Solar-Powered Smart Plant Monitoring IoT Device

$750-1500 USD

Closed

Posted 4 months ago

$750-1500 USD

Paid on delivery

IoT Engineer for Smart Plant Monitoring Device Prototype (ESP32 + Solar Powered) Project Overview: I’m looking for an experienced IoT hardware engineer to develop a solar-powered smart plant monitoring device. The device will monitor soil moisture, light levels, and temperature/humidity and send real-time data to a mobile app. It should also include a USB-C port for an optional plug-in nutrition sensor (NPK or general soil fertility analysis). The goal is to create a working prototype that is energy-efficient, reliable, and scalable for manufacturing. ⸻ Project Requirements: 1. Hardware Design & Development • Microcontroller: ESP32 (WiFi + Bluetooth) • Power Management: Rechargeable 18650 Li-ion battery powered by a 5V, 1W-3W solar panel • Sensors: • Capacitive Soil Moisture Sensor • BH1750 Light Sensor • DHT22 or SHT31 Temperature & Humidity Sensor • USB-C Port: For future plug-in nutrition sensor • Low-Power Mode: ESP32 should optimize energy usage • Waterproof Enclosure: IP65-rated case for indoor & outdoor use 2. Firmware Development (ESP32) • Read data from moisture, light, and temperature sensors • Send data via WiFi/Bluetooth to a mobile app (basic UI) • Implement power optimization (deep sleep mode) to maximize battery life • Support future USB-C plug-in NPK sensor integration 3. Deliverables ✅ Fully assembled and working prototype ✅ Firmware code (ESP32) with documentation ✅ Circuit schematics & wiring diagrams ✅ Bill of Materials (BOM) listing all components ✅ Testing report (sensor accuracy, solar efficiency, and battery life) ⸻ Ideal Candidate: ✅ Strong experience with ESP32 & IoT device development ✅ Knowledge of sensor integration (soil moisture, light, temperature, humidity) ✅ Experience with solar power management & low-power embedded systems ✅ Ability to provide documentation & manufacturing-ready design ✅ Good communication skills for progress updates ⸻ Project Timeline & Payment Structure (Milestones) I prefer a milestone-based approach to ensure quality at each stage: 1️⃣ Component Selection & Circuit Diagram (~10-20%) 2️⃣ Firmware Development & Basic Testing (~30%) 3️⃣ Prototype Assembly & Functionality Check (~30%) 4️⃣ Final Testing & Documentation Delivery (~20%) ⸻ How to Apply: If you’re interested, please include the following in your proposal: ? Examples of similar IoT projects you’ve worked on ? Your estimated timeline & cost proposal ? Any questions or suggestions to improve the design

PCB Layout

Electronics

Electrical Engineering

Wireless

Microcontroller

Project ID: 39209602

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Active 3 mos ago

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44 freelancers are bidding on average $1,639 USD for this job

@Mahihassi

With a strong skillset in both electrical engineering and embedded systems, I'm confident that I can provide the reliable, scalable IoT solution that you need for your solar-powered smart plant monitoring device. Not only am I well-versed in working with the ESP32, but my extensive experience in other microcontrollers such as Raspberry Pi, STM32, and Arduino will bring versatility to your project. One of my specialties is power optimization in autonomous systems like what you're looking for. I have successfully designed low-power embedded systems accommodating sensor integration - capacitive soil moisture sensor, BH1750 light sensor, DHT22 temperature & humidity sensor - similar to what your project demands. Moreover, my understanding of solar power management combined with my ability to create firmware code ensuring efficient use of energy will contribute significantly to preserving battery life. Lastly, I understand the importance of documentation and manufacturing-ready designs. My previous work has involved providing clients with circuits schematics, wiring diagrams, BOMs, testing reports - all essentials for a successful implementation. Rest assured that I'll keep you updated throughout the process and deliver a fully assembled prototype that meets your requirements. Let's make your smart plant monitoring IoT-device a reality while optimizing energy usage and maximising battery life!

$1,500 USD in 7 days

5.0

(260 reviews)

8.0

@amelectronics

Hi, I have experience in designing Circuits and can complete your project. I have expertise in the following: 1- Designing schematic and PCBA 2- Ordering the PCBA and getting boards manufactured. 3- Writing firmware for the PCBA to make sure everything works as expected. 4- I can also develop smartphone apps to communicate and control the hardware. If you wish we can discuss in chat. Thank you.

$1,200 USD in 15 days

4.8

(81 reviews)

7.3

@ircrashed

Hello I have got your job posting “Solar-Powered Smart Plant Monitoring IoT Device” and I am very much interested to work in your project. I am a circuit designer and have more than 5 years experience of working with the Analog/Digital Electronics embedded systems(Arduino, Raspberry pi ,ARM processors ,PIC microcontrollers, ESP Wifi/Wireless boards, TFT Touch Displays, All types of sensors and actuators).I have done tons of similar projects So, I think you’ll find that, I have the skills you’re looking for. For more on my skills and successfully finished similar IoT projects, please have a look on my Profile and Portfolio. I have all the components available here with me so I will develop a working prototype according to your specifications and then send you the code and schematics so things will work for sure.I can deliver you the fully assemble working prototype and will remotely guide you and help you build the system on your side. I am always available on Email and Skype. Please have a voice or video chat if necessary. I shall be available round the clock and able to start your project as soon as possible according to you. Thank you for your consideration, Best Regards, Haseeb Shafqat

$1,000 USD in 7 days

4.9

(68 reviews)

6.6

@Adeel2k14

I am an IoT hardware engineer with extensive experience in ESP32-based smart devices, low-power embedded systems, and solar-powered electronics. I have successfully developed sensor-integrated IoT solutions with WiFi/Bluetooth communication, power optimization, and scalable designs. For your smart plant monitoring device, I will design a low-power, solar-powered ESP32 system with soil moisture, light, and temperature sensors, while ensuring USB-C expansion support. I will deliver a fully assembled prototype, firmware, schematics, and documentation for manufacturing. Looking forward to discussing your project in detail. Best regards, Adeel

$1,200 USD in 15 days

4.8

(80 reviews)

6.5

@AwaisChaudhry

Hello, I understand your need for a solar-powered smart plant monitoring device that uses the ESP32 microcontroller to gather data on soil moisture, light, and temperature/humidity. My approach will include designing efficient hardware that supports the required sensors, ensures low power consumption, and maintains a reliable connection to a mobile app. I will ensure the device is housed in a waterproof enclosure for durability and easy scalability for future manufacturing. I will provide a fully assembled prototype along with comprehensive firmware documentation, circuit schematics, and a Bill of Materials. Additionally, I will run thorough tests to ensure the sensor accuracy and the efficiency of the solar power system, meeting your expectations for this project. What specific mobile app platform do you prefer for data visualization and control? Thanks, Muhammad Awais

$1,500 USD in 12 days

5.0

(2 reviews)

5.9

@umg536

Hi there , I'm bidding on your project "Solar-Powered Smart Plant Monitoring IoT Device". Let's dive in and have a meeting I am expert in this area. please leave a message on my chat so we can discuss the budget and deadline of the project. I have read your project description and i'm confident i can do this project for you perfectly. Regards, Usama ..

$1,500 USD in 5 days

4.7

(12 reviews)

6.0

@addiskkb3

Having successfully completed several projects in the realm of electrical power engineering, I believe I possess the requisite skills and experience for your Solar-Powered Smart Plant Monitoring IoT Device project. As an IoT engineer, my working knowledge of ESP32 microcontrollers, sensors such as capacitive soil moisture sensor, BH1750 light sensor, and DHT22/SHT31 temperature-humidity sensor - coupled with my expertise in solar power management - will be invaluable in realising your monitoring device prototype. I have a firm grasp on low-power embedded systems and appreciate the importance of power optimization in prolonging battery life. Additionally, I am proficient in firmware development for ESP32 and would ensure the required functionalities are implemented to meet your expectations. Throughout the project, I assure you a regular line of communication to provide progress updates, address any concerns and incorporate any suggestions for enhancement. My aim is to not simply meet your expectations but exceed them through timely delivery of a reliable smart plant monitoring device that fulfills your objectives perfectly. Let's get started!

$1,500 USD in 7 days

5.0

(17 reviews)

5.8

@kazemmojtama

Hello, good time Hope you are doing well I'm expert in MATLAB/Simulink, Python, HTML5, CSS3, Java, JavaScript and C/C#/C++ programming and by strong mathematical and statistical background, have good flexibility for solve your project. I have many experience practical and theoretical in implementation different algorithms (such as: state estimation and Kalman filter, design controller, analysis closed loop stability, signal and systems, signal processing, heuristic optimization, fuzzy logic, neural network and machine/deep learning fields). Evidence of this claim exist in the portfolio. I have read your project description and I can help you (without any plagiarism). Please send me the details of your project. Thanks for attention 100% Jobs Completed, 100% On Budget, 100% On Time ⭐⭐⭐⭐⭐ 5-star reviews

$1,125 USD in 7 days

5.0

(11 reviews)

5.3

@engrusmanfaiz

I'm Electrical Design Engineer and having expertise in STM 32 Esp 32, PCB designs, Altium PCB layout developer and electronic circuits. I propose designing and development of a solar-powered ESP32-based smart plant monitoring prototype with sensor integration, low-power optimization, and manufacturing-ready documentation. I have more than 10 years of experience in the field of Electrical engineering and PCB designs. I have done PhD in electrical engineering. Hire me once and see the expected results of Solar-Powered Smart Plant Monitoring IoT Device Commercial Solar Panel Technical Specifications. Regards Engr Usman

$925 USD in 4 days

4.5

(34 reviews)

5.4

@debosx

Hello! I'm a highly skilled PCB Designer with over 9 years of expertise in delivering reliable and efficient PCB designs. I specialize in creating precision designs tailored to client's needs, utilizing top-tier design tools such as Altium Designer, Autodesk Eagle, KiCad, EasyEDA, Siemens PADS, DipTrace, Proteus, Fritzing and OrCAD. My goal is always to ensure the highest quality and performance in every project. Core Expertise : • Schematic Capture & Layout Design • Component Selection & Library Management • Reverse Engineering (PCB Replication, PCB Cloning) • Gerber, BOM, and CPL File Generation & Manufacturing Support • Design for Manufacturability (DFM) and Design for Assembly (DFA) • PCB Design & Development (Single, Double, Multi-Layer, Flexible PCBs) Industries Served : • Medical Devices • Telecommunications • Consumer Electronics • Industrial Equipment • Automotive Electronics • Safety and Security Devices Why Choose Me? • Attention to Detail and Commitment to Quality • Strong Communication Skills & Client-Centric Focus • Timely Delivery & Flexible Approach to Meet Project Requirements I would love to help you with your next PCB design project. Feel free to reach out, and let’s discuss how I can bring your ideas to life! Best Regards, Utpal

$1,125 USD in 10 days

5.0

(35 reviews)

4.9

@cesur135

As an experienced IoT engineer, I have a diverse set of skills that make me an ideal candidate for your solar-powered smart plant monitoring project. I specialize in hardware design and development, precisely assessing the components needed for your device such as the ESP32 microcontroller, power management system, various sensors like soil moisture, light levels, temperature and humidity, USB-C port, low-power modes down to waterproof enclosures. I will deliver a fully assembled prototype with circuit schematics, wiring diagrams, a Bill of Materials and comprehensive testing reports to ensure its reliability. Given my systematic and detail-oriented approach gained from my Siemens TIA Portal program work down through my E-Plan P8 V2.6 program experience electrical project management background,I'm confident I can provide you with not only a robust prototype but also clear documentation ready for production. Rest assured that throughout this journey, my communication skills will ensure seamless progress updates. For a device central to supporting our understanding of nature's health, let's choose efficiency without compromising efficacy - let's choose me!

$1,125 USD in 7 days

4.7

(12 reviews)

5.2

@Amidst

Hey there! Right now, I am working this type of project, I’m Alok, a PCB, Circuit and Mechanical designer with a passion for turning ideas into rock-solid, high-performance circuit boards. With nearly a decade of experience, I’ve tackled everything from compact consumer gadgets to complex industrial systems—always with a focus on precision, efficiency, and reliability. What I Bring to the Table: # Schematic & Layout Design – Clean, optimized, and manufacturable. # Component Selection & Library Management – No surprises, just the right parts for the job. # Reverse Engineering – PCB cloning, replication, and improvements. # Gerber, BOM & CPL Generation – Ready for seamless production. # DFM & DFA Expertise – Because great design means smooth manufacturing. # Multi-Layer, Flex, & High-Density PCB Design – Whatever the project needs. Why Work With Me? ✔ Detail-obsessed, quality-driven. ✔ Great communication—because collaboration matters. ✔ Flexible, deadline-conscious, and committed to delivering the best. If you need a PCB that’s efficient, reliable, and built for real-world performance, let’s chat. I’d love to help bring your project to life!

$1,500 USD in 10 days

5.0

(28 reviews)

4.6

@nabeelraza1993

Hello, I have over 8 years of experience in IoT hardware development, specializing in ESP32-based smart monitoring systems. I have designed and optimized low-power, solar-powered embedded systems with sensor integration for real-time data transmission. My expertise ensures an efficient, scalable, and manufacturing-ready prototype. Do you have specific preferences for mobile app communication—WiFi, Bluetooth, or both?

$750 USD in 7 days

4.9

(31 reviews)

4.8

@jitendrabaraiya

With over 10 years of expertise in embedded systems, power management, and sensor integration, I have successfully designed and developed multiple ESP32-based IoT solutions with a focus on solar-powered, low-energy optimization. My extensive experience in developing smart agriculture monitoring systems ensures that this project will be executed with precision, reliability, and efficiency. This proposal outlines the scope of work, deliverables, technical approach, and my qualifications for developing a cutting-edge IoT agriculture sensor system optimized for energy efficiency and long-term sustainability. if you see my work i can send you my esp32 based product picture.

$18,800 USD in 120 days

4.9

(8 reviews)

4.9

@electronicsdone

Best Solar-Powered Smart Plant Monitoring Expert! ⭐⭐⭐⭐⭐ Dear Client, I can help develop your solar-powered smart plant monitoring device with ESP32 integration. With over 30+ years of experience in PCB design, circuit design and IoT hardware development, I’ll ensure your device is energy-efficient, reliable, and scalable for manufacturing. ✅ Valuable Suggestion: Consider implementing LoRa or Zigbee connectivity for larger farms, allowing long-range data transmission with minimal power consumption. ✅ Proposed Design: 1. Smart Monitoring: Tracks soil moisture, light levels, and temperature/humidity. 2. Solar-Powered Efficiency: Optimized power management with deep sleep mode. ✅Similar IoT Projects: 1. Smart Greenhouse Monitoring System – I have developed an ESP32-based system to monitor temperature, humidity, soil moisture, and light levels. 2. Remote Weather Station – I have designed a compact, solar-powered IoT weather station with environmental sensors (DHT22, BH1750, barometric pressure). ✅ Why Choose Me? 1. Expert in ESP32 & IoT Development: Strong background in low-power embedded systems. 2. Experience with Sensor Integration: Proven work with soil moisture, light, and environmental sensors. ✅ Quick Question: Do you have a specific NPK soil sensor model in mind, or should I suggest one based on cost and accuracy? Looking forward to bringing your smart plant monitoring device to life! Best regards, PCB Must Innovations

$1,000 USD in 2 days

3.4

(15 reviews)

6.4

@shykhAbubakar

Hi, I aim to assist you in developing a solar-powered smart plant monitoring device using ESP32, designed to monitor soil moisture, light levels, temperature, and humidity. The device will transmit real-time data to a mobile app via WiFi/ Bluetooth, powered by a rechargeable 18650 Li-ion battery with a 5V 1W3W solar panel. Additionally, the design will incorporate a low-power mode for optimized battery life, support for future USB-C NPK sensor integration, and an IP65-rated waterproof enclosure while ensuring compliance with applicable IEC and IEEE standards. Project Deliverables: 1. Circuit Schematics and Wiring Diagram 2. Bill of Materials (BOM) 3. Firmware Code with Documentation 4. Functional Prototype 5. 3D CAD Model and Enclosure Design 6. Testing Reports a. Sensor Accuracy Analysis b. Solar Efficiency and battery performance Evaluation I have a question: Q. What are the size constraints for the enclosure? I am proficient in the following software: 1. Altium Designer/ KiCad/ Eagle 2. Arduino IDE/ ESP-IDF 3. AutoCAD/ SolidWorks You can see examples of similar projects in my portfolio. I am looking forward to scheduling a meeting with you for further discussion. Warm Regards, Abubakar

$1,066 USD in 7 days

5.0

(13 reviews)

4.5

@mazeemsk

Hi, I am an Electrical Engineer and IOT expert worked on many projects using Raspberry Pi Arduino and ESP32 since 2015. I read your project description and very much interested in this project. Please leave a message for more discussions. Thanks

$750 USD in 7 days

4.5

(22 reviews)

4.7

@assignsolver

I am Faisal Mahmood, I have more than 10 Years of experience in crafting tailored solutions for success, including; Business Plans, Pitch Decks, Feasibility Reports, Resumes, Cover Letters, and LinkedIn profiles. Over the past ten years, I have consistently delivered exceptional results, helping clients navigate the competitive landscape with precision and finesse. With a proven track record spanning ten years, I bring a wealth of experience to every project, ensuring not just quality but a profound understanding of evolving industry dynamics. My approach is rooted in precision, innovation, and a relentless pursuit of perfection, setting a standard that goes beyond expectations. I am damn sure that you will love my services, try me once at least. I am anxiously waiting for your messages.

$750 USD in 1 day

4.6

(14 reviews)

4.0

@nehasingh17

With years of experience in the realm of IoT and extensive knowledge in embedded software development, I believe I am the most equipped candidate for this project. My team and I have worked with diverse microcontrollers including Arduino, STM32, ESP32, and Raspberry Pi-- platforms that perfectly align with your project requirements. We’ve also utilized languages like C, C++, Python, and Javascript; ensuring your firmware is highly functional and optimized for energy efficiency. Our proficiency extends to the areas of sensor integration especially when it concerns soil moisture monitoring, light sensing systems, temperature & humidity assessments - all key components needed for this project. Additionally, our knack for power management systems partnered with proven familiarity with low-power embedded systems like the ESP32 is crucial to achieving your desire for a sustainable, rechargeable device powered solar power. In choosing us for the development of your Solar-powered Smart Plant Monitoring IoT Device you are guaranteeing quality and efficiency at every level of execution. Given the chance, we reassure you of meeting and even surpassing every expectation

$1,100 USD in 7 days

5.0

(3 reviews)

3.7

@isurutech

Dear Sir, I would like to present myself as a prospective candidate for your project. I have extensive knowledge and experience in electronics and programming, including ESP32 programming. After carefully reading your project description, I am confident that I am the best candidate for the job, as my skills and experience perfectly align with your requirements. I have one clarification regarding the mobile app: Do I need to develop the app as well? (I am capable of Android programming.) I specialize in IoT programming, integrating sensors with ESP32, and developing programs to read and process data. Due to the complexity of this project, it is difficult to cover all details in this message. However, I can assure you that I am fully capable of successfully completing your project. Regarding cost and time estimation, it is challenging to provide precise figures without first designing the system. However, a realistic estimate for completion would be approximately three months. Please message me so we can discuss further. I look forward to your favorable response. Best regards, Isuru Athukorala

$1,000 USD in 7 days