Freelance Embedded Systems Developers in LagosFreelance Embedded Systems Developers in Lagos
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Adeagbo AbdulJeleel's avatar
Adeagbo AbdulJeleel
Lagos, Nigeria
Designing PCBs, electronics, embedded and product design
New to Contra
Designing PCBs, electronics, embedded and product design
Cover image for IoT-Based USD to IDR Exchange
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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Cover image for Raspberry Pi CM5 Carrier Board
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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Cover image for Arduino Nano-Based PCB Design I designed
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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Cover image for PWM Module - Multi-Channel PCB
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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Embedded Systems Developer(9)