Tathkeer — Universal Spiritual Reminder Wearable

Turn your faithful routine into a living schedule — from pre-Fajr adhkār to sleep supplications.

  • Jan – Jun 2025 | –40% Dev Time • $1.2K Tooling Saved | Prototype Shipped — Beta Testing Live

A behind-the-scene look into the Development of the Tathkeer Wearable

  • Final [Project] render, [material/finish], front-angle view

    Final Render

  • First sketch of [Project] concept in notebook, outlines core features

    Initial Sketch

  • Early CAD model of [Project] without fillets, basic geometry visible

    Early CAD Model

  • 3D-printed prototype of [Project] held in hand for scale reference

    First Physical Prototype

  • “Exploded view of [Project] showing components, fasteners, tolerances annotated

    Exploded / DFM View

  • [Project] prototype in use—demonstrates fit and ergonomics during typical task

    Real-World Use

Background & Design Requirements

Client Brief (You → Yourself):

  • You needed a single, screen-free wearable to prompt every pillar of your daily spiritual practice: the five prayers plus adhkār, Quran recitation, hydration, family check-ins, healthy breaks.

  • It had to be slim (Apple-Watch scale), discreet (vibration + LED), low-power, and fit standard watch straps.

  • Future goals: mosque-specific prayer cues, Thursday/Friday special dhikr, location-based prayer times via user’s locale.

Client
Moataz Ibrahim

Year
2025

Engineering Challenges

1. Inclusive Reminder Logic
– Align 35 daily events (30 min before athān, adhkār cycles, hydration) to shifting prayer times by GPS or set locale.
– Built an .ics prototype to validate timing in Google Calendar.

2. Miniaturized Electronics
– Consolidated microcontroller, RTC, charger, motor, LED, switch onto a 22 mm watch board.
– Wire-wrap perf-board proved bulky; moving to custom 2-layer PCB in KiCad for sub–6 mm thickness.

3. Mechanical Fit
– Designed octagonal PETG shell in Fusion 360; test print needed +1 mm strap-bar clearance.
– Internal “well” carved to house 12 000 mm³ of electronics.

Product Outcomes

– Working Prototype: First wire-wrap board running ArduinoAI sketch with vibration + NeoPixel feedback—no compile errors, pending real-world test.
– Calendar Sync: .ics file created for daily routine, tested in real-time on Google Calendar.
– 3D-Printed Shell: Octagonal watch case with reusable spring-bar strap mounts; on-wrist comfort confirmed after minor fit-tweaks.

Future Milestones:

  1. Custom PCB order from PCBWay (Gerbers + BOM ready)

  2. Full assembly and hardware validation (battery life, haptic strength)

  3. Companion mobile app for auto-fetching prayer times and work-hour profiles

Quote Source

“It all begins with an idea. Maybe you want to launch a business. Maybe you want to turn a hobby into something more. Or maybe you have a creative project to share with the world. Whatever it is, the way you tell your story online can make all the difference.”

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