Arduino GSM Temperature logger

Need a prototype for a project. My needs are:


* An Arduino based PCB

* Two temperature sensors, preferably DS18B20

- The first temp sensor attached to a 1,1 meter long cable

-The second temp sensor attached to a 0,2 meter long cable

* A GSM shield, preferably SIM900 or other GSM shield that will work world wide

* Re-chargable battery, preferably standard size AA

* A battery holder

* on/off switch

* a box for all electronics

* a micro usb port

All those parts soldered and fitted in a box. No loose parts! Needs to be screwed into the box with temperature sensor hanging out and on/off switch easy accesseble.


So, what should this thing do? Pretty easy. The sw should collect data from the two temp sensors once every 120 second and send the data in degree Celcius to thingspeak. The sw should be optimized to use a minimum of battery power. Some kind of sleep mode is needed. I should be able to insert my own SIM card and via the usb/arduino software enter the pin code. The source code needs to be well commented.

I will review your progress. First to see your HW shopping list, second to see the HW build, third to se the product working (preferably via a video or skype) and after that you need to ship the product to me in Europe.

Skills: Arduino, Electrical Engineering, Electronics, Microcontroller

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About the Employer:
( 0 reviews ) Fristad, Sweden

Project ID: #18154542

29 freelancers are bidding on average $446 for this job



$863 USD in 3 days
(63 Reviews)

Hi, I hope you are doing well. I have expertise in GSM based embedded projects. I have reviewed your projects details and I can execute it in less possible time. I would like to discuss the project in more detail More

$1333 USD in 30 days
(68 Reviews)

Senior ENGINEER has more of 40 years’ experience in this profession, developing Hardware and Software Expertise in video processing and associated simulation and evaluation tools and methods, communication I2C, I More

$555 USD in 10 days
(45 Reviews)

Hello sir, I have experience in designing electronics circuits and can make your project. i will make your project completely on my side and will deliver a working prototype. I can also develop hardware compatible and More

$300 USD in 15 days
(34 Reviews)

I can build such device because I have experience on Arduino UNO/MEGA board to build any kind of IoT device to send sensors data to the web server by using Wifi or GSM module. Have more than 15 years of experience on D More

$1500 USD in 30 days
(8 Reviews)

Hello. Im designing different electronics devices, mostly based on avr, arm MCUs and boards with them like arduino, stm-discovery etc. (autopromotion^)) It is logical to use separate mcu, but not arduino board, si More

$155 USD in 3 days
(28 Reviews)

Hello. Thanks for posting this project. I am an expert having rich experience in schematic circuit and PCB layout. best regards.

$333 USD in 3 days
(11 Reviews)

Hello. Greetings of Peace! I have great experience in developing custom electronics systems. I have developed an automation for a solar thermal power plant and have created many other industrial solutions. I have More

$500 USD in 20 days
(20 Reviews)

Hi, I have read your project description. I guess for all of those component including Box, I need budget about 100-150$ here. And I guess You will pay me for it. I will use acrylic box, Arduino Uno, SIM900 shield, an More

$355 USD in 25 days
(21 Reviews)

Hello, Thank you for the Detailed Description. I have done a similar project with TWO DS18b20 temperature sensors with NodeMCU and Arduino UNO before that sending data on Thingspeak as well as on SD card with Alert More

$250 USD in 7 days
(17 Reviews)

Hi! Sounds pretty easy so far and I am ready to start. Please drop me a message and we will discuss all details or even let`s arrange a small call. What do you think? Thanks AndreW

$500 USD in 3 days
(1 Review)

I am member of a team called 3Mode Team, and this is our official freelancer profile. Our team is consisted of electrical/embedded engineers, web developers, designers and software developers. In the field of electron More

$1450 USD in 50 days
(1 Review)

I had made exact project like this for client before, if you are interest, I can send u photo. please have a chat. you can get this done in just 5 days.

$500 USD in 5 days
(2 Reviews)

Hi, i have good skills in arduino. I have worked on industrial control system project in which i have used temperatur, smoke, gas leakage sensors and send data over GSM to user and HC-12 used for master controller. Th More

$250 USD in 6 days
(4 Reviews)

Hello! I'm an electronic engineer with experience in modified Arduino. I can help with this project. Y think an Arduino Uno based system with an Atmel 328p MCU could be ok. I propose you a board with a charger f More

$222 USD in 10 days
(10 Reviews)

Hi, I did a very similar system, fits in a 7x5x4 cm box (excluding batteries) and already uses: Gsm module Arduino DS18b20 can be equipped with hardware watchdog PCB already available upgradeable OTA More

$144 USD in 10 days
(1 Review)

I have recently completed huge projects on arduino raging from Remote power monitoring system, incubator system, using Temperature n humidity sensors. I delivered more than 60 Arduino based projects Relevant Skills More

$222 USD in 2 days
(0 Reviews)

Hi, I saw that you are looking for a developer to build a data logger using temperature sensor and sim 900 with arduino chipset. I can provide you that with complete project and ship you the project to Europe. I alr More

$222 USD in 15 days
(0 Reviews)

I have made projects like this and have prior experience in the modules which are to be used in the projects. I will complete this project on time as said. So please provide us with this project.

$300 USD in 15 days
(0 Reviews)

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$155 USD in 3 days
(0 Reviews)