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Description: stm32(transmitter)-->nRF24-->stm32(receiver)-->sim900-->Internet * Transmitter is in sleep mode and every hour wakes up and receives temperature from BME680 (The embedded RTC on stm32g071rb has to be used it) *Then, it sends via nRF24 the temperature and the time (in form Day/Month/Year/Hour/Minute) to the receiver and returns in sleep mode *The receiver is in sleep mode and when a package from the transmitter is received, it wakes up to receive it and then it sends the received temperature and time via sim900 on a website (.php) Deliverables: *2 codes (1 for transmitter and 1 for receiver) *Schematic for the modules * Verification with measurements (power consumption) that the sleep mode works Deadline: There isn’t any deadline
Project ID: 34222380
17 proposals
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Active 4 yrs ago
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17 freelancers are bidding on average €213 EUR for this job

Hello sir, I have experience in designing electronics circuits and can develop hardware compatible smartphone and PC based apps. I also have done a lot of IoT projects and can transform your idea into a fully working product. I HAVE ALL THE HARDWARE AVAILABLE TO TEST AND DEBUG THE CODES. If you wish we can discuss details in chat. Thanks
€200 EUR in 7 days
7.2
7.2

Hi, With an experience of more than 7 years as an embedded software engineer and product lead, I can provide you with end-to-end IoT/embedded solution starting from your idea to its actualization and development; or anywhere in between. I have extensive hands-on experience with the following technologies, platforms and programming languages: ARM: NRF52, STM32, ESP8266, ESP32 Other boards: Arduino, Particle Wireless Protocols: BLE, 802.15.4 (OpenThread & Zigbee), WiFi, GSM SIM800 Other protocols: HTTP Development IDEs: Keil, Arduino, Visual Studio Programming Languages: C, C++, python You can see our portfolio/ reviews and feedback regarding automation projects. Please send a message in chat for further discussion. Thank you.
€500 EUR in 10 days
6.9
6.9

Hi. I hve good experience with stm32 and can help your project. I have similar project with sim900 for send message to receiver. So hope more discuss with you. regards.
€500 EUR in 7 days
6.7
6.7

Hi There, I am a senior PhD Level Expert and Have more than 5 years of experience in electronics and STM32 based project design. Just check my profile and share your details. Time and Budget will be discussed.
€140 EUR in 7 days
6.2
6.2

Hello, I have experience of developing firmware for stm32 mcu. I have worked with nRF24 and SIM900 modules.
€180 EUR in 10 days
5.9
5.9

Hello How are you? Thanks for your posting job. I have read your project requirements and I am 100% sure I can complete your project perfectly. ⭐ ⭐ ⭐ ⭐ ⭐ ⭐ ⭐ ⭐ ⭐ ⭐ ⭐ ⭐ ⭐ ⭐ ⭐ ⭐ I have 15 years experience in Circuit & PCB layout design and Microcontroller Firmware design. I will do my best to give you satisfactory results if you hire me. Please discuss about your project in more details. I can deliver your job efficiently within timeline. If you hire me, I think you won't regret. Best regards. Thank you Koba
€200 EUR in 7 days
6.6
6.6

Hello, I am an electronics and telecommunication engineer and my major is wireless systems' design. I am experienced in hardware and embedded systems' design. I have designed/printed/tested many PCBs and I am quite experienced with RF design such as designing antennas, matching networks(distributed/lumped elements), filters(distributed/lumped elements), power amplifiers, dividers, feed networks, differential pairs/signals, EMI, clearance areas, shielding for EMI, conducted interference, common mode, etc, LVD, high speed data communication. I have designed many LED lighting projects and I have checked your requirements I am quite sure that I can help you with your project. Just give me all the details and I will do my best to help you. Best regards
€140 EUR in 7 days
5.7
5.7

Hi, i am embedded system engineer with 8 years of experience. I can help you forward message from nrf to simcom with stm32. Let me know if you are interested
€250 EUR in 7 days
4.5
4.5

HELLO; I am working as a research and development manager in a private company. I have more than 5 years of experience in embedded system software and hardware. As for software, I am proficient in microcontrollers such as (*****STM32*****), MICROCHIP, NUVOTON,ARDUINO,ESP32,MSP430,RASPBERRY Pİ. I have experience in communication protocols such as CanBus, ModBus, RS232, RS485, TCP IP, Socket Communication. I am an expert in Altium and KiCad programs in hardware. I have read and understood your project. Please write to me for details.
€185 EUR in 7 days
4.5
4.5

Hello, i am ready exited to work you as i read your job description I am also an expert in making 2d,3d modelling and animating characters 2dautocad drawing ,elevation, solid work, Revit ,FBX ,Unity, Render also interior and exterior design. I have experience in field of more than 4+ years. I can Create Intro and Explainer Videos. for products and companies. Kindly check My Portfolio as well. Hope for your very soon reply. Thank you
€140 EUR in 7 days
4.1
4.1

Greetings, I'm a Professional Firmware Developer having experience working with stm32 and nRF24 and BME680 and Sim9000. If you want to ask any questions just message me right now for further discussions. Thanks
€110 EUR in 21 days
2.4
2.4

Good day, I trust you are well. I have read your project requirements and believe my experience and skills are well suited to complete it. I have done numerous projects with STM M0 and M3 MCUs in conjunction with GSM modules to achieve GPRS communication to a server. Thank you for your time
€140 EUR in 14 days
0.9
0.9

Hello there, I have great experience with Electronics, Embedded Software, Electrical Engineering, STM32 and Microcontroller. I am sure i can help u as i have experience with doing similar jobs. You can have a look at my profile here: https://www.freelancer.com/u/ayesha0124
€250 EUR in 9 days
1.6
1.6

hi client, I understood your requirements from the Project details. I can complete firmware development as you want within timeline. I have more than 7 years of experience in STM32 based boards and developed firmware for various sensors and peripherals. I am an experienced geek in STM based devices. You will get progress of the firmware development whenever you want. Lets discuss more on chat. looking for your positive reply soon. thanks
€180 EUR in 10 days
0.0
0.0

Thessaloniki, Greece
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Member since Jul 31, 2013
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