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I need a series of Shelly scripts that will let me automate my lights while still giving me instant control from both the Shelly mobile app, Home Assistant and the existing momentary wall switch. The core idea is simple: whenever the wall switch is tapped, the light should toggle immediately, and that new state must stay perfectly in-sync with what the Shelly app and Home Assistant report. Likewise, any change triggered from either app must update the physical relay state without noticeable delay. I would like the code written in Shelly’s built-in JavaScript environment, making full use of the device’s local APIs (WebSocket, REST or MQTT—whichever is most robust) so everything runs locally even if the cloud is unavailable. I’m also preparing to migrate my setup to Matter, so please structure the logic in a way that will be easy to expose through a Matter bridge later. Deliverables • Well-commented Shelly script file(s) ready to paste into the web interface • Brief README explaining installation, required device settings, and where to adjust parameters (GPIO pins, delays, debounce, etc.) • A short test plan I can follow in Home Assistant to confirm that state stays synchronized across the switch, the Shelly app and Home Assistant dashboard Once it’s installed I should be able to power-cycle a device, hit the switch or the app, and always see the same on/off state everywhere with no loops or race conditions.
Projektin tunnus (ID): 40244845
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54 freelancerit tarjoavat keskimäärin €143 EUR tätä projektia

Hi, Shelly Scripted Lighting Control "", We provide complete frontend to backend development with clean, scalable, and high-performance solutions tailored to your requirements. Our experienced team ensures modern UI/UX, secure architecture, smooth functionality, and full support until successful deployment. Let’s build a reliable and impactful product together. Regards, Muhammad Abdullah
€140 EUR 7 päivässä
7,1
7,1

As a team with over 12 years of experience, my colleagues and I at CodeNomad are well-versed in automation and software architecture, making us highly qualified to fulfill your need for Shelly scripts. Our skills extend to both Node.js and Javascript which aligns perfectly with the specifications you outlined requiring code written in Shelly's JavaScript environment using their local APIs. Moreover, our extensive experience ensures that the scripts we deliver will not only sync seamlessly between the Shelly app and Home Assistant as you like but also remain unaffected by power cycles or network interruptions with no loops or race conditions. What sets us apart from others is not only our technical proficiency but also our adaptability. We understand that you plan to migrate your setup to Matter in the future so we have strategies in place to structure the logic now, making it easy to expose through a Matter bridge later on. This means the scripts we create for you won't just solve your current needs but will be forward-compatible with your future plans. We also understand how critical communication and organization are for successful project delivery. I am fully available and offer flexible work timing across different time zones. Thanks....
€250 EUR 7 päivässä
6,7
6,7

Hey, This is a fun one - I've done similar automations with Shelly devices and Home Assistant before. Keeping everything in-sync between physical switches, apps, and HA can get tricky but it's totally doable with the right event handling. I'll build the scripts using Shelly's JavaScript runtime and wire up the local APIs (probably MQTT for HA integration, WebSocket for real-time app sync). The key is making sure state changes from any source trigger the same update logic so nothing gets out of sync. For the Matter migration path, I'll keep the script modular - separating the core toggle logic from the communication layer makes it way easier to swap in a Matter bridge later without rewriting everything. What you'll get: * Well-commented JS scripts ready to drop into Shelly's web interface * Clear README with setup steps and troubleshooting tips * Test instructions to verify everything stays synced * Notes on the Matter-friendly structure I can knock this out in 3-4 days. Let me know which Shelly model you're using so I can reference the right API docs. - Usama
€230 EUR 4 päivässä
6,1
6,1

Hi there, I understand you need local Shelly JavaScript scripts that keep the wall switch, Shelly app and Home Assistant perfectly in sync with instant toggle behavior , I can deliver robust, loop-free local logic ready for future Matter bridging. - Deliver Shelly .js script(s) using local WebSocket/REST/MQTT with debounce and state reconciliation - Provide a concise README with installation steps, device settings, GPIO and parameter adjustments - Supply a step-by-step Home Assistant test plan to verify no race conditions after power-cycle Skills: ✅ Shelly ✅ Home Assistant ✅ JavaScript scripting ✅ REST API / MQTT integration ✅ WebSocket state reconciliation & race-condition prevention ✅ Local-first automation design for Matter-ready bridging Certificates: ✅ Microsoft® Certified: MCSA | MCSE | MCT ✅ cPanel® & WHM Certified CWSA-2 I can start immediately and deliver the scripts, README and test plan within 24 hours. Which Shelly model(s) are you using (e.g., Shelly 1, 1PM, Plus) and which GPIO is wired to your momentary wall switch? Best regards,
€102 EUR 1 päivässä
5,1
5,1

Hello!!! I HAVE ALREADY WORKED ON SIMILAR TYPE OF PROJECT OPEN CHAT WINDOW I WILL SHARE MY WORK. With 7+ years in home automation and embedded scripting, I’ve built reliable Shelly and Home Assistant integrations using local APIs, MQTT, and WebSocket without cloud dependency. I can ensure instant toggle response with perfect state sync and no race conditions. Which Shelly model and firmware version are you using? Do you prefer MQTT or pure local REST/WebSocket for Home Assistant integration? What I offer: ⭐ Clean, well-commented Shelly JavaScript scripts ⭐ Reliable local sync logic using REST, WebSocket, or MQTT ⭐ Debounce and loop-prevention handling for momentary switches ⭐ Systemd-safe logic to maintain state after power cycles ⭐ README with setup steps and adjustable parameters ⭐ Structured code ready for future Matter bridge exposure My approach: Map current wiring and HA integration method. Implement event-driven sync logic with race-condition control. Provide testing checklist to validate state consistency across all interfaces. Let’s discuss your setup and get this running smoothly. Best Regards, Shaiwan Sheikh
€110 EUR 10 päivässä
5,0
5,0

Hi, We would like to grab this opportunity and will work till you get 100% satisfied with our work. We are an expert team which have many years of experience on Mobile App Development, Software Architecture, Test Automation, MQTT, Home Automation, Installation, Scripting, Automation, API Development, REST API I will share with you my recent work in the private chat due to privacy concerns! Best Regards. Abdulhamid
€250 EUR 7 päivässä
4,4
4,4

Hello, Greetings , Good afternoon! I’ve carefully checked your requirements and really interested in this job. I’m full stack node.js developer working at large-scale apps as a lead developer with U.S. and European teams. I’m offering best quality and highest performance at lowest price. I can complete your project on time and your will experience great satisfaction with me. I’m well versed in React/Redux, Angular JS, Node JS, Ruby on Rails, html/css as well as javascript and jquery. I have rich experienced in Mobile App Development, Installation, Automation, Software Architecture, MQTT, API Development, Home Automation, REST API, Test Automation and Scripting. For more information about me, please refer to my portfolios. I’m ready to discuss your project and start immediately. Looking forward to hearing you back and discussing all details.. Looking forward to serve you
€155 EUR 5 päivässä
3,9
3,9

Hi, As per my understanding: You need Shelly-native JavaScript scripts that ensure instant, loop-free state synchronization between the physical momentary switch, Shelly relay, Shelly app, and Home Assistant. The logic must run fully local (REST/WebSocket/MQTT), survive power cycles, avoid race conditions, and be structured for future Matter bridge exposure. Implementation approach: I will design an event-driven script using Shelly’s local RPC/WebSocket APIs with a single source-of-truth state controller. Hardware input events (GPIO) will trigger immediate relay updates with debounce protection. App or HA changes (via MQTT/CoIoT/WebSocket) will update relay state through guarded handlers that prevent feedback loops. State persistence will use device storage to restore correct status after reboot. Logging hooks will assist diagnostics. The code will be modular, clearly commented, and configurable (GPIO, debounce, topics). I will include a concise README plus a step-by-step HA validation test plan to confirm sync integrity across all control paths. A few quick questions: Which Shelly model(s) are you using? MQTT or native CoIoT for HA integration? Single-gang or multi-relay setup? Do you require dimming support later?
€125 EUR 5 päivässä
3,9
3,9

Hello, I’d be happy to help you build a clean, reliable Shelly scripting setup that keeps your wall switch, Shelly app, and Home Assistant perfectly synchronized — with instant response and no race conditions. I have experience working with Shelly’s built-in JavaScript environment (Gen2/Plus devices), local RPC APIs, MQTT, and Home Assistant integrations. I understand the importance of maintaining a single source of truth for state while preventing feedback loops between physical inputs and software-triggered changes. Here’s how I would approach your project: • Implement event-driven logic using Shelly’s local APIs (RPC/WebSocket) so everything runs fully locally • Use proper state change listeners instead of polling to guarantee instant response • Add debounce handling for momentary switches to prevent false triggers • Design the script to separate input events from relay state management to avoid loops • Structure the logic cleanly so it can later be exposed through a Matter bridge without refactoring core behavior • Ensure correct state publishing (via MQTT or native integration) so Home Assistant always reflects the true relay state I’m ready to get started and can deliver a clean, maintainable solution. Looking forward to working with you.
€120 EUR 5 päivässä
3,7
3,7

I can design reliable Shelly scripts that automate your lighting while preserving instant manual control, exactly as you’ve described. This includes clean logic for schedules, events, and conditions so your lights behave intelligently without feeling restricted or unresponsive. I’ve worked extensively with Shelly devices, custom scripting, and REST/MQTT integrations in real homes and small commercial spaces. That experience helps avoid common pitfalls like delays, race conditions, or scripts that break when you change hardware or scenes later. My approach would be to map your desired behaviors room by room, implement modular scripts on each Shelly, then test edge cases like power loss, manual overrides, and mixed switch use. I’ll also keep the scripts readable so you can adjust them in the future. I would love to chat more about your project! Regards
€140 EUR 7 päivässä
3,9
3,9

Hello, I'm a JavaScript developer with over 10 years of experience in automation and home control systems. We'll discuss the details in a chat. I specialize in creating efficient scripts that ensure immediate control and synchronization across multiple interfaces. For your project, I will write well-commented scripts tailored for the Shelly environment, ensuring smooth operation even if the cloud services are down. Option A: The script will directly toggle the light state upon wall switch activation, updating both the Shelly app and Home Assistant immediately. Option B: The script will implement additional logging to track changes, providing you with insights on the activation sequences. I will also deliver a README file for easy installation and a testing plan to confirm synchronization across all platforms. This ensures that whether you use the switch, the app, or Home Assistant, the state remains perfectly in sync. Best, Yurii
€155 EUR 1 päivässä
2,8
2,8

Hi, Alex here, I am available to start right away. I've read your project details carefully, and it aligns well with my experience in automation scripting, device‑level API control, and home‑automation system integration. Over the 9 years, I’ve successfully built and optimized systems using JavaScript scripting, MQTT, REST APIs, Home Automation workflows, software architecture, and test automation, always focusing on reliability, clean logic, and smooth integration across multiple controllers. For your project, I would write Shelly scripts that keep the relay state perfectly synchronized across the wall switch, the Shelly app, and Home Assistant, using local APIs and event listeners to avoid loops or delays. The logic would be structured so it can later be exposed through a Matter bridge without major changes. I’m a fast communicator and a reliable professional. I hope to work with you. Sincerely, Alex
€140 EUR 7 päivässä
2,9
2,9

Having worked extensively with PHP, Node.js, and REST API's, I am no stranger to building applications that need to remain perfectly in-sync even under complex circumstances. Home automation scripts hold a special place in my heart, as they require not just robust backend functionality, but also a high degree of user-friendliness and ease of installation - both aspects I prioritize deeply while coding. I fully understand your requirements and will be adept at creating well-commented Shelly scripts tailored for your specific use case. With a keen eye for detail, I ensure code comprehensibility by leaving no stone unturned - from brief READMEs providing installation instructions to precisely denoting parameters like GPIO pins, delays, and debouncing in the script itself. Client satisfaction is my north star; hence I take thoroughness seriously. As part of the deliverables, you can expect a concise but comprehensive test plan to follow within Home Assistant environment to validate the flawless synchronicity of your light controls across different interfaces. Trust me with your Shelly Scripted Lighting Control project and embargo the worries of duplicated states or frustrating delays as I implement logic that'll confer effective control over your lights while visualizing any change instantaneously on all platforms.
€150 EUR 3 päivässä
2,5
2,5

⭐⭐⭐⭐⭐ ✅Hi there, hope you are doing well! I have successfully developed Shelly scripts for smart lighting automation that ensure intuitive toggle control with real-time state sync between wall switches, mobile apps, and home automation platforms like Home Assistant. The key to this project’s success is handling immediate toggle response and flawless synchronization of device states through local APIs to avoid delays or inconsistencies. Approach: ⭕ Use Shelly’s local JavaScript environment to write lightweight scripts leveraging WebSocket and REST APIs for reliable communication. ⭕ Implement state management logic ensuring instant switch toggling while syncing with Shelly app and Home Assistant. ⭕ Design the code modularly for easy future integration with Matter bridges. ⭕ Include robust debouncing and delay parameters configurable via script comments. ⭕ Provide a concise README and test plan focusing on installation and validation of state consistency across platforms. ❓Could you please specify which Shelly model you are using and any preferred communication protocols (MQTT, REST, WebSocket) you favor for local integration? I’m confident I can deliver a clean, well-documented solution that maintains perfect synchronization without race conditions, ready for your migration to Matter. Thanks, Nam
€200 EUR 3 päivässä
2,4
2,4

✅✅✅✅✅ Only Perfection 100% && Even 99.99% Isn’t Enough For Me. ✅✅✅✅✅ From developing AI-powered applications to building robust, scalable microservices, I am Joel - your best candidate for this project. With 8+ years of professional software development experience, I have the expertise you need to bring your Shelly Scripted Lighting system to life. In particular, my specialization in event-driven architecture and real-time messaging using MQTT aligns perfectly with your requirements. To ensure perfect synchronicity between the wall switch and your mobile app/Home Assistant, I'll structure the logic using Shelly's built-in JavaScript environment and its local APIs like WebSocket, REST, or MQTT. This way, even if the cloud is unavailable, your lighting automation won't miss a beat. Moreover, as you prepare for a migration to Matter, I'll future-proof the design by making it easily compatible with a Matter bridge. Throughout this project, I'll deliver well-commented scripts, a comprehensive README file for easy installation and customization of parameters, and a test plan so that you can confirm everything is functioning at peak performance in Home Assistant. Let's create a seamless and harmonious lighting control setup together!
€55,55 EUR 7 päivässä
2,4
2,4

Hello — this is exactly the kind of deterministic device-side automation I build. You need a race-free Shelly script where the wall switch, relay, Shelly app, and Home Assistant always reflect the same state with zero perceptible delay. I’ll implement an event-driven JS script using the local Shelly APIs (preferring native events + optional MQTT/WebSocket) to avoid polling, eliminate feedback loops, and keep everything fully local and Matter-ready. Approach Edge-triggered input handling with debounce Single source of truth = relay state Event subscriptions for instant sync Loop-protection guard Clean parameter block for GPIO/delays Matter-bridge friendly structure I recently built a similar local-first automation stack for smart relays with Home Assistant + MQTT. Questions Which Shelly model(s)? Using detached or edge switch mode? MQTT enabled in your HA setup? Timeline: 2 days Budget: €120 Looking forward to hearing from you. Thank you.
€120 EUR 2 päivässä
2,1
2,1

Hello, I will develop a series of Shelly scripts to automate your lighting system while ensuring seamless control through the Shelly app, Home Assistant, and your wall switch. The core functionality will focus on immediate toggling of the lights with perfect synchronization across all interfaces. I have extensive experience in IoT automation, having implemented similar solutions that integrate local APIs like WebSocket and MQTT to maintain functionality even without cloud access. To achieve your requirements, I will: 1. Use Shelly’s JavaScript environment to create robust scripts that handle instant state updates across devices. 2. Implement logic to ensure any change in the wall switch or app reflects immediately on all platforms, avoiding race conditions. 3. Design the code structure to facilitate a smooth transition to Matter in the future. To clarify, could you specify which GPIO pins you plan to use for the wall switch? Additionally, do you have any specific debounce settings in mind? Lastly, would you prefer using MQTT or WebSocket for this implementation? I’m ready to start immediately. Let’s ensure your lighting system works flawlessly.
€30 EUR 7 päivässä
1,8
1,8

❤️ Budget: €220 fixed Deadline: 5 days I understand you need Shelly scripts that keep the wall switch, Shelly app, and Home Assistant perfectly in sync — fully local, no cloud, no loops, no delays, stable even after power cycles. Also structured for future Matter migration. My solution: • Event-based local logic (WebSocket / RPC or MQTT) • Clean toggle handling with debounce • No race conditions or feedback loops • Auto state check on reboot • Modular structure for Matter bridge later Deliverables: • Commented Shelly script file(s) • Short README (setup + adjustable parameters) • Simple Home Assistant test plan I have experience with automation systems, MQTT/API integrations, and stable state management logic. Confident and ready to start immediately. Best, Nathalie
€220 EUR 5 päivässä
1,8
1,8

Hello, thanks for posting this project. Your requirements for seamless, real-time sync between your existing wall switch, the Shelly mobile app, and Home Assistant are clear and compelling. I have significant experience designing robust Shelly scripts using its native JavaScript automation, leveraging both REST and local MQTT/WebSocket APIs for ultra-low-latency communication and reliability, all while focusing on local-only control with no cloud dependencies. I will deliver well-structured, fully commented Shelly script(s) designed for easy migration to Matter in the future, along with a concise README and straightforward Home Assistant test procedures. The code will be parameterized for easy adjustment and will prioritize state accuracy and prevention of feedback loops. Could you confirm which specific Shelly device models and firmware versions you'll be using, so I can tailor the scripts precisely?
€140 EUR 1 päivässä
1,1
1,1

❤️ Hello. I hope you are doing well. This project is quite similar to the one I’ve just finished. I can create robust Shelly scripts that give you instant light control via your wall switch, the Shelly app, and Home Assistant—fully local, no cloud dependency. My solution will: ✅ Toggle the light immediately on wall switch press while keeping the state perfectly synced across all platforms. ✅ Use Shelly’s JavaScript environment and local APIs (WebSocket, REST, or MQTT) for reliable, low-latency operation. ✅ Be structured to simplify future Matter integration. ✅ Include well-commented scripts, a clear README for installation and configuration, and a concise test plan for Home Assistant. I focus on clean, maintainable code and thorough testing to avoid loops, race conditions, or sync issues. Thank you for reading.
€30 EUR 5 päivässä
0,9
0,9

Hamburg, Germany
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₹12500-37500 INR
€30-250 EUR
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$15-25 USD/ tunnissa
$750-1500 USD
$30-250 USD
£250-750 GBP
₹12500-37500 INR
$8-15 USD/ tunnissa
₹12500-37500 INR
$750-1500 USD
$15-25 USD/ tunnissa
$15-25 USD/ tunnissa
€3000-5000 EUR
€30-250 EUR
$30-250 USD