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Embedded software for wireless temperature sensor

$250-750 USD

Closed
Posted over 7 years ago

$250-750 USD

Paid on delivery
I am building a small sensor node and a Wifi receiver base module. The sensor node has 2 temperature sensors (DS18B20 1 wire) and a water leakage detector (ON / OFF pin). Both circuits use a PIC16F1513. The temperature data is sent wirelessly from the sensor node to the base module. The base module will send the data to our distant server using TCP/IP using a Wifi connection. The node transmitter circuit that is running on batteries has these blocks: - PIC16F1513 Microcontroller - Wireless Transmitter module RFM95W 868 MHz (using SPI communication) - 2 x Temperature ds18b20 sensors (using 1-wire communication) - Battery level monitoring - Water leakage detector : ON / OFF PIC pin detection - 1 x LED and 1 button The base receiver circuit that is running on electricity has these blocks: - PIC16F1513 Microcontroller - Wireless Receiver module RFM95W 868 MHz (using SPI communication) - 1 x LED and 1 button - ESP12-E module (ESP8266 Wifi Module) (using uart and SPI communication) We will send you a first version of the 2 embedded softwares and a list of remarks to follow in order to optimize the energy consumption of the node circuit. In these examples you will have a first version of the transmitter and the receiver wireless modules functioning and how to check the ds18b20 temperature values. You will also find the different documented functions and logic. We need to also have the following function on the ESP12-E (ESP8266) wifi module : - Modify the wifi network ID and password in order for the ESP12-E to connect to a new wifi network The embedded software must be written for MikroC for PIC from MikroElektronika and must be well documented. To summarize, I need : - The node embedded software - The base embedded software - Test the system with the node sending temperature values and the base module receiving data and sending them back to our distant server using the ESP12-E wifi module. We will give you the testing plan and scenarios Other developments will follow-up later on. We will send you a node and a base module with all the necessary parts (ds18b20 temperature sensors …).
Project ID: 12254220

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30 proposals
Remote project
Active 7 yrs ago

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30 freelancers are bidding on average $629 USD for this job
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Hi sir, We are best in integrating sensors into system. We offer you our services at very low and affordable rates. please discuss with us in PM mode. We are team of expert engineers and developers who are sound experienced in embedded systems (arduino + other microcontrollers), programming, circuit designs, electronics, product designs, pcb layouts, database management, MySQL etc. We offer you our services at very low rates. Please discuss your project in detail. We will deliver design and code, if you want us to send you prototype, you have to pay additional charges of prototyping and courier such as dhl etc. We are very friendly in nature and will help our clients during and after projects completion. We are flexible in communications and rates. Very much looking forward to hear from you on this in coming days. Regards, Ahmed Lead Technical Engineer Turktroniks
$350 USD in 10 days
4.8 (42 reviews)
6.9
6.9
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Hi, I am a post graduate power electronics engineer and having very good experience in product design and development. I am excellent in embedded programming using pic and dspic controllers for Power projects, Boot loaders, EEprom. I designed sine wave inverters for standalone and grid tie Inverters. I designed projects like Off line UPS up to 3 KVA, synchronous rectifiers, Solar MPPT chargers, Battery chargers ,Grid tie inverters design with PLL and feedback control circuit emergency light of 66W and Online UPS control cards, Battery Charging power supplies, LED drivers for PWM controlling and dimming, SMPS, Power supplies. I have experience in schematics and PCB design experience in Altium and ORCAD. I am ready to work for you. Please contact for further discussion.
$777 USD in 14 days
4.9 (12 reviews)
6.0
6.0
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Hello Sir/Madam, I am Anthony Perera from Sri Lanka and I have multiple degrees on Engineering field. Why you should hire me ? * I am a FULL TIME freelancer and once a project is awarded to me,all my time will be dedicated to that specific project so you will get fast and quality work. * I have been in the field of product designing so if you are developing a commercial device I can help you to design it at very low cost and also can get into contact with Chinese manufacturers who I work with. Very reliable and fast. * I have my own PCB printing facility and also a workshop where I can design and manufacture any number of samples/prototypes. In that way you don't have to find some one else to test my work. * My prices are very fair and can be negotiated all the time. I am very flexible and very understanding. You can see my reviews. Check my profile. See for your self. https://www.freelancer.com/u/Anthony989.html Thank you Anthony Perera
$444 USD in 10 days
4.8 (54 reviews)
6.4
6.4
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hi i am an electrical engineer. i have vast experience related to circuit design and micro controller programming. i have done many embedded system projects. i have hardware experience micro controllers. let me know if you are interested. we can discuss further on chat.
$750 USD in 10 days
5.0 (21 reviews)
6.0
6.0
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Hello, I have read the project description and I have experience most of parts. We can talk all details over the chat. All the BEST, Ali ŞERBETÇİ
$750 USD in 25 days
5.0 (15 reviews)
5.6
5.6
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Hello Dear, We are a team if experts with a combined experience of more than 50 years in the field of embedded systems, electronics, prototyping and PCB layout. Our experts have years of experience with 8-bit, 16-bit and 32-bit architectures developing ultralow power designs with computational complexity. We work in smart meters, wireless, automobiles and medical. I have checked the details of your work and shared the same among my team. I am happy to offer you our services. We have vast experience with PIC MCU, ESP12 WiFi and rf. I am online and available for discussion
$500 USD in 20 days
4.5 (59 reviews)
6.2
6.2
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Hello from Venezuela my name is Manuel I'm Mechatronic Engineer I have experience and knowledge programming microcontroller (PIC16F & PIC18F) and esp8266 (I have ESP-12E Module amica v2), I want to be honest with you, I can develop the firmware and test it I have experience working with the sensor temperatura, I can to develop the software for PIC in PIC CCS and migrate it to MikroC, I have here an esp8266 12E to make test if you want it. I'm to order. Regards Ing. Manuel C. 100% Freelancer
$390 USD in 20 days
5.0 (25 reviews)
5.2
5.2
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Hi, We are Leaftronix Analogic solutions Private Limited, an Electronics Design & Development company, based in Talod, India. We provide Electronic design services including Circuit design, Firmware development, PCB layout and fast prototyping in the field of Industrial Automation, Power Electronics, Communication, Agriculture, Medical and Telemetry. Our primary focus is always on Energy Efficiency of the system and that reflects in all the designs we work on. We have long experience in using PIC controllers. We have recently worked on a small battery operated system based on the PIC you are using, PIC16F1513. For battery operated devices, we mainly prefer MSP430 and PICs with XLP. Your requirement looks similar including Low power HopeRF module, Temperature sensors. Also as you mentioned, you will provide both the codes of the first revision, we will check the total work required and we may change our bid amount based on the same. Kindly give us this opportunity to work with you and we will not let you down. We look forward to working with you on this project and also on your future projects. Thank you. Tushar
$720 USD in 35 days
5.0 (9 reviews)
4.8
4.8
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Hi. I can help you with this. I have experience writing embedded system code and on PIC as well.
$500 USD in 15 days
5.0 (4 reviews)
3.8
3.8
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I am an electronic engineer with more than 10 years of working experience. I have worked on several similar wireless sensor network projects. i have experience working with PIC16 and mikroc. I can work with you on this and provide multiple iterations of the firmware to suit your needs. Please contact me to discuss details.
$750 USD in 20 days
4.8 (6 reviews)
4.1
4.1
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hi, I have worked on nrf and esp WiFi module . I can send you the picture of working prototype. it was a smart meter to measure individual solar panel voltages . nrf was used to communicate with other solar panel arrays. the master trnamits the data on Matt server using esp module.
$666 USD in 30 days
5.0 (6 reviews)
3.3
3.3
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Sir i am experience electronics engineer having expertise in embedded systems and IOT based system i have strong command over ESP8266 and OneWire SPI and PIC microcontroller please visit my profile to gain confidence in me and contact me for quality work and service
$555 USD in 15 days
5.0 (2 reviews)
2.5
2.5
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I can do this work for you. I have been developing projects as yours. hope we can talk about your project.
$444 USD in 10 days
5.0 (2 reviews)
2.1
2.1
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Hi, I'm an IoT expert and I have already done a project similar to yours (Wireless Sensor Network). Let's discuss your project in detail.
$450 USD in 20 days
4.8 (1 review)
0.4
0.4
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FREELANCER RECOMMENDED ------------------------------------------------------ Can help... I am an Expert... Lets Start! Please start a Discussion with me and we can get started from there... Please check the past projects I have handled and check my reviews for what employers have to say about my work... Can start right now...
$2,000 USD in 10 days
5.0 (2 reviews)
0.0
0.0
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I have experience in wireless protocols and iot system design. I can support very much close to your expectations
$555 USD in 30 days
0.0 (0 reviews)
0.0
0.0
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Hi, I am embedded systems designer and Android applications developer and have great experience developing projects to control hardware with Android applications through bluetooth and wifi etc. and would love to work on this project. Please contact. regards, Ali
$1,111 USD in 15 days
0.0 (0 reviews)
0.0
0.0
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worked as Iot engineer since 2 years
$333 USD in 15 days
0.0 (0 reviews)
0.0
0.0
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Have worked on ESP8266 and pic controllers based projects and very passionate about Embedded System...
$500 USD in 18 days
0.0 (0 reviews)
0.0
0.0
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Bonjour, I noticed that your project fits perfectly with our experience, thus I would like to offer our services. In order to confirm our experience in requested area I'm providing you with some examples of the projects we completed: * Snow gun remote control device (hardware, firmware, bluetooth, wifi), * Integration of Profinet Stack on PIC32, * TCP/IP stack implementation for embedded devices (MISRA compliant), * universal board development to manage BLDC, BDC and two-phases stepper motors, * GSM GPRS modem board (hardware and firmware development), * Radiolocation data recorder BSP and application development (hardware, firmware), * Insulation resistance tester software and hardware development (ARM, drivers), * Car infotainment systems, firmware development (ARM, bare metal, C), Please let me know if you may be interested in working with us, then I will send you more detailed information about our company, completed projects and reference letters examples. ABOUT US: Since 2006 JPEmbedded provides comprehensive embedded systems design and implementation services. Most of our customers are west European manufacturers representing industrial automation, automotive, medical and energy markets. Currently our team consists of 28 engineers. Availability: January 2017 (to be confirmed). Fixed price cooperation model possible. I would be happy discussing the details of your project with you. cordialement, Maciej Gasienica JPEmbedded skype: gasienica_maciej
$250 USD in 10 days
0.0 (0 reviews)
0.0
0.0

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suresnes, France
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