Completed

Water Tank SMS Alert

only someone with a proven experience with SIM800L GSM module specially DTR and RING PINs handling with open drain transistor.

Here's some information about the required and more information will be given after.

System components:

- Microcontroller

- GSM Module

- RTC with Interrupt pin

- Ultrasonic sensor

Consider the following:

- Low power consumption required.

- System powered by solar and lithium battery 3.7V (18650)

- Microcontroller EEPROM used to store configurations like

o Station name.

o Maximum distance.

o Distance measuring.

o Receiver mobile number.

o Checking period (every 12 hours, daily, weekly, every two weeks or monthly).

- Microcontroller and GSM Module running into sleep mode by default.

- RTC responsible to wake up the microcontroller via interrupt pin.

- When Microcontroller wake up will do distance measure by ultrasonic and compare to the stored maximum distance and if more than will wake up the GSM module and send SMS (English and Arabic, SMS will be given later) to the receiver mobile number.

- Configuration will be received by SMS (specific format to be documented for that) during sleep mode and RING pin will be handle the Microcontroller wake up to read the SMS from the GSM Module.

System components:

- MCU (Atmega328p DIP28)
- GSM Module (SIM800L)
- RTC with Interrupt pin (DS3231)
- Ultrasonic sensor (HS-SR04)

Low power consumption

To achieve low power consumption on all system we will use the following techniques:
1 – Using the Atmega328p internal 8MHz oscillator.
2 – Putting the Atmega328p in sleep mode and wake up by interrupt from:
- SIM800L RING pin when configuration SMS received.
- RTC alarm to measure the distance.

System power Source

System will be powered by solar and lithium battery 3.7V (18650). Hence charging and protection IC/ICs required in the circuit.

Configuration SMS
Microcontroller EEPROM used to store configurations like
o Station name.
o Maximum distance.
o Distance measuring.
o Receiver mobile number.
o Checking period (every 12 hours, daily, weekly, every two weeks or monthly).

When the SMS arrived (RING become low) MCU will do the following:

1 – Wake up and wake up the SIM800L by handing the DTR pin from sleep mode 1 and send AT commands wake up the controller and restore its full functionalities and read the SMS.
2 – After reading the SMS delete all SIM card SMS to be sure about the next read index (if required as per your experience).
3 – Put SIM800L into sleep mode 1 back.
4 - Verification and parse for the new settings.
5 – Store new settings into MCU EEPROM.
6 – Reconfigure/Reprogram the RTC/DS3231 Alarm settings.
7 – MCU will sleep mode back.

Configuration SMS format to be provided by you.

Distance measurement

MCU will use ultrasonic to measure the distance and compare to the stored minimum distance and if more than will wake up the GSM module and send SMS (English and Arabic, SMS contents to be strings variables declared and assigned on the code header for easily change) to the receiver mobile number.


Deliveries
- Eagle schematic and PCB.
- MCU C code and any used libraries.
- Help and support from you to me to achieve first prototype tested and working well is a part of the project and important more than any other deliveries.

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

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About the Employer:
( 0 reviews ) elarbeean, United Arab Emirates

Project ID: #17250649

Awarded to:

NgThuong

I done alot of project with module SIM (SIM900A, SIM800C, SIM800L), i have experience on RTC (BQ3200, DS1307, DS3231, RTC built in MCU). I desgined low power system using solar panel with MPPT charger, 18650 battery, u More

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21 freelancers are bidding on average $236 for this job

MIKY4227

i good day very high skill in RF,GSM,GPS,BLUETOOTH,WIFI, SENSING SIM800, SIM808, SIM868, SIM900, SIM908 Senior ENGINEER has more of 40 years’ experience in this profession, developing Hardware and Software Expertise i More

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mos3d

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kahan1994

Hi, i am kahan. I am embedded engineer and i read your details and i can make this. Waiting for further discussion. Thank you

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phielectronicdes

We have extensive experience in embedded systems incorporating wireless connectivity. We can guarantee the delivery of your project according to your specifications.

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consultotal

I am Scientist, electromechanical engineer, specialized designs, command over digital simulations and writing papers are of my better skills. I got more of five years of experience development works and researchs of sc More

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i have seven years experience in electronic product hardware and software design if you assign it to me i can deliver with good quality and with in the time.

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lmcordova

Hello, you can find a SIM800 project in my profile, I can do your project, I have used SIM800 on gate opener system, temperature monitoring system and level water meter using and stm32f103 micro controller, I have expe More

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Menna1211

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sivom

Hi, I have done water level sensor project. I have the device,sim800 module,solar panel ready. I can start [login to view URL] chat further. I can have skype call also Thanks, Senthil India

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I can make this project because i have already done this project in real time and its successfully running in my home.

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Paradoxx84

Hello, I'm qualified hard/soft engineer and have experience with GSM trackers on SIM800. What I have to say: ultrasonic sensors is not good in measuring water level.

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I have already built water level controller as well as GSM based SMS alert systems.. I need to just integrate both to get your product.

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kickkabilan

i can send you all the schematics and the written program

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