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(16 reviews)

Abdur-Rafiq M.

@abdurRafiqM

4.6

5.2

100%

Electrical & Electronics Engineer, Member IEEE

$15 USD / Hour

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Nigeria (5:13 PM)

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Joined on January 24, 2025

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1 Recommendation

$15 USD / Hour

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I am an experienced Electrical and electronics Engineer specialized in PCB Design, Circuit Design, Circuit simulation and Professional Consultation. I am well experienced in the use of tools like ALTIUM Designer, KICAD, EASYEDA, Multisim, LTSPICE etc. I deliver my work to the taste of my client and as early as needed Here is a link to my portfolio [login to view URL]

Verifications

On time

81%

On budget

100%

Accept rate

100%

Repeat hire rate

16%

See all Electronics Engineers in Nigeria

Portfolio

This project is a multi-sensor integrated breakers board driven/commaded with a MCU (STM32G474RBT) chip which helps in enhancing the efficiency in avionics systems in student projects interms of speed, area, power consumption and more.
This module consists of 4 different sensors organised using an ARM Cortex M4 chip to make sure the cumulated data is driven to host MCU with high data rates and minimum power consumptions.

Integrated Sensor Aggregation Module

The design is a rain, temperature and other weatehr sensing borad designed to be attached to street lights through a NEMA connector. The design uses STM32 and an LTE module to measure and send details of the reading via mobile.

Rain Guage sensing board

The design is a Wifi UPS board that take a 12v 3A input from a wall adapter and also uses a battery as backup power and switches immediately once power is off. the design also delivers a 12V 3A output for Wi-Fi Routers

Wifi UPS Design

The Design ia a noise sensor Based on an ESP32 MCU meat to be installed on a street light through the NEMA Protocol and used to identify sounds Such as cry for help, Sirens, etc.

ESP based noise sensor

The design featuress chematic and 2-layer PCB for a compact DMX512 controller board. The board supports DMX send and receive, provide galvanic isolation for the DMX line, and connect multiple external modules using JST-XH 2.54 mm connectors.

Arduino DMX Shield

The design is a 60W ACDC converter designed to meet CE certification standards. The board converts a 210VAC-230VAC from the an AC source to a 24VDC @ 2.4A sutable for appliances. The design uses a flyback topology, SMPS transformer and optocopular to obtain galvanaic seperation of the input and output sections for the protection of the output.

60W CE certified AC DC Converter

Integrated Sensor Aggregation Module

Rain Guage sensing board

Wifi UPS Design

ESP based noise sensor

Arduino DMX Shield

60W CE certified AC DC Converter

4.6 · 16 Reviews

16 Reviews

PCB design

Very skilled and knowledgeable engineer with strong expertise in PCB and circuit design. The quality of work exceeded my expectations, and everything was delivered on time. Clear communication and great problem-solving abilities. Will definitely work with them again.

Electronics

Electrical Engineering

PCB Layout

Circuit Design

+1 more

App-freier Trennungsalarm entwickeln -- 2

Abdur-Rafiq M. is competent and nice. I would like to work with him again anytime. Very good Job!

Wireless

Electronics

Progetto HAT 12V Power Custom

Grande disponibilità e professionalità , una persona molto affidabile. Grazie

Circuit Design

Electrical Engineering

Electronics

Embedded Systems

Microcontroller

+3 more

ESP32 PCB Design for Android Interface

Abdur Rafiq is a very kind and helpful person. He is highly skilled in PCB design and has excellent problem-solving abilities. He is always willing to support others and approaches technical challenges with dedication and expertise.

Electronics

Microcontroller

Electrical Engineering

PCB Layout

Circuit Design

+3 more