
Closed
Posted
Paid on delivery
I want a doorbell that greets visitors in my own words rather than a stock chime. The idea is simple: when someone presses the wired push-button out front, a short voice message I have recorded should play through an internal speaker. I would like the device to let me change that message whenever I wish—ideally by holding a record button or by uploading a small audio file—so I can cycle between holiday greetings, personalised welcomes, or even funny reminders. Because the trigger is just a standard, hard-wired bell button, please keep the electronics compact enough to mount near the chime transformer. Low-voltage power from the existing doorbell circuit is available, but I am open to adding a small DC adaptor if that simplifies things or gives cleaner audio. What I need from you • A working prototype that plays a clear, custom voice recording on each press • An easy method for me to re-record or swap messages (onboard mic, micro-SD, or any straightforward approach you prefer) • Schematics, parts list, and simple installation notes so I can reproduce or service the unit later If you already have experience with Arduino, ESP32, or dedicated voice ICs, feel free to choose the platform you trust most; reliability and audio clarity matter more to me than brand names. Let me know how you plan to tackle the power, amplification, and storage, and roughly how long you’ll need to deliver a tested unit ready to bolt onto my existing wiring.
Project ID: 40419334
11 proposals
Remote project
Active 11 days ago
Set your budget and timeframe
Get paid for your work
Outline your proposal
It's free to sign up and bid on jobs
11 freelancers are bidding on average ₹13,636 INR for this job

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.
₹10,000 INR in 7 days
7.3
7.3

Hey there! I’m Alok, A PCB, Circuit and Mechanical designer with a passion for turning ideas into rock-solid, high-performance circuit boards. even expert on Python, C, C++ 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. # 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. If you need a PCB and Code that’s efficient, reliable, and built for real-world performance, let’s chat. I’d love to help bring your project to life!
₹12,500 INR in 7 days
5.8
5.8

Hi, I can support in developing the Custom-Voice-Recording-Doorbell with a micro controller and record and playback IC. I have used similar in token display systems. Will design and develop a custom PCB and firmware development. We can discuss. Regards Senthil kumar Chennai
₹15,000 INR in 45 days
5.0
5.0

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
₹7,000 INR in 7 days
4.7
4.7

Hello, I can build a compact, reliable custom voice doorbell system that plays your own recorded message whenever the button is pressed. Here’s how I will approach your project: * Use a stable microcontroller (ESP32-based) for smooth control and future flexibility * Clear audio playback through a dedicated amplifier and speaker for good sound quality * Simple message update options: either onboard recording (button + mic) or plug-and-play microSD audio files * Clean integration with your existing wired doorbell circuit, with safe low-voltage handling * Compact design suitable for mounting near your current chime/transformer What you’ll get: * Fully working prototype (tested with real button trigger) * Circuit diagram and parts list * Easy installation and usage instructions * Option to expand later (multiple messages, scheduling, etc.) I have experience building embedded systems and custom electronics solutions, including automation and IoT-based control devices, so this project fits well within my scope. Estimated delivery time: 4-5 days for a tested prototype design and documentation. Let’s discuss your preferred recording method and finalize the design. Best regards
₹12,500 INR in 4 days
2.6
2.6

Hello, I can deliver a complete, reliable ESP32 solution that allows you to easily update the doorbell's voice message straight from your smartphone, playing it back perfectly whenever the button is pressed. What you will get: 1- User-Friendly Web Interface: A clean, responsive local webpage hosted on the ESP to easily upload and manage your audio files. 2- Robust Firmware: Highly stable ESP-IDF firmware optimized for crisp audio playback and reliable Wi-Fi operation. 3- Custom PCB Layout: A compact, easy-to-assemble circuit design that safely bridges your existing wiring with the new electronics. 4- Documentation & Support: Full schematics, simple installation notes, and reliable support after the project is complete. About my experience: -> 4 years of professional embedded development experience. -> Proven track record of designing sleek, stable web interfaces specifically for IoT devices. -> Solid background in IoT architecture and cloud integration. -> Strong commitment to delivering high-quality code with strict version management. Looking forward to working with you.
₹6,500 INR in 8 days
1.5
1.5

Hi, Your project caught my attention immediately — this is exactly the kind of embedded audio build I enjoy, and I have everything needed to deliver it cleanly. Here's how I'd approach it: ESP32 with a built-in DAC. It's compact, reliable, well-documented, and handles audio playback beautifully without needing an external audio IC. A micro-SD card module. You simply drop an MP3 or WAV file onto the card from any computer — no app, no programming needed. Want to swap your holiday greeting for a birthday message? Rename the file and you're done. I'll add an onboard microphone with a dedicated record button. Hold it for 3 seconds, speak your message, release — new greeting saved instantly. I’ll design it to work with your existing low-voltage doorbell supply, or Provide a clean DC adapter-based solution for better audio quality and stability Wired directly to your existing button of door bell. What I'll deliver: - Fully working tested prototype - Clear schematics + wiring diagram - Parts list (easy to source in India) - Simple instructions to: Change audio messages Maintain or repair the system Timeline: 7-8 days for a tested, ready-to-install unit. I've built similar ESP32 projects and I'm confident, I am new on this site , my profile might be looks dull but trust me i have experience on this types of projects. This will work reliably on the first install. Happy to answer any questions before you award the project. Looking forward to working with you!
₹5,000 INR in 7 days
0.0
0.0

Hi there, This is a great idea, and I can help you build a compact, reliable voice doorbell with clear audio and easy message updates. I’ve worked with embedded audio systems (ESP32/Arduino, DAC/amp modules), so I can design something that fits neatly into your existing doorbell setup and works consistently. My approach: * Core system ESP32-based design for flexibility and stable audio playback Trigger input from your existing wired push-button * Audio playback High-quality DAC + small amplifier module for clear voice output Compact speaker optimized for indoor mounting * Message update options (your choice) * Onboard mic + record button (press-and-hold to re-record) * microSD card for uploading audio files * Optional USB/Wi-Fi upload for easier updates * Power design Step-down from existing doorbell transformer (if stable) Or small DC adapter for clean, noise-free audio Deliverables: * Working prototype * Full schematic + wiring diagram * BOM with easily available components * Simple installation and usage guide Availability: Immediate I’ll focus on making it simple to use, compact to install, and clear in audio output. Best regards, Shuvadeep
₹7,000 INR in 7 days
0.0
0.0

Hello, to do this project, I will introduce you to a microcontroller board that you can buy and a few parts that you can put in the same box in front of the door or at home and just connect it to the speaker. You also need a microSD that works on the same board and can be done by recording any sound you want and changing it whenever you want. Finally, I will send you the codes so that you can program the board and finally the work is done. I will be with you until the project is completed and even changes in each part. Maybe we can implement better ideas with your opinion if you wish.
₹50,000 INR in 30 days
0.0
0.0

Hello, I am an Embedded Systems and Electronics developer experienced in Arduino, ESP32, audio playback modules, and compact hardware prototyping. I can develop a custom voice doorbell prototype that plays your own recorded greeting whenever the wired push-button is pressed. The system can support easy message updates using either: • Onboard microphone + record button • microSD card audio file replacement • USB upload option (depending on your preference) The prototype will be compact, reliable, and designed to work with your existing low-voltage doorbell wiring or an external DC adaptor for cleaner audio performance. I will provide complete schematics, wiring diagrams, parts list, firmware, and simple installation/service documentation so the unit can be reproduced or maintained easily. Thank you.
₹12,000 INR in 8 days
0.0
0.0

Mumbai, India
Member since May 5, 2026
$10-30 USD
€6-12 EUR / hour
₹37500-75000 INR
$250-750 USD
$250-750 USD
€6-12 EUR / hour
$2-15 USD / hour
$10-30 USD
₹1500-12500 INR
$10-1000 USD
₹600-1500 INR
$30-250 AUD
₹1500-12500 INR
$10-1000 USD
₹1500-12500 INR
₹1500-12500 INR
$45 USD
$30 USD
₹600-1500 INR
$15-25 USD / hour