IoT Device Developer for Telegram Messaging

@Mahihassi

As an experienced and dedicated Electrical Engineer with a Master's in Embedded Systems, I’m well-versed in the exact field of expertise your project demands. With an extensive background in firmware development, PCB design, and IoT product engineering, I can create robust and efficient designs that integrate seamlessly with various systems. My core expertise lies within microcontrollers and embedded systems encompassing ESP32, STM32, Raspberry Pi, Arduino, among others – all having in-depth knowledge of ultra-low-power operations just like your project requires. Moreover, my proficiency does not simply limit to hardware development but extends to firmware as well. I've worked extensively with wireless stacks including BLE and Wi-Fi which makes me well-acquainted with understanding the intricate nuances of Telegram Bot API – a crucial requirement for this project. Whether it be selecting the optimal batter solution or designing compact enclosures for your devices along with comprehensive assembly guides, my attention to detail will ensure your needs are met.

@markoa7

As an experienced hardware and firmware engineer with a strong background in IoT development, I'm confident in bringing your IoT button project to life. My competency in PCB design combined with my proficiency in microcontroller programming, especially in ESP32, positions me well for this job. More so, my wealth of experience working with low-power designs is crucial towards realizing your desired 6-month battery life target - an attribute your project emphasizes on. My RF Design & Analysis capabilities will also come in handy for the effective wireless communication needed for your button device. I am an expert in WiFi and Bluetooth integration, with a proven track record of delivering efficient solutions. Furthermore, I bring to the table strong skills in writing clear assembly guides and documentation. To augment my skills, I propose using STM32L0 microcontroller or ESP32 chip alongside carefully selected batteries to ensure opti

@SPARKtechBD

Since 2003 I am working in Digital Electronic. So more than 18 years of experience in Electronics. Arduino NANO/UNO/MEGA, ESP32 and Raspberry PI to build a digital device to read sensor data and send it to the web server, motor control, control relay switches and LEDs. More than 5(five) years of experience in Arduino design and build. If you want an excellent and error-free project delivery, then send a message to me, please. Have more than 10(years) years of experience in C/C++ to build Windows/Linux applications and micro-controller firmware building. If you want a good job delivery, then send a message to me, please. Since 1995 I have been working on Analog and Digital Electronics to build any kind of device. I have build lots of devices. So more than 20 years of experience on Electronics. Including power supply design. Any kinds of schematic and PCB design. Expert PCB design in EasyEDA Pro IDE.

@majeed219

With my extensive experience in embedded systems and IoT device development, I am confident that I am the perfect fit for your project. Having worked on a myriad of microcontrollers including the ESP32 and various low-power microcontrollers, I have a profound understanding of how to optimize battery life in IoT devices without compromising functionality. My familiarity with Bluetooth, Wi-Fi, Zigbee, and other wireless protocols is also valuable for reliable connectivity. The plethora of single board computers under my belt like Raspberry Pi has exposed me to different programming languages, development IDEs and PCB design tools that will certainly come in handy for your project. Additionally, I have in-depth knowledge about various platform APIs including the Telegram Bot API which makes message transmission via Telegram a well-trodden path for me. Above all, client satisfaction is my top-most priority. I pay meticulous attention to detail and ensure my code and instructions are well-documented and easy to understand even for non-experts. Most crucially, I deliver quality work on time within budget. Choose me today, let me help bring your ingenious IoT idea to life. Together we can achieve great things!

@tshibsamuel477

Hi there, I’ve reviewed your IoT Button project in detail and I’m confident I can deliver a reliable, low-power design that meets your 6-month battery-life target and integrates seamlessly with the Telegram Bot API. With nearly five years of experience in embedded and IoT systems, I’ve developed battery-powered ESP32/nRF52 devices optimized for ultra-low-power operation, Wi-Fi/BLE connectivity, and cloud message integration. I can handle the full scope — from hardware selection and schematic design to firmware development, testing, and clear documentation. You’ll receive: A schematic and wiring diagram, Clean, documented source code (ESP-IDF or Arduino), A tested Telegram message workflow, And either a fully assembled prototype or a DIY assembly guide with clear diagrams, part lists, and setup instructions. If you’d like, just send me a message to discuss your preferred microcontroller (ESP32, nRF52, or STM32L0) and enclosure options — I can start outlining the power strategy and message logic immediately. Best regards, Samuel Tshibangu

@hayteekeys

KINDLY READ THROUGH MY PROPOSAL THIS IS WHAT I WILL DO DETAILED APPROACH 1. Use an ultra‑low‑power MCU (ESP32‑C3 or nRF52) + tactile button that wakes the device from deep sleep, with a battery sized for ~6+ months (e.g., 18650 or AA pack, depending on your preference). 2. Firmware: on press → wake, connect to Wi‑Fi, hit **Telegram Bot API** to post to your group, confirm send, then return to deep sleep (<10–20 µA idle). Add simple Wi‑Fi + bot token setup flow. 3. Provide either fully assembled, tested units or a very clear DIY guide: wiring/schematic, part list with links, enclosure drilling/mounting steps, and basic troubleshooting. DELIVERABLES - Schematic + wiring diagram. - Documented firmware source + build instructions. - Telegram bot setup + device configuration guide. - EITHER assembled device(s) OR step‑by‑step assembly manual. RELEVANT PROJECTS - ESP32 deep‑sleep alert button with Telegram integration (~9 months on 18650). - Low‑power nRF52 IoT nodes with multi‑month battery life. QUESTIONS - Do you prefer **Wi‑Fi only** or are you open to nRF52 + gateway for even longer life? - Rough first batch quantity and preference: assembled vs DIY kit?

@TopRated209

Hi! Your ESP32 choice is solid for prototyping, but for 6-month battery life I'd recommend the ESP32-C6 instead - it pulls 5µA in deep sleep versus 10-20µA on standard ESP32, which directly impacts whether your target is achievable. The real challenge isn't the button press detection, it's optimizing WiFi connection overhead since each transmission will consume 2-3mAh from your battery budget. Implementation Approach: Phase 1: Component selection and breadboard validation - ESP32-C6, 18650 Li-ion sizing, button debouncing circuit Phase 2: Schematic design in Altium Designer, focusing on ultra-low-power architecture and antenna placement for enclosure compatibility Phase 3: Firmware development using ESP-IDF with FreeRTOS task management, implementing deep sleep state machine and WiFi fast-reconnect protocols Phase 4: Power consumption validation, thermal testing, and mechanical integration with your planned enclosure we can discuss it more in detail in chat. Thanks Regards

@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:  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.

@arbu1499

Hi! I understand you need a low-power, battery-operated IoT button that reliably sends Telegram messages, either fully assembled or with a clear DIY guide. I have hands-on experience with ESP32 and other low-power microcontrollers, optimizing deep-sleep firmware for multi-month battery life, and integrating devices with the Telegram Bot API. I can provide fully tested code, schematics, and either ready-to-use hardware or a step-by-step assembly guide with diagrams and part lists to make setup easy for non-experts. Looking forward for your positive response in the chatbox. Best Regards, Arbaz H

@redbrickamerica

Hello! We are ready to take on the challenge of developing a low-power IoT button that sends Telegram notifications. With expertise in IoT devices and embedded systems, we will design a battery-powered device with a 6-month runtime. Our approach includes selecting the best microcontroller, designing a compact enclosure, and ensuring reliable messaging via the Telegram Bot API. The project will be delivered with fully assembled devices or a comprehensive assembly guide. Let's discuss how we can bring your IoT messaging vision to life!

@electronicsdone

Best Battery-Powered IoT Device Developer ⭐⭐⭐⭐⭐ Hi Dev, Thanks for sharing your requirements so clearly—it really helps. I’ve worked on battery-powered IoT devices where the goal is to combine ultra-low-power operation, reliable wireless communication, and compact hardware design. Your Telegram messaging button concept is very doable. The goal is simple: deliver either fully assembled devices or detailed, production-ready assembly guides that ensure long battery life and reliable message delivery. ✅ How I’ll Help You Succeed 1. Choose an appropriate microcontroller (ESP32 or alternative low-power MCU) and battery to meet the ~6-month runtime, and design or select a compact enclosure. 2. Implement hardware to detect button presses and connect reliably to Wi-Fi or other network protocols. 3. Fully test end-to-end operation (button → Telegram message) and ensure device stability under battery-powered conditions. ✅ Before I start, one quick thing: Do you have a preferred microcontroller, battery type, or target enclosure size? If you share those details, I can review them and suggest the optimal hardware approach. Best, Prat PCB Must Innovations

@ahmaddar2970

Hi there, I’ve read your IoT Button for Telegram project and I’m confident I can deliver a tiny, battery-friendly button that triggers Telegram messages reliably. I’ll pick a ultra-low-power MCU (ESP32-S2 or STM32L0 family) with a compact LiPo pack to hit ~6 months depending on press rate. Firmware will wake on press, send via Telegram Bot API, then return to deep sleep. Delivery options: fully assembled unit or a detailed assembly guide with diagrams and a bill of materials. I’ll also provide a wiring diagram, clean source code with build steps, and Telegram Bot provisioning instructions. What you’ll get: - Hardware: compact enclosure, board, battery, PCB/module - Firmware: low-power wake/sleep, robust Telegram posting, error handling - Documentation: assembly guide or finished device, schematic, and setup steps - Optional: notes for future production Approach: select the best ultra-low-power MCU, optimize sleep cycles, ensure reliable message delivery on Telegram, and document every step with diagrams and comments. Questions: - What is your target daily message rate to accurately size battery life? - Do you prefer fully assembled devices or a detailed DIY guide with parts list? - Any enclosure size or connector constraints (e.g., power switch, LEDs)? - Do you want cellular backup or only Wi-Fi-based operation? What is your target daily message rate to accurately size battery life? Best regards,

@beingmrme

HI With 25 years’ experience, I’ll build your IoT device integration with Telegram—secure, responsive notifications, command control, and scalable firmware tailored to your hardware. I focus on clear data flow, minimal latency, and reliable connectivity for real-time interactions. ✅ Solution: Structured API design + robust firmware + secure MQTT/HTTPS communication for seamless Telegram alerts. Questions: 1️⃣ Which MCU/board are you using? 2️⃣ Required Telegram commands list? 3️⃣ Preferred connection protocol (Wi-Fi/Cellular)? We will work as per Freelancer.com’s terms and policies. Warm regards, The Blend Nation

@yaroslavmark

✅Okay, I got what you want exactly. ❤️I am a professional engineer Embedded Engineer with over 10 years of experience, providing IoT device design, MCU firmware, sensor integration, secure connectivity, and Telegram Bot API integration. In my opinion, the best approach for this project is to build a stable embedded firmware that securely publishes device data to a lightweight cloud or broker, then bridges it to Telegram for real-time alerts and control. I would also design the system so future features (new sensors, commands, or users) can be added without rewriting the core logic. This project is very similar to my previous works. I previously worked on an ESP32-based monitoring device in Austin, TX, where I developed firmware, integrated Wi-Fi/MQTT, and built a Telegram bot for instant notifications. I also handled device provisioning, OTA updates, and long-term stability testing for field deployment. The most important skill this project requires is reliable embedded firmware design with secure communication. I solve this by using proven libraries, watchdogs, and structured state machines to keep the device responsive and safe. Via private chatting or meeting, I will provide the creative idea and good tech solution for your project and i want to discuss about the budget and timeline in detail.

@sibtain0999

With my skills and experience in mobile app development, I believe I am perfectly suited for your IoT Device Developer project. Although not a direct match to your archived Flutter expertise, my ability to create high-performance, user-friendly applications across platforms attests to my proficiency with embedded systems and firmware development which is key for this project. Regarding the low-power microcontrollers, let's explore alternatives like nRF52 or STM32L0 alongside the widely used ESP32 solution. Through careful selection of the components and optimizing the firmware, we can certainly achieve the desired battery life of around 6 months for your IoT button. Based on your assembly preference, I will either provide fully assembled devices or guide with precise step-by-step instructions even a non-expert can follow. For warranty, I will additionally provide thorough testing using real scenarios to ensure seamless connectivity between the button press and reliable Telegram group messaging. The comprehensive documentation including wiring diagram, source code, build files and integration instructions will be prepared and maintained alongside my clean, documented code approach. In conclusion, catering to your needs of a highly reliable yet low-power consuming IoT button that operates smoothly over an extended period defines my expertise. Let's chat more about how we can apply all these amazing experiences I have to your unique project!

@Joejoe777

Hi there, After studying your assignment, I've prepared the following options. I look forward to your feedback. Option A: Develop a battery-powered IoT button using ESP32 microcontroller for reliable Telegram notifications. Provide fully assembled devices ready for use. Option B: Design a low-power IoT button with alternative microcontrollers, offering clear assembly instructions for DIY enthusiasts. Let's discuss in detail through chat.

@shanbirplatypus

Hello! Thank you for the detailed project description — this is a great fit for our team. We can design and deliver a battery-powered IoT button that sends a message to your Telegram group on each press, using an ultra–low-power microcontroller (ESP32 or nRF52) with deep sleep to target around 6+ months of battery life.​ What we will provide: Hardware selection (MCU, battery, enclosure) + schematic/wiring diagram. Firmware for button press detection, deep sleep, Wi‑Fi connection, and Telegram Bot API messaging.​ Either fully assembled units or a step‑by‑step DIY assembly guide with parts list, diagrams, and configuration instructions (Wi‑Fi + Telegram Bot). Experience: IoT builds on ESP32, ESP8266, Arduino, Raspberry Pi, NVIDIA Jetson, with low‑power and battery‑based designs.​ Strong background in embedded development, Python, computer vision, Unity/Unreal, and AR/VR hardware, so future feature extensions (sensors, analytics, dashboards) are easy to add. Proposed approach: Use an ESP32 (deep sleep, wake on button) or nRF52 with a Li‑ion/AA battery and a compact 3D-printed or off‑the‑shelf enclosure.​ Implement and test the full flow: Button → Wake → Wi‑Fi → Telegram bot → Group message, then share all source code and documentation for you to reuse or scale. Happy to discuss quantity, preferred microcontroller, and whether you’d like assembled units or just a DIY kit with guide.

@bilala658

I understand your project requires an IoT device developer to integrate Telegram messaging functionality. I will design and implement a solution that enables your IoT devices to send and receive messages through Telegram, ensuring seamless communication and real-time updates. Specifically, I will: 1. Develop firmware for your IoT devices that interfaces with the Telegram Bot API, allowing for message sending and receiving. 2. Implement secure authentication mechanisms to safeguard your device and user data. 3. Provide thorough testing to ensure reliability and responsiveness of the messaging feature. 4. Offer comprehensive documentation and support for future enhancements. With over 5 years of experience in IoT development, I have successfully completed similar projects, including smart home devices and remote monitoring systems. My proficiency in programming languages such as C/C++ and Python, along with familiarity with MQTT and RESTful APIs, equips me to handle the complexities of your project effectively. I also utilize tools like Arduino and Raspberry Pi for rapid prototyping. I look forward to the opportunity to contribute to your project and help you achieve your goals with robust IoT solutions. Best regards, Bilal.

@larasatik4

Hi Dev, IoT Device Developer for Telegram Messaging is a project I can approach with a clear, engineering-driven mindset. I’ve worked on similar systems and know how to design a clean, reliable solution from start to finish. From your description, here’s how I would approach it: 1. Clarify data sources, constraints, and required outputs: Telegram group messaging, ~6 months battery life, enclosure size, assembly vs assembled. 2. Build a stable firmware workflow with deep sleep, reliable button press detection, robust retries to Telegram Bot API, and careful power management. 3. Choose hardware (ESP32 or low-power MCU), battery sizing, enclosure, and a modular firmware stack for debouncing, wifi provisioning, and OTA-ready updates. 4. End-to-end testing, documentation, build instructions, and a ready-to-run device or clear assembly guide. I always build with clarity, structure, and long-term maintainability in mind. If you’re open to it, I’d like to ask one quick question so I can tailor the solution more precisely: Would you prefer ESP32 or another low-power MCU, and should I deliver a fully assembled unit or a detailed step-by-step assembly guide? I can also deliver a complete assembly guide with diagrams and a parts list if you prefer non-assembled units. What’s your preferred deployment path (fully assembled or guide + parts)? Looking forward to discussing more. Best regards, Larasati