Digital Writing Pad Hardware Integration

@kaustubhbawa123

Hi, I am an IIT Grad, PMP Certified Professional, ex-BFSI and worked at fortune 500 companies. I will make it a reality for you. As a Electronics Engineer, I will design and prototype a small board using Arduino or ESP32, integrating it with the e-ink writing pad's SDK to recognize button presses and forward commands to the companion app. Kindly click on the chat button so we can discuss and get started. Will share you my prior projects done and my resume too. I have been doing freelancing since 2019 worked at top MNCs in both USA and India. Lets connect

@Ak230598

I can work for your writing pad sdk. You have to give me sdk doc for that. I have 6+ years of experience in this field. Let's connect and discuss more about your requirements. Thank you.

@shibbuquadir

As the lead developer at Paper Perfect, I have extensive experience in mobile app development for Android, specifically using Kotlin. I am adept at working with low-level protocols like BLE and USB in order to enable seamless communication between hardware and software. With a strong foundation in embedded electronics, I can design, prototype, and provide firmware for the custom add-on board your project requires. What sets me apart is my commitment to delivering exceptional results on time and within budget. Throughout the project, I will ensure that the pen trace on your phone mirrors the pad with a lag of less than 50 ms, every button press registers successfully, and all data remains intact after consecutive page loads. By selecting me for this project, you are not only choosing someone with extensive technical skills but also a partner who truly understands your unique needs. Let my expertise in lightweight links, robust firmware design and real-time streaming of complex data make your vision an equally functional reality. Let's get started!

@soniaer987

The hardware side of this project is exactly what I do — custom PCB design, BLE firmware, and low-power embedded systems. For the add-on board I'd use an nRF52 or ESP32-C3 as the MCU — both have mature BLE stacks, tiny footprints, and negligible power draw that won't affect the pad's battery life. Three tactile buttons with hardware debounce, firmware that maps each press to the correct BLE HID or GATT event the SDK expects, and a clean schematic + BOM ready for prototyping. Latency well under 50 ms is standard for BLE HID — this is achievable without any exotic tricks. I will deliver full schematics, BOM, firmware source, and one working prototype shipped to you for field testing. For the Android app in Kotlin with Material 3, SDK integration, real-time pen stroke rendering, button event handling, and PNG/PDF export — I can handle this or bring in a trusted Android collaborator depending on your timeline. Can you share the SDK documentation? That will let me confirm the BLE command structure and scope the Android layer accurately before we start.

@ThynkLoop

Hi, I can develop a complete solution for your e-ink writing pad integration, including a compact hardware add-on with buttons and a clean Android application. I have experience in embedded systems, BLE/USB communication, and Android development. I will design a low-power hardware module with tactile buttons (Next, Save, Upload), integrate it with the pad using BLE or USB-HID, and develop a lightweight Android app using the provided SDK for real-time writing, file management, and export. Scope: *Hardware add-on design (3-button PCB + communication module) *Firmware development (BLE/USB event handling) *Android app development (Kotlin, Material UI) *Real-time pen data rendering *Button event integration (Next, Save, Upload) *File export (PNG/PDF) and upload support Deliverables: *Schematic, PCB, Gerber files *Firmware source code *One working hardware prototype *Android app source + APK *Documentation and demo video Approach: *Design compact, low-power hardware with reliable button input *Implement fast communication *Develop smooth real-time rendering using SDK *Ensure seamless integration between hardware and app *Test for stability across multiple pages and operations I will deliver a reliable, user-friendly, and efficient system tailored to your requirements.

@priyankab674

I LOVE TO WORK ON PROJECTS WHICH I REALLY LOVE TO WORK Schematics, BOM, and firmware for the add-on board • 1 working hardware prototype shipped to me for field testing • Android Studio project with full source, build instructions, and signed APK • Short demo video proving the complete workflow: write → next page → save → upload

@EfficientEdgeBPO

Let’s simplify your e-ink pad experience. You need a sleek hardware add-on with three tactile buttons seamlessly communicating with your pad, plus a clean, Kotlin-based Android app that streams pen data in real time, handles button events, and exports pages efficiently. While I am new to Freelancer, I have tons of experience and have done other projects off site in embedded electronics, BLE/USB firmware, and Android development. I’d love to chat more about your project! Regards, Dane Barnard