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NOTE: The labor budget for this project is strictly ₹5,000 INR. I will buy and ship the parts to you separately. I am an independent R&D developer prototyping a compact, battery-powered thermal enclosure designed to maintain a strict 25°C internal temperature for sensitive transit. I am handling the 3D-printed enclosure and thermodynamics. I need an electronics freelancer to wire the circuit and write the C++ code on a breadboard. Your Responsibilities: Wiring: Wire the following components on a breadboard: ESP32 SuperMini, Micro Peltier Module (TEC1-04903), 2x 30mm 5V blower fans, Logic-Level N-Channel MOSFET, IP2368 Fast Charge Module, 3.7V LiPo battery, DS18B20 temp sensor, and a 0.96-inch OLED display with an EC11 Rotary Encoder. (Note: I will cover the cost of components via a shared cart sent to your location). Display Logic: Write C++ firmware to display "Target Temp" and "Battery %" on the OLED. The rotary dial must adjust the target temp. Smart Inverter Logic (PWM): If the sensor reads higher than the target, drive the Peltier and fans at 100% PWM. As it reaches the target temp, smoothly throttle the PWM down (~20%) to hold the temperature steady and save battery life. Deliverables & Payment: Payment will be released as a fixed milestone after you provide a video showing the physical circuit passing basic bench tests (demonstrating Peltier cooling, PWM fan throttling based on heat, and battery fast-charging).
Projekt-ID: 40274539
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7 freelancere byder i gennemsnit ₹5.857 INR på dette job

As breadboard wiring and circuit diagram, firmware. I will show you the display shiwing temperature.
₹7.000 INR på 7 dage
5,3
5,3

Please review my portfolio first — it includes ESP32-based embedded systems, sensor interfaces, and battery-powered prototypes. I understand the goal: building a **breadboard prototype** around the **ESP32 SuperMini** to control a micro Peltier module with fans, temperature sensing (DS18B20), OLED display, rotary encoder input, and LiPo battery power with charging. I will wire the full circuit, implement **C++ firmware** to display **Target Temperature and Battery %**, and allow the **EC11 rotary encoder** to adjust the setpoint. The control logic will implement **PWM-based thermal regulation**: full power when temperature is above target, then smoothly reducing PWM to maintain ~25°C efficiently while saving battery. Once complete, I will provide **clean wiring documentation, the firmware source code, and a video demonstrating the working prototype** (cooling behavior, PWM fan control, temperature regulation, and charging function). Ready to proceed.
₹11.500 INR på 7 dage
3,4
3,4

Hello, With a strong and diverse background in circuit design and electrical engineering, I bring over 15 years of experience as a hardware and firmware expert to the table. My team and I specialize in strategizing end-to-end hardware solutions, which makes me an ideal candidate for your project. Over the years, I've developed deep expertise using microcontroller platforms like Arduino, ESP32, and STM32 and have mastered development environments including Altium, STM32CubeIDE, and ESP-IDF. With this expertise, wiring your circuit on a breadboard would be second nature to me. Display logic writing is a prime aspect of this project and something that I am accomplished in. Utilizing C++, I can create the desired firmware that displays "Target Temp" and "Battery %" effectively on your OLED, allowing the rotary dial to adjust the target temperature. In addition to this, my acute understanding of smart inverter logic ensures I can program the system optimally for efficient Peltier control at various temperatures with gradual adjustments in power levels. Meeting these requirements won't be just meeting targets for me; it will be ensuring every intricate aspect functions exactly as intended. Lastly, I understand how important deliverables are for you. To address your concerns thoroughly, I will provide you with not only a fully functional circuit with exquisite bench tests demonstrations but also a detailed video showcasing every function Thanks!
₹1.500 INR på 2 dage
0,0
0,0

Hi dear i have read your project discription and it would great for me to build your project.I have good knowledge about the prototyping on bread board and integrtion of components with strong background in embedded system.i have done same like projects on different freelancing platforms improving my skills and expertise in Embedded Systems, C++ Programming, and Electrical Engineering. I am well-versed in wiring and assembling circuits on breadboards, including various components (that you've mentioned) like ESP32 SuperMini, Micro Peltier Module (TEC1-04903), blower fans, MOSFET, Fast Charge Module, temp sensor, and OLED displays. Regarding the C++ firmware development for the display logic and Smart Inverter Logic involving PWM control for optimal heat regulation and battery life, my extensive experience in bare-metal firmware development is a perfect match. I ensure high-quality software code that precisely meets your requirements. Moreover, I have used Proteus for circuit simulations which will help me test and validate your project effectively.
₹4.000 INR på 7 dage
0,0
0,0

Hello there, I read about project on internal temperature control using ESP32 super mini, micro peltier module, blower fans etc showing batttery charge and temperature on OLED display. I am a firmware developer haviing extensive experience with ESP32 and and OLED. I will help you complete this project on deadline with quality. Kindly connect and discuss details. Thank You Regards,
₹5.000 INR på 15 dage
0,0
0,0

Experienced: "Result-driven Software Developer with 5+ years of experience in designing, building, and maintaining scalable web applications. Proficient in Python, Java, and AWS, with a proven track record of optimizing application performance by 40%". Junior/Entry-Level: "Highly motivated Software Developer with a strong foundation in Object-Oriented Programming (OOP), data structures, and Agile methodologies. Experienced in full-stack development using React and Node.js, aiming to contribute to innovative software solution
₹7.000 INR på 7 dage
0,0
0,0

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