Nirmalya lenka NirmalyaLenka

NIRMALYA LENKA

Engineering Student
Embedded Systems | IoT | Robotics | Software

Engineering student building embedded systems, connected devices, robotics prototypes and practical software that interacts with the physical world.

Most of my projects start with a sensor and end with something a person can read or control: an OLED page, a web dashboard, a phone app link. In between sit ESP32 firmware, wireless links (ESP-NOW, BLE, Wi-Fi) and a lot of debugging.

┌──────────────────────────────────────────────────┐
│ NIRMALYA@ENGINEERING-LAB                         │
├──────────────────────────────────────────────────┤
│ OS        : Linux / Windows                      │
│ MCU       : ESP32 / Arduino                      │
│ Wireless  : Wi-Fi / BLE / ESP-NOW                │
│ Sensors   : I2C / SPI / UART                     │
│ Robotics  : Motors / IR / ToF / Encoders         │
│ Backend   : Python / JavaScript                  │
│ Status    : BUILDING                             │
└──────────────────────────────────────────────────┘

> WHAT I BUILD

Animated signal flow between sensors, an ESP32, motors, an OLED and a wireless link

Sensor nodes and monitors
ESP32 boards reading voltage, current, temperature, light and motion, shown on OLEDs and web dashboards.

Wireless links
ESP-NOW between boards, BLE to phones and browsers, Wi-Fi dashboards with JSON endpoints.

Automation
Irrigation zones, alerts and thresholds that run on the device itself.

Robotics
Competition-oriented builds, starting with a line-following robot.

FEATURED BUILDS

BUILD PREVIEWS

_{AccidentGuard · illustrative animation}	_{SolarGuard Pro · illustrative animation}
_{GreenHouse IQ · illustrative animation}	_{Line Following Robot · illustrative animation}

_{The animations are drawn illustrations of each system's structure, not recordings of the hardware or live sensor data.}

SYSTEMS I WORK WITH

   ┌─────────────────────────────────────────────┐
   │  SENSORS                                    │
   │  accelerometer · GPS · temperature · light  │
   │  current / voltage · soil moisture · ToF    │
   └──────────────────────┬──────────────────────┘
                          │
                          ▼
   ┌─────────────────────────────────────────────┐
   │  ESP32 / MCU                                │
   └──────────────────────┬──────────────────────┘
                          │
        ┌─────────┬───────┼───────┬─────────┐
        │         │       │       │         │
       I2C       UART    BLE    Wi-Fi    ESP-NOW
                          │
                          ▼
   ┌─────────────────────────────────────────────┐
   │  CONTROL / PROCESSING                       │
   │  ├── embedded firmware                      │
   │  ├── automation logic                       │
   │  ├── robotics                               │
   │  └── data processing                        │
   └──────────────────────┬──────────────────────┘
                          │
                          ▼
   ┌─────────────────────────────────────────────┐
   │  DASHBOARD / INTERFACE                      │
   │  OLED · web dashboard · PWA over BLE · JSON │
   └─────────────────────────────────────────────┘

TECHNICAL STACK

_{HANDS-ON IN MY REPOSITORIES}

_{TOOLBOX AND LEARNING PATH}

Area	What I use
Embedded	C, C++ (Arduino framework), ESP32, Arduino, PlatformIO
Communication	I2C, UART, BLE, Wi-Fi, ESP-NOW, HTTP + JSON
Sensors	ADXL345 accelerometer, NEO-6M GPS, INA226 and ACS712 current / voltage sensing, DHT22, DS18B20, BH1750, capacitive soil moisture, optical dust sensing, VL53L0X time-of-flight, rotary encoder
Robotics	Line following
Software	JavaScript, HTML, Web Bluetooth / PWA, Git
Exploring	Python, Raspberry Pi, MQTT, SPI, React, Node.js

MORE FROM THE LAB

Smart Pressure Ulcer Prevention System · VL53L0X laser distance sensor tests · ESP32 Wireless Lyrics Display · RPM Meter with rotary encoder and OLED · Automatic Cat Food Dispenser · Smart AC Controller · Smart Parking Assistant System · Wireless Signal Scanner · PocketDeck

REPOSITORY ACTIVITY

Everything I build lives on GitHub, and the list changes as projects move forward.

Repositories  →  https://github.com/NirmalyaLenka?tab=repositories
Profile       →  https://github.com/NirmalyaLenka

PROJECT TIMELINE

   LEARNING
      │   circuits · C / C++ · Arduino
      ▼
   SENSOR EXPERIMENTS
      │   ToF · rotary encoder · OLED · I2C
      ▼
   ESP32 / IOT SYSTEMS
      │   Wi-Fi dashboards · BLE · ESP-NOW links
      ▼
   AUTOMATION
      │   irrigation · monitoring · alerts
      ▼
   ROBOTICS
      │   competition line follower
      ▼
   INTELLIGENT EMBEDDED SYSTEMS
          adaptive control · where the work is heading

BROWSE REPOSITORIES

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