Arduino, triple temperature measurement, small App

First, I’m a technician with no experience of programming an Arduino or whatsoever.

So I can’t help in programming and give only technical information and needs.

Measuring on a cooling unit at a sample rate of 1 measurement/minute (saving battery), 3 NTC (preferable) temperature probes and 2 reed contacts.

At a plant, there can be 20 to 30 Arduino’s fulfilling same task.

As soon as some control parameters are triggered, an alarm (contact) is generated and a led starts flashing on the housing and additional a sound alarm as well. Sound can be switched off by a push button and reactivates after a certain time if alarm still exists.

Preferable battery controlled. Arduino monitors state of the battery and alerts when battery drops below safe level.

Optionally, preferable via Zigbee (or similar but better than Bluetooth), alarm contacts are sent to a main controller, controlling all the different Arduino’s.

This main controller generates an alarm sending a general alarm to a mobile phone (Wifi) via a small app, specifying which Arduino activated.

I must be able to control the Arduino ‘decision’ software so that I can adapt easily on-site the triggering values. Temperature values needs to be compared to each other and triggered after certain elapsed safety time.

If we could follow in real-time the measured values (app on phone) while programming the Arduino, that would be great.

Specify where you think additional PCB’s needs to be added to a standard Arduino (or clone)

I need to have an idea for the small Arduino board and additional the main controller.I can see where the automated messages are cooming from

Several bidders pointed me to the fact that a ESP32 would be a better solution for this project. It's indeed a better solution=. Perhaps those not familiar with this board can retract thier bid

Skills: Arduino, Electronics, Microcontroller, Electrical Engineering, C Programming

See more: small app php mysql, ade7758 temperature measurement, small app monitor windows folder, delphi small app, small list write similar function, small app mac, iphone app booth similar, iphone small app icon, small app change proxy, app android similar talking carl iphone, app iphone similar monopoly, small app iphone, small app symbian, small app show houses informaiton, app android similar draw, cocoa small app

About the Employer:
( 2 reviews ) Zedelgem, Belgium

Project ID: #21831199

71 freelancers are bidding on average €603 for this job


Hi i am experienced embedded system developer with more than 11 years of experience. I have worked on electronics and arduino for more than 259 projects. Please share the further details of the project for me to revie More

€500 EUR in 7 days
(248 Reviews)

Hello, I'm very interested in this project since I have 8 years of experience in wearable device and IoT product design. I read project description carefully and understood that you are expecting hardware suggestion, A More

€300 EUR in 10 days
(24 Reviews)

Thanks for sharing your project. I'm fully read the description, so that, I'm very interested to this project. As I'm a Senior Embedded System engineer, I have rich experiences in many embedded systems development, More

€1200 EUR in 8 days
(40 Reviews)

Hi Sir, We have read and understand your project. We are expert in ESP32 and all kind of microcontrollers, we are IOT experts, We are making professional PCB designs and prototypes. Lets talk to us on it. We are p More

€450 EUR in 7 days
(49 Reviews)

Hi, how are you? Thanks for your project. I've read your description carefully, and I'm very interested in your job. I have been developing many firmware and hardware jobs using Arduino for 5+ years. Please have a look More

€680 EUR in 7 days
(50 Reviews)

Interesting job, but it needs a details discussion to plan the best suited design. Please get in touch for discussion and I will assist you with complete solution along with testing of testing prototypes. You will have More

€3000 EUR in 35 days
(62 Reviews)

Greeting there , I could absolutely help you with your Arduino/temperature measurement/APP project i am very excited work on your project and help you get it done in short time About my experience : [login to view URL] More

€600 EUR in 7 days
(42 Reviews)

I CAN COMPLETE YOUR PROJECT EASILY Hello, I am software developer with enough experiences on C/C++, Arduino for 13 years. I can work by full time for your project and trying to satisfy the requirements. I am designing More

€500 EUR in 7 days
(17 Reviews)

I would propose to use nRF24 radio modules with Arduino Nano or Uno. There are special boards available for this solution, so not special PCB will be necessary at the testing stage. To have a really low power consumpti More

€450 EUR in 10 days
(82 Reviews)

We are a team of Electrical and Electronics engineers and we are Excellent in the following areas: • Embedded C Programming. • VHDL/Verilog • Microcontroller like Arduino, Raspberry Pi, FPGA, AVR, PIC and STM32. • ID More

€750 EUR in 7 days
(31 Reviews)

Hello I have got your job posting “Arduino, triple temperature measurement, small App” and I am very much interested to work in your project. I am a circuit designer and have more than 5 years experience of workin More

€500 EUR in 12 days
(42 Reviews)

Hi, I am interested in it. I have done projects like this before. Send me a message to discuss more about it. You can see my projects on [login to view URL] (That's my website) [login to view URL] More

€750 EUR in 7 days
(17 Reviews)

Hello! I will do this for you. I will make code for arduino and Android app both. Kindly come over chat and plan the project. I suggest you to use WemosD1R1 with screw shield. You will not need any pcb. You will just h More

€500 EUR in 7 days
(30 Reviews)

Hello, I advise you to use Raspberry Pi as the main controller due to its reliability and efficiency. I had chance to offer low rates. But you need reliable and standard monitors for temperature and batteries. I advise More

€5000 EUR in 30 days
(23 Reviews)

Hi there You are looking for a ESP32 developer, that is exactly what I specialize in. Talk about a perfect match. I can build ESP32 firmware using both of Arduino or esp-idf. I have also a zigbee(but not esp32) and More

€500 EUR in 7 days
(1 Review)

hello i am a computer engineer,i have masters in computer engineering,i have experience for more than 8 years in arduino and electronics,i have made a similar project before during my graduation project ,i have all t More

€250 EUR in 2 days
(21 Reviews)

Hello sir/ma, I'm interested in taking this task up for you. I am an Electrical Engineer with a masters degree and I have high proficiency knowledge in FIRMWARE: FPGA firmware in VHDL and Verilog for Altera/Actel/Xilin More

€250 EUR in 1 day
(10 Reviews)

Hello I'm an electronics engineer with 10+ years of experience including industrial automation and instrumentation, and Arduino. ESP32 would be the best for the project if you have a stable WiFi. As an option of extre More

€450 EUR in 15 days
(8 Reviews)

Hello! I am very interested in your post project. i am really looking for this kind of project for a long time in freelancer since i have rich experience on it. I think this project is very suitable for me and i am su More

€500 EUR in 7 days
(7 Reviews)

HI, 'I see that you need some assistant in I am expert and having 5 years of experience in simulations using MATLAB and SIMULINK in many fields including Electronics, Communication, Control System, Signal Processing an More

€250 EUR in 1 day
(18 Reviews)