Software engineer with expertise in DevOps and AI
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Software engineer with expertise in DevOps and AI
Designing PCBs, electronics, embedded and product design
New to Contra
Designing PCBs, electronics, embedded and product design
IoT-Based USD to IDR Exchange Rate Display Using Bank BCA Exchange Rates
Real-Time Bank BCA USD/IDR Exchange Rate Monitor using ESP32 and OLED Display with live internet updates.
Features:
• Real-time USD/IDR exchange rate display
• ESP32 WiFi connectivity
• OLED SSD1306 interface
• Automatic online data refresh
• Lightweight and low-power system
• Compact embedded monitoring device
#ESP32 📡 | #IoT 🚀 | #EmbeddedSystems 💻 | #Arduino ⚙️ | #Programming 📚
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Raspberry Pi CM5 Carrier Board with Class-D Amp
In this design, Texas Instruments TPA3118 Class-D amplifier is integrated on the PCB carrying Raspberry Pi CM5. Power supply is coming from USB-PD input via Type-C port.
I/O ports
1 x HDMI
1 x DSI 22p FPC connector
2 x USB 3.0 Type-A
2 x USB 2.0 Type-A
1 x M.2 M-Key PCIe slot for SSD
1 x 3.5mm stereo Line-out jack
1 x USB Type-C Debug/Flash
1 x USB Type-C PD
1 x PWM Fan connector
1 x RGB LED 3-p connector connected to GPIO
1 x rotary encoder input connected to GPIO
ICs
Texas Instruments PCM5102A, 2.1 VRMS, 112/106/100 dB Audio Stereo DAC with PLL and 32-bit, 384 kHz PCM Interface
Texas Instruments TPA3118D2, 30-W stereo, 60-W mono, 4.5- to 26-V supply, analog input Class-D audio amplifier
Injoinic IP2721, TYPEC/PD2.0/PD3.0 Physical Layer IC for USB Type-C input Interfaces
Terminus Tech FE1.1s, USB 2.0 High Speed 4-port Hub Controller
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Arduino Nano-Based PCB Design
I designed a custom PCB built around the Arduino Nano, creating a compact hardware platform for integrating the microcontroller with supporting electronic components and external peripherals.
The design involved organizing the Arduino Nano interface, power connections, input/output lines, and supporting circuitry into a clean and practical PCB layout. I focused on efficient component placement, clear signal routing, reliable power distribution, and maintaining a layout that is easy to assemble and integrate into a larger embedded system.
This project strengthened my experience in Arduino-based hardware development, PCB layout, embedded electronics, component integration, and microcontroller interfacing.
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PWM Module - Multi-Channel PCB Design
Designed a custom PCB integrating four independent PWM (Pulse Width Modulation) modules on a single board, creating a compact and practical solution for controlling multiple output channels.
The PWM modules can be used for applications such as DC motor speed control, LED brightness adjustment, and light dimming. My work involved translating the circuit requirements into a functional PCB layout, carefully arranging the four PWM sections while maintaining clear separation between functional blocks.
I focused on efficient component placement, clean signal routing, power distribution, grounding, and practical board organization. Combining four PWM channels onto a single PCB required careful planning to make effective use of the available board space while keeping the design organized and suitable for assembly.
This project strengthened my experience in multi-channel PCB design, power and signal routing, motor control applications, and practical electronics hardware development.
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Stop losing leads. Keep your business running smoothly.
Stop losing leads. Keep your business running smoothly.
Ready to turn your Idea into product.
Ready to turn your Idea into product.
24V BLDC Motor Controller with Field-Oriented Control (FOC)
Designed a custom 24V three-phase BLDC motor controller PCB for precision robotic motion control using Field-Oriented Control (FOC). The project focused on creating a modular, high-performance embedded hardware platform capable of delivering accurate torque, speed, and position control for robotic joints, gimbal systems, and industrial automation applications.
Key Features
1) Custom schematic design for a 24V FOC motor controller
2) STM32G431-based embedded control architecture
3) Three-phase MOSFET inverter driven by a DRV8353 gate driver
4) High-resolution magnetic encoder interface (SPI) for closed-loop position feedback
5) Three-phase current sensing using precision shunt resistors and current-sense amplifiers
6) CAN Bus communication for integration into distributed robotic systems
7) Integrated protection circuitry, including reverse-polarity protection, over-current protection, and transient voltage suppression
8) Dedicated SWD programming and debugging interface
9) Optimized power distribution for separate 24V, 5V, and 3.3V domains
Project Outcome
The design provides a complete hardware platform for implementing advanced FOC algorithms capable of smooth, efficient, and highly accurate BLDC motor control. The architecture is suitable for robotics, precision actuators, autonomous systems, industrial automation, and research applications requiring high-performance motion control.
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Real Estate Website
I created this project to explore how a real estate platform could present properties in a way that feels modern, professional, and easy to navigate. The goal was to design a site that puts the properties at the center while still providing a smooth experience for users searching for a home.
I started by structuring the website around the user's journey — from discovering properties through the hero search section, to browsing featured listings, learning about the company, and eventually getting in touch. I focused on creating a clean visual hierarchy, using large property imagery, simple typography, and spacious layouts to give the site a premium feel.
The website was developed from scratch using HTML, CSS, and JavaScript. JavaScript was used to add interactive features such as the property search and filtering system, favorite buttons, mobile navigation, and scroll-based animations. CSS media queries were also used to make the layout responsive across desktop, tablet, and mobile screen sizes.
Key focus: Responsive Design • UI/UX • Front-End Development • Interactive Components
Tools: HTML5 • CSS3 • JavaScript
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GridSense — Smart Energy Monitoring Dashboard
Project Type:
UI Design & Frontend Development
Category:
EnergyTech / SaaS / IoT
Technologies:
HTML, CSS, JavaScript, Chart.js
Project Overview
GridSense is a smart energy monitoring
dashboard concept designed to help households and businesses understand,
monitor, and manage their electricity consumption through a centralized,
intuitive interface.
The platform transforms energy usage data
into actionable insights, allowing users to track real-time power consumption,
monitor connected appliances, estimate electricity costs, and identify
opportunities to improve energy efficiency.
Key Features
- Energy Monitoring: View current power consumption, daily energy usage, and estimated monthly electricity costs.
- Appliance Management: Monitor connected appliances, view their power ratings, and interact with simulated ON/OFF controls.
- Energy Analytics: Explore electricity consumption trends through interactive charts with weekly, monthly, and yearly views.
- Energy Efficiency Insights: View an energy efficiency score and identify potential opportunities to reduce consumption.
- Smart Alerts: Receive notifications about unusual energy consumption, prolonged appliance usage, and energy savings.
- Responsive Interface: Access the dashboard through a modern interface designed to adapt to different screen sizes.
- Dark Mode: Switch between light and dark themes for a more personalized viewing experience.
Design Approach
The interface combines a clean SaaS
dashboard layout with intuitive navigation, data visualization, and clearly
structured information. A consistent visual hierarchy, reusable UI components,
and a modern design language help users quickly interpret energy data without
unnecessary complexity.
Development
Built using HTML, CSS, and JavaScript,
GridSense incorporates interactive dashboard elements, dynamic appliance power
calculations, theme switching, and Chart.js visualizations.
The project demonstrates the integration of
frontend development and UI design principles to create a practical,
data-driven interface for a smart energy management platform.
Project Goal
The goal of GridSense is to explore how
thoughtful interface design and accessible energy data visualization can make
electricity consumption easier to understand, helping users make more informed
decisions about their energy usage.
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Project:
Headphone 3D Modeling & Rendering
Project Overview
This project involved designing and developing a 3D model of a pair of
headphones using Autodesk Fusion 360. The aim was to create a modern,
functional-looking headphone design while exploring 3D modeling, form
development, and product visualization.
Design Development
I began by developing the overall shape and proportions of the headphones,
focusing on creating a balanced relationship between the headband, earcups, and
supporting components. I used Fusion 360's modeling tools to construct and
refine the individual parts before assembling them into a complete product.
Modeling Process
The model was created using a combination of sketches, extrusions, fillets, and
other solid-modeling techniques. Particular attention was given to symmetry,
proportions, smooth transitions, and the overall appearance of the product.
Rendering & Visualization
After completing the 3D model, I produced a rendered view to showcase the final
design. The rendering allowed me to present the headphones with realistic
materials, lighting, and surface finishes, making the final form easier to
visualize.
Skills Demonstrated:
3D CAD modeling
Product design
Autodesk Fusion 360
Assembly and component modeling
Surface/form development
Rendering and visualization
Attention to proportion and detail
Final Outcome
The final result is a complete 3D headphone model that demonstrates my ability
to take a product concept and develop it into a detailed digital model. This
project also helped me improve my understanding of CAD workflows and product
visualization.
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Cybersecurity Analyst | Cloud Security & IT Operations
This is a project that I titled Low-cost AI Power theft detection that detects electricity theft, bypass of electricity, high electricity usage, with the help of TinyML integrated and trained into the esp32 and alert with the help of the buzzer and shows in a well polished web dashboard, sensor used would be communicated after the project as been finally built and ready for implementation.
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This is a project I titled: Development of High Blood Pressure (HBP) Prediction and Monitoring System Using CNN-BiLSTM and Fuzzy Logic in Real Time
Still undergoing development:
1. The Flask backend is operational with an integrated CNN-BiLSTM prediction pipeline and a fuzzy logic module for health risk assessment, along with REST API endpoints for communication.
2. A Flutter mobile application has been developed, featuring a dashboard that displays various health metrics and successfully communicates with the backend.
3. Hardware development includes the successful configuration of the ESP32 microcontroller, integration of an OLED display, and testing of the MAX30102 PPG sensor for real-time waveform acquisition.
4. AI integration involves transmitting real PPG data from the MAX30102 sensor to the Flask backend, where the CNN-BiLSTM model generates blood pressure predictions, which are then returned to the ESP32 and backend.
5. The complete communication pipeline from sensor to monitoring dashboard has been established, confirming successful real-time signal processing for blood pressure prediction.
6. Ongoing work focuses on sensor stabilization, hardware integration, synchronization of live updates, alert mechanisms, power management, and final system packaging.
7. The core real-time HBP prediction system using CNN-BiLSTM is implemented and tested, with the project now in the optimization stage before final deployment.
Willing to hear suggestions and getting more gigs to work with and solving of problems
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My lab environment, and this is a project giving to me by a client to test my ethical hacking skill cracking an encrypted .rar file open and seeing the content inside, I was authorised and I confirmed it was his before I performed my attacks.
And I successfully hacked into it.
Not to be disclosed cause of what it contains and for privacy but this was when I was working on the project.
So am opened to share my expertise and solving problems in whatever you bring to my table.
Lekk's Forge got you covered.
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A fully functional health website for a project given to me to work on by a client but still on development stage.
It shows a lot of detailed information and a graph to express the blood pressure trends, with the help of AI prediction using various models to make this possible. Will deliver soon and talk more about it when done.
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Expert Video Editor & Motion Designer
Expert Video Editor & Motion Designer
Software engineer building intelligent systems
Presenting to you, my website portfolio. Click on this link Chidinma's Porfolio (http://ekumachidinma.netlify.app) and get to know more about me.
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Technology has always been where my passion lies.
Although I spent the past year working outside the tech industry, the experience reminded me that my true passion is building technology that solves real-world problems. Today, I'm excited to fully recommit to my journey as a software developer.
My experience includes:
💻 Web Development
📱 Flutter Mobile Development
🤖 AI Applications
🧠 Data Analysis, Machine Learning & Deep Learning
Some of the projects I've built include:
• AI Email Response Generator
• Traffic Sign Recognition System
• Child Tracking System (Flutter, Firebase, GPS & IoT)
• Responsive web applications
I'm currently open to software development, AI, and mobile development opportunities where I can contribute, learn, and grow. If you're hiring or know of any opportunities, I'd love to connect.
🚀 Explore my portfolio: My Portfolio Website (https://ekumachidinma.netlify.app/)
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Creative, organized, and impactful virtual researcher.
Creative, organized, and impactful virtual researcher.
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