 (Avg Bid)
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    2 bids

    i want to setup an gsm voip gateway GUI using asterisk+a2b+chan dongle, use huawei e173u-1 and e153u-1. i already have a running server, but i want to setup a new server with the following features in a GUI: 1-sim card suspension detection based consecutive unsuccessful number of calls and discard(dongle stop now) the suspended ones as well as not

    $719 (Avg Bid)
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    6 bids

    1. Dont worry about the offer price, quote yours. 2. how much you would charge for a gps tracker pcb with stm32 and sim808 module. couple of analogs, 4 di...2. how much you would charge for a gps tracker pcb with stm32 and sim808 module. couple of analogs, 4 digital ins, 1 CAN, and 1 rs232, 12v to 4v dcdc converter and on Board gsm antenna? Read Less

    $8 (Avg Bid)
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    1 bids

    1. Dont worry about the offer price, quote yours. 2. how much you would charge for a gps tracker pcb with stm32 and sim808 module. couple of analogs, 4 di...2. how much you would charge for a gps tracker pcb with stm32 and sim808 module. couple of analogs, 4 digital ins, 1 CAN, and 1 rs232, 12v to 4v dcdc converter and on Board gsm antenna? Read Less

    $9 / hr (Avg Bid)
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    1 bids

    I want somewone to configure kannel to be able to send sms and to be able to bill custommers based on dlr. we use gsm pool with quectel M35

    $211 (Avg Bid)
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    4 bids

    ...process the stream from device to a printer. They use epson Esc version 1 protocol. So a library can receive a partial or full steam in bytes The library should create a bitmap size A4 with 300 dpi with possible por scaling image. Can be a library or a class. The protocol are described in this link : [login to view URL]

    $35 - $288
    $35 - $288
    0 bids

    We have a raspberry pi that plays a video loop that we want to tie into some control boards. We still need to develop the control boards, but would like to use RS485 to keep the connectivity simple. We will provide all the information regarding the functionality, so you can write the code to make it all function. The code will eventually be embedded into a bigger project on the same raspberry ...

    $1398 (Avg Bid)
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    37 bids

    We have an arduino with a GSM Shield SIM900, which already sends SMS to a certain number which is specified in the program. We need to somehow send that SMS to a web server by using the SIM's 3G capability, and then process the data in order for it to be displayed graphically and be accesed by users with passwords.

    $246 (Avg Bid)
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    7 bids

    I need my gateway to be set up so that I can receive international voip traffic and forwarded using the simcards on the gateway. You set the route and Asterisk server on VPS. This should take just few minutes

    $38 (Avg Bid)
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    3 bids

    using gps protocol save all gps related data like fuel, speed, ignition off etc., to mysql database

    $152 (Avg Bid)
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    4 bids

    We are looking for a web based real time vehicle tracking software system to be used with generic and popular GPS/GSM/GPRS based tracking devices. We intend to have a GPS tracking/fleet management software for our vehicles. If you already have done much of the software is very helpful with the times. Application Requirements: (PHP, MySQL Server)

    $3030 (Avg Bid)
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    56 bids

    ...or tablet Preferred SW: android studio Communication device: Bluetooth wireless Communication protocol: MODBUS RTU Master, 9600,N,1 no parity We need to make a Bluetooth wireless communication application to communicate with its wireless connected MODBUS RTU SLAVE device (an electronic instrument). Few group of values called as Recipe should be available

    $216 (Avg Bid)
    $216 Avg Bid
    8 bids

    Datalink International is seeking a skilled Android and iOS Application developer. Must have 5 + years of proven development skills. All Apps developed will link over GSM Cellular networks to existing GPS and SMS Host Software. Must be familiar with SIP and serial data connections

    $22 / hr (Avg Bid)
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    29 bids

    He...) Via the GSM ( the SIM card which is installed in the phone ) In more details Now we have a mobile device and Asterisk server, I want to link the mobile to the server and this server will send the call (SIP) and the mobile will make this call via the SIM installed In a way or another this APP will make the mobile work as a VoIP to GSM gateway

    $215 (Avg Bid)
    $215 Avg Bid
    6 bids

    We need to make a communication device to communi...connected slave device though its UART2 whenever required. Another screen should Read the values of the slave device and show in to the TFT display. We have a similar program with MODBUS RTU SLAVE, for the same HW. If winning coder required , we can supply. Delivery of full source code is required.

    $207 (Avg Bid)
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    3 bids

    Hi, We are looking for Firmware developer for IOT product developer. Expertise with GSM/GPRS, WIFI, BLE/BT, GPS/GLNSS, HALL SENSORS, ACCELEROMETER/GRYOSCOPE and its use for GPS correction, Motion detection, Power management planning

    $1640 (Avg Bid)
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    15 bids

    ...machine selection and successful dispensing information (additional payment information will be good but not absolutely required), and upload them via GSM shield to a URL. Detailed schematics with arduino, GSM shield (or similar), hardware interface with vending machine (including drawing power from vending machine), and all other required associated components

    $325 (Avg Bid)
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    3 bids

    1. Dont worry about the offer price, quote yours. 2. how much you would charge for a gps tracker pcb with stm32 and sim808 module. couple of analogs, 4 digital ins,...2. how much you would charge for a gps tracker pcb with stm32 and sim808 module. couple of analogs, 4 digital ins, 1 CAN, and 1 rs232, 12v to 4v dcdc converter and on Board gsm antenna?

    $81 (Avg Bid)
    $81 Avg Bid
    1 bids

    Specific requir...with a hierarchical login/permission control function. 8. Secondary development interface and protocol should be brought, which can be integrated into the superior system. 9. Collect the data of the lower device and communicate with the lower data through modbus-tcp.12 lower devices, total number of 20,000-30,000, simple data format.

    SQL
    $16156 (Avg Bid)
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    20 bids

    Need to develop Random Calling App which allow user to connect with Random user - it will be app to app calling app

    $421 (Avg Bid)
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    9 bids

    ...is a computer and a GSM transmitter-receiver. The communication between the smartphone and the house is made via this GSM which sends and receives SMS. The computer questions peripherals, and sends back the desired data. The smartphone read SMS and shows datas. If there is an alert in the house, the computer send an SMS via the GSM. The application make

    $669 (Avg Bid)
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    42 bids

    The following system should use the TCP protocol and be coded in java. Need a chat system, with a chat client that can connect to a chat server. Client should at the start ask the user his/her chat-name(username) and then send a join message to the server. The server should accept clients to join the chat system. When a client joins, the server should

    $155 (Avg Bid)
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    17 bids