# DD ElectroTech

DD ElectroTech is a premium R&D and Product Engineering Lab specializing in bringing intelligent hardware systems from concept to mass production.

## Core Expertise

- **PCB Design & Engineering**: High-density interconnect (HDI) designs, signal integrity analysis, and multi-layer stackups (4-12 layers) optimized for EMI/EMC compliance.
- **Embedded Software**: Robust RTOS-based firmware (FreeRTOS) and bare-metal drivers (C/C++) for STM32, ESP32, and low-power microcontrollers.
- **IoT & Wireless Integration**: Antenna design, wireless certification prep, and secure cloud connectivity for BLE, Wi-Fi, and LoRaWAN.
- **Industrial Design & Prototyping**: Enclosure modeling (CAD/DFM), 3D printing mockups, and thermal analysis bridging aesthetics with hardware durability.
- **Product Interface & Interaction Design**: Touchscreen HMI displays, intuitive companion apps, and smart device digital experiences.

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## Selected Engineering Portfolio

- **Smart Mirror Ecosystem OS**: Integrated smart-mirror platform featuring display integration, custom PCB architecture, and OS firmware.
- **Alexa Smart Speaker & DIY Kit**: Alexa-enabled IoT audio system adapted as an educational maker-kit sold globally.
- **Custom Tablet Computer**: Fully integrated custom tablet prototype sourced and assembled with low-level kernel configurations.
- **Smart Glass Wearable**: Low-power wearable display displaying mobile notifications, text messages, and call metadata.
- **Biometric Keyless Motorcycle System**: Custom control board replacing key systems with fingerprint authentication.
- **FPV Drone & Custom Transmitter**: Suited flight integration accompanied by an Arduino-based wireless RF transmitter.
- **Lightweight Suction Vehicle**: Light RC car climbing walls and ceilings via a custom suction turbine system.
- **Switchless Home Automation**: Connected electronic relay boards supporting server-less IoT commands.

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## Contact & Inquiry
- **Website**: https://ddelectrotech.com/
- **Inquiries**: debashis@ddelectrotech.com
- **Phone**: +91 84207 66324
- **Address**: Kolkata, West Bengal, India