ESP32 Thermostat Control Bridge

@LiveExperts

With over x years of experience in C++ Programming, Circuit Design, Electrical Engineering, Electronics, Embedded Systems, Microcontroller, and Wireless technology, I am highly suited to build and test your ESP32 Thermostat Control Bridge. My team at Live Experts consists of seasoned professionals that leave no room for mediocrity. Our primary focus is transforming client ideas into functional solutions while ensuring their satisfaction with our final product. We have a strong track record of successful projects that bear similarities to yours. We've developed HVAC control systems with reliable relay switching using wireless links such as ESP-NOW protocol, making us well-versed in the technology your project demands. Additionally, our grasp on analog electronics and signal reading will support our creation of robust units capable of transmitting those signals wirelessly between your Brivis 1F83C-11PRBR programmable thermostat and the heater. Given my background in engineering, I am perfectly positioned to explain the construction process to a non-specialized audience clearly. My knowledge of Arduino IDE (C++) is top-notch. Therefore you can be confident the code written for your devices will be properly commented and made available as source files which are essential for easy troubleshooting when required. Furthermore, Melbourne-based myself; I can guarantee better communication and more efficient coordination throughout the project. Let us give life to your vision!

@amelectronics

I am a skilled and reliable Embedded Systems Engineer with over 6 years of hands-on experience in Arduino, ESP32/ESP8266, and microcontroller-based development. I specialize in designing efficient, stable, and scalable embedded solutions, turning ideas into fully functional hardware-software systems. I have a strong background in electronics, sensors, communication protocols (UART, I2C, SPI, MQTT, WiFi, BLE), and real-time embedded systems. My development approach focuses on clean, well-structured, and well-documented firmware, ensuring long-term reliability and easy maintenance. I also provide thorough testing, debugging, and performance optimization, including power efficiency improvements where required. I am a detail-oriented engineer with strong problem-solving skills and extensive experience in hardware debugging and firmware optimization. Beyond technical expertise, I value clear communication, meeting deadlines, and maintaining high client satisfaction. I work closely with clients to fully understand project requirements and deliver high-quality results. Pricing is flexible and can be discussed based on project scope and complexity. I am open to both short-term and long-term projects. Let’s work together to build a professional, reliable, and efficient embedded system for your needs.

@macroenergy

As an experienced Electrical Engineer with an emphasis on Digital Motor Control, I am confident that I am the perfect fit for your ESP32 Thermostat Control Bridge project. My background in analog design closely aligns with your need for proper optocoupler interfacing and reading of the 24VAC signal. Additionally, my extensive experience in electronic design will ensure that both units are sturdily constructed and bench-tested together before delivery. Notably, my previous projects strongly catered to this line of work, including HVAC control, relay switching as well as esp-now based wireless links. This impressive range has made me highly adapt in the areas of your exact requirement. Importantly, it recruits various areas of my skill set such as C++ Programming, Circuit Design, and Embedded Systems all of which come into play in your descriptive tasks. Your preference for a Melbourne-based freelancer also works in my favor as I am located locally. Choosing me will enable easy handover and quick walkthroughs whenever necessary - providing utmost convenience from start to finish. As a consummate professional, I guarantee the production of well-commented Arduino IDE (C++) codes that will be provided to you as source files. Plus, if you prioritize fixed prices, it aligns perfectly with my approach to invoicing; no hidden charges only seamless transactions. In summary, I have both the skills and location advantage-choose me.

@cpp2048

I am not applying for this job as you have specifically mentioned you are looking for someone from Australia. However, I am here just to share some idea. As the requirement is P2P type, hence it's better to use low cost ISM band RF link with a controller. nRF24L01 is something that you can use efficiently and there is a version comes with LNA which can cover upto 1.1Km in free air and better range coverage when used in indoor. This is small packet based communication system so the power efficiency, ease of use and the range everything will be better.

@engrusmanfaiz

Your key issue is safely bridging a 24VAC thermostat signal wirelessly with fail-safe behavior; I will design and build a reliable ESP32-based ESP-NOW link with protected input sensing and robust relay control. I will implement a PC817 optocoupler front-end for safe W/R detection and a properly isolated relay stage on the receiver. Firmware will include state-change transmission plus heartbeat every 60s and fail-safe relay drop after 120s signal loss. Both units will be fully bench-tested together to ensure stable communication and zero false triggering. Code will be clean, well-commented Arduino IDE C++ for easy understanding and future modification. I have solid experience with ESP32, ESP-NOW, relay control, and industrial signal interfacing. Similar wireless control and HVAC-style switching systems have been successfully implemented. Parts can be supplied by me or sourced by you; I can provide an exact BOM. Timeline: 3–5 days for build, test, and delivery-ready system. Best regards, Engineer Muhammad

@markoa7

Having delved extensively into the realms of firmware and hardware development, I bring over eight years' worth of solid experience to the table for your ESP32 Thermostat Control Bridge project. One of my core strengths lies in working with the ESP32 and its IDE- which involves elements like wireless connectivity such as WiFi and BLE similar to your project, that would help us effectively bridge your thermostat and heater units without needing a cumbersome wire setup. I have prior experience with HVAC control, relay switching, and wireless connections, all aspects you've specified. Moreover, being Melbourne-based- as you stipulated is strongly preferred - we can conveniently establish a close rapport that will propel this project forward smoothly. Deadlines are sacrosanct to me; I assure you of timely delivery of bench-tested units with a detailed source code both documented and well-commented. As for the parts procurement- it's flexible; if suitable for you we can source them along or work based on your preference and invoice accordingly – ultimately let's make this a stress-free experience.

@umg536

Hello, With extensive experience in C++ programming, Circuit Design, Electrical Engineering, Electronics, Embedded Systems, Microcontroller programming, Wireless communication and a long list of satisfied customers, I am confident I can deliver exactly what you are looking for with your ESP32 Thermostat Control Bridge project. I have worked on similar embedded systems projects, and specifically with HVAC control, relay switching and wireless communication such as the ESP-NOW protocol. I can leverage these skills for the development of both sender and receiver units that will wirelessly bridge your Brivis Buffalo ducted gas heater to the programmable thermostat. I work with precision and efficiency ensuring that tasks like optocoupler interfacing and reading 24VAC signals will be executed properly. As an added value, I am skilled at explaining technical concepts clearly to non-experts. For us to nail down this project effectively, I am open to sourcing the parts or let you buy them according to my recommendations Thanks!

@hayteekeys

HI, KINDLY READ THROUGH MY PROPOSAL I will deliver two fully built, bench-tested ESP32 wireless bridge units (sender with PC817 optocoupler + receiver with 5V relay) using ESP-NOW for your Brivis Buffalo heater and 1F83C-11PRBR thermostat — including heartbeat/watchdog fail-safe, well-commented Arduino C++ code, schematics, and Melbourne handover + walkthrough. MY APPROACH
✅ Phase 1: Final schematic/BOM, firmware (ESP-NOW, optocoupler reading, relay control, 60 s keepalive, 2 min timeout) — 3 days.
✅ Phase 2: Assemble both units on stripboard, full bench test with 24 VAC simulation, code handover and on-site walkthrough — 4 days.
✅ Provide source files, test report and clear non-expert instructions. RELEVANT PROJECTS
• ESP-NOW wireless thermostat-to-ducted-heater bridge (Brivis-compatible, optocoupler sender + relay receiver with heartbeat fail-safe — built, tested and handed over in Melbourne) DELIVERABLES
• 2 complete working ESP32 units (assembled & tested)
• Full commented Arduino IDE source code
• Wiring/schematic documentation + test report
• Melbourne handover + live walkthrough Fixed price: $680 AUD (I can supply all parts and invoice you, or you can source them). QUESTIONS 1 Confirm you will provide the exact thermostat/heater for final testing? 2 Preferred start date for Phase 1? 3 Shall I supply parts or do you want the BOM only? Ready to start immediately.

@majeed219

As an Embedded Systems Engineer specializing in ESP32 / Arduino IDE development, I believe I am uniquely qualified to tackle this intriguing thermostat project. With robust competencies in ESP-NOW, analog electronics, and relay module wiring, I can expertly build and test the sender and receiver units you require. Additionally, I have experience working on HVAC control systems like yours which lends me valuable insights into its unique demands. My extensive involvement in similar projects involving relay switching and wireless links allows me to provide not only a quality circuit design but also reliable and well-commented code that is easily navigable for your future ease of use. What's more, my history of microcontroller-based projects ensures that the heartbeat/watchdog functionality you need will be implemented seamlessly. Sourcing parts is not an issue; however, should you prefer to purchase them yourself, I understand that. Client satisfaction reigns supreme for me, so I'm happy to adapt to your requirements. Nonetheless, let's explore the option of a fixed price arrangement for convenience on both ends. Oh, and did I mention? Post-completion support and maintenance are gratis. Let's bring your thermostat into the 21st century together - efficiently and effectively!

@Muhammadzeesha59

Hello Sir/Mam As a seasoned Electrical and Embedded System , I believe that I can bring the virtual reality in your project , I have 100% Grip on C/Embedded , C++ , and Python , I am also well versed in ARM Cortex M3/M4 Architecture , Also have Extensive Experience with MICROCONTROLLERS , Atmega 32, STM32,Yocto ESP32 ,TM4C . I have a great Grip on ARDUINO , MATLAB , PCB LAYOUT and IOT Applications . My ability to deliver exceptional results on time and with at most quality . Please come on chat to discuss more about project. I will be waiting for your response. Thank you !

@hayat38402

Hi, how are you doing? I went through your project description and I can help you in your project. your project requirements perfectly match my expertise. We are a team of Electrical and Electronics engineers, we have successfully completed 1000+ Projects for multiple regular clients from OMAN, UK, USA, Australia, Canada, France, Germany, Lebanon and many other countries. We are providing our services in following areas:  Antenna Design (CST, HFSS)  Embedded C Programming.  VHDL/Verilog, Quartus/Vivado, LabVIEW/ Multisim/PSPICE/VLSI  MATLAB/SIMULINK  Network Simulator NS2/NS3  Microcontroller like Arduino, Raspberry Pi, FPGA, AVR, PIC, STM32 and ESP32.  IDEs like Keil MDK V5, ATmel studio and MPLab XC8.  PLCs / SCADA  PCB Designing Proteus, Eagle, KiCAD and Altium  IOT Technologies like Ethernet, GSM GPRS.  HTTP Restful APIs connection for IOT Communications. Also, we have good command over report writing, I can show you many samples of our previous reports. Kindly consider us for your project and text me so that we can further discuss specifically about your project's main goals and requirements.

@Feriver

Hello I understand you need a reliable ESP32-based wireless bridge to replace the W/R wiring between your thermostat and Brivis heater, with safe signal sensing, robust ESP-NOW communication, and fail-safe operation. I will build two units: a sender using an ESP32 with a properly isolated PC817 optocoupler circuit to detect the 24VAC call-for-heat signal, and a receiver using an ESP32 with a relay module to replicate the W/R closure at the heater. The firmware will use ESP-NOW for low-latency, peer-to-peer communication, including state-change transmission and a heartbeat every 60 seconds with watchdog logic to force relay OFF if signal is lost. The design will prioritize electrical safety (proper isolation, resistor sizing, and signal conditioning), stable wireless pairing, and clean, well-commented Arduino IDE code. I will fully bench-test both units together to confirm zero false triggers, reliable switching, and correct fail-safe behavior before delivery. Deliverables include complete source code, wiring diagrams, parts list, and a simple walkthrough so you can confidently install with your electrician. I can guide parts sourcing or supply components as needed. Thanks, Asif

@ducthodg

With a decade of professional experience under my belt, I'm confident that my technical skills and engineering background make me an ideal candidate for your ESP32-based thermostat control bridge project. While my area of expertise primarily lies in trading algorithms, I'm well-versed in various programming languages including C++ and have even used Arduino IDE for several similar projects. I've successfully developed and implemented numerous systems involving relay switching and signal reading, which aligns perfectly with the requirements outlined in your project. On top of that, I also have hands-on experience with wireless links such as ESP-NOW, making me competent to tackle the wireless bridge aspect of your problem. As far as sourcing parts is concerned, I can recommend quality components for purchase or include them in my service and invoice you accordingly. My aim is to provide you with a fixed price that reflects both value for money and manageable project costs on your end. Additionally, to give you a sound estimate for completion based on your timeline expectations please let me know when you would foresee the start date perfect for your proposal.

@shadabkhan92

As a seasoned professional in both the software and hardware fields, I can confidently say that your project is right up my alley, despite my lack of HVAC-specific experience. Over my career, I’ve built several systems which involve bridging and wireless communication protocols, like the one you need – one notable example being the integration of AI autonomous agents with LLM pipelines. I believe my expertise in Odoo ERP, MQTT-connected sensor networks, and the mobile and web stack sets me apart from others as it demonstrates my ability to pair different technologies together harmoniously - just like what you need for this project. Regarding your timeline, I understand the importance of sticking to a schedule. I will ensure that your project is given my utmost attention and completed in a timely manner without sacrificing quality. In terms of parts sourcing, I am flexible – whatever works best for you works for me. If required, I'll be happy to leverage my proven supplier network to swiftly source all necessary items or if you have any specific preferences, let's discuss those. Of course, confidentiality in such projects is crucial. Rest assured that your intellectual property is safe and secure with me; upheld by our strong reputation for practicing ethical business conduct throughout all aspects of our work. So if you’re looking for a skilled professional who can combine hardware and software seamlessly to give life to truly unique projects like yours, look no further!

@nabeelraza1993

Building a reliable wireless thermostat bridge requires safe 24VAC interfacing, robust ESP-NOW communication, and fail-safe control logic to ensure the heater behaves predictably in all conditions. Well what I can do for you as Electronics engineer with 8+ years of experience is design and build both ESP32 units i.e. a sender with optocoupler-based 24VAC sensing and a receiver with relay control. I will be implementing stable ESP-NOW communication, heartbeat logic, and clean hardware wiring so the system operates noise-free and safely. In fact, I’ve developed multiple embedded control systems involving ESP32, relay interfacing, signal conditioning, and wireless communication, along with hardware prototyping and testing workflows, so delivering a fully working, bench-tested solution with clear Arduino code, proper component selection, and an easy-to-follow explanation fits directly within my practical engineering experience.

@tetianam8

⭐⭐⭐⭐⭐ I’ve read your setup carefully—this is a wireless thermostat bridge using ESP32 + ESP-NOW, and the critical parts are 24VAC-safe sensing, reliable fail-safe relay behavior, and deterministic link loss handling (so heating never gets stuck ON or OFF). I’ve built similar ESP32 systems involving ESP-NOW peer links, optocoupled AC inputs, and relay-based HVAC / industrial switching logic, where safety + signal integrity matter more than throughput. Proposed solution: • Sender: ESP32 + PC817 optocoupler safely detects W/R 24VAC call-for-heat state • Receiver: ESP32 + opto-isolated relay module switches W/R at heater side • ESP-NOW direct peer link (no router dependency) • Heartbeat every 60s + watchdog timeout (2 min failsafe → relay OFF) • Debounced state logic to avoid relay chatter • Arduino C++ firmware, fully commented and modular Safety design focus: • Isolation between 24VAC and ESP32 logic via optocoupler • Fail-safe OFF state on signal loss • Watchdog logic tested under packet drop simulation Deliverables: • 2 working bench-tested ESP32 units • Complete Arduino source code • Wiring diagram + component values • Assembly notes for electrician handoff • Short walkthrough documentation Timeline: ~5–7 days (including bench testing and reliability validation) Quick question: do you want relay click-only switching, or should I design it for a silent SSR option (more durable for HVAC use)?

@electronicsdone

Best ESP32 Wireless Thermostat Bridge Developer! ⭐⭐⭐⭐⭐ Dear Client, The biggest risk in this project is not sending a thermostat signal wirelessly. It is building a bridge that works in a quick demo, then fails in real use because the 24VAC sensing, keepalive logic, or fail-safe relay behavior is not handled properly. That is where careful embedded design matters. I would approach this by: 1. designing the sender around clean 24VAC detection with opto-isolation so the call-for-heat state is read safely and reliably 2. building the ESP-NOW link and receiver logic around heartbeat/watchdog behavior so loss of communication always fails safe 3. bench-testing both units together and delivering clear Arduino source plus a simple walkthrough so the final handoff is easy to understand This keeps the project focused on a bridge that is dependable, not just functional. Two quick questions: 1. Do you want the finished build on breadboard/stripboard only, or should it be mounted more cleanly for handover? 2. Would you prefer I recommend parts for you to source, or provide the full parts set myself? If you message me, I can outline the cleanest first step and how I would get this tested properly before delivery. Best regards, Prat PCB Must Innovations

@antonk52

As an experienced developer with a strong background in C++ programming and electrical engineering, I am confident in my ability to complete the task at hand. Over the years, I have completed various projects similar to this one. From HVAC control systems to relay switching tasks, I have successfully worked on many different aspects of building wireless links and bridging connections like the project you have described. One aspect that differentiates me from other freelancers is my ability to clearly explain complex processes to non-experts. This skill would be invaluable during our handover and walkthrough sessions, ensuring you have a full understanding of the finished build. Additionally, being well conversant with ESP32 / Arduino IDE development and ESP-NOW protocol use, your project will be completed with optimum professional care. On top of my technical expertise, I am known for producing high-quality and well-documented work. You can trust me to deliver source files that are thoroughly commented in Arduino IDE (C++) as per your requirements. To further alleviate any concern about remote work, note that communication and meeting project deadline are paramount to me. I encourage remote collaboration as it allows for transparency in execution and efficient troubleshooting based on the least downtime possible. Building working prototypes is both my skill and passion, so let's turn your idea into reality together.

@abdurRafiqM

HI, I am an experienced electronics and PCB Design engineer, specialised in use of ECAD software such as Altium Designer, KICAD, EasyEDA, etc. for the the design of electronics and PCB. I will design your projects to meet your Requirements and the industry standard. I do all kinds of circuits such as Power delivery circuit, Sensor Integrated Circuits, wireless control, MCUs etc. I will deliver the following. The Schematics for your Design The PCB for the design Bill of materials(If needed) Gerber, Pick and Place and other manufacturing and assembly drawings needed. Full Support and consultancy till the project is done. Kindly send me message for my previous designs and also so we can discuss further on your project I look Forward to working with you. Best Regards, Abdur-Rafiq