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Abbas -.

@SMBelectronics

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4,4
65

6,1

6,1

89%

Embedded Sys. Hardware & Firmware Engineer | IoT

$15 USD / Heure

・

Drapeau de

India (8:51 AM)

・

Inscrit depuis le janvier 1, 2020

・

9 Recommandations

$15 USD / Heure

・

Looking for a professional PCB designer or Embedded System Engineer who can deliver fast, high-quality, fabrication-ready electronics? I’m Abbas Jawadwala, founder of SMB Electrotech, and I specialize in PCB layout, IoT product development, embedded systems, ESP32/STM32 hardware, sensor interfacing, power electronics, and Li-ion battery pack design. With 12+ years of experience, I help clients worldwide turn concepts into reliable, production-ready electronics with speed and precision. 🔧 Core Specializations 📌 PCB Design & Layout - Altium Designer | KiCad | Eagle - 18-layer boards, mixed-signal, high-speed, RF-friendly routing - High Speed Layout, Differential pairs, impedance-controlled traces - DFM/DFT-compliant fabrication documentation - Gerber files, BOM, 3D models, manufacturing pack 📌 IoT Hardware Development -ESP32 / ESP32-C3 / ESP8266 -STM32 (F0/F1/F4 series) | RP2040 -LoRa, BLE, WiFi, GSM, NB-IoT modules -Sensor nodes, data loggers, gateways, telemetry systems 📌 Embedded Systems & Firmware -ESP-IDF, Arduino, STM32 HAL, FreeRTOS -ADC/DAC interfacing, digital/analog I/O -USB programming, OTA firmware updates, bootloaders 🔍 Industries Served Industrial IoT • Consumer Electronics • Smart Devices • Automation • Renewable Energy • Robotics • OEM/ODM Product Development ⭐ Why Clients Prefer Working With Me - 12+ years in electronics & embedded engineering - Fast, accurate, and reliable delivery - OEM/ODM-grade documentation and design quality - Clear communication and daily progress updates - End-to-end development support from idea → prototype → production 🛠 Recent Project Deliveries ESP32-C3 data acquisition board (4 analog + 4 digital I/Os) Industrial IoT sensor node for remote monitoring Multiple PCB layouts completed within 2–3 days 📩 Let’s Build Your Next PCB, IoT Device, or Embedded System If you need a PCB expert, IoT hardware designer, ESP32/STM32 specialist, or embedded systems engineer who delivers high-quality, fabrication-ready electronics, send me a message. I’ll help you build professional-grade hardware, fast and reliably.

Vérifications

Dans les temps

76 %

Dans le budget

79 %

Taux d'acceptation

95 %

Taux de réembauche

10 %

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Portfolio

Portfolio

Tout
PCB DESIGN (23)
Firmware projects (10)
Power Supply (6)
Simulations (3)
13783568
Provided this project to Industrial automation client this device uses ESP32 as it core and logs data of 3 sensor connected through Isolated digital inputs while also providing a provision to control 2 outputs connected through relays

Electronics Engineer & ODM supplier

Provided this project to Industrial automation client this device uses ESP32 as it core and logs data of 3 sensor connected through Isolated digital inputs while also providing a provision to control 2 outputs connected through relays

Electronics Engineer & ODM supplier

Provided this project to Industrial automation client this device uses ESP32 as it core and logs data of 3 sensor connected through Isolated digital inputs while also providing a provision to control 2 outputs connected through relays

Electronics Engineer & ODM supplier

Provided this project to Industrial automation client this device uses ESP32 as it core and logs data of 3 sensor connected through Isolated digital inputs while also providing a provision to control 2 outputs connected through relays

Electronics Engineer & ODM supplier

13783535
single-board solution that seats an Arduino Nano and handles full DCC interfacing for model-rail accessory control. The board’s sole purpose is to speak DCC, pass the signal cleanly to the Nano, and drive external accessory decoders (LEDs)— no motor or sound functions, just reliable accessory switching

Electronics Hardware Engineer

single-board solution that seats an Arduino Nano and handles full DCC interfacing for model-rail accessory control. The board’s sole purpose is to speak DCC, pass the signal cleanly to the Nano, and drive external accessory decoders (LEDs)— no motor or sound functions, just reliable accessory switching

Electronics Hardware Engineer

single-board solution that seats an Arduino Nano and handles full DCC interfacing for model-rail accessory control. The board’s sole purpose is to speak DCC, pass the signal cleanly to the Nano, and drive external accessory decoders (LEDs)— no motor or sound functions, just reliable accessory switching

Electronics Hardware Engineer

single-board solution that seats an Arduino Nano and handles full DCC interfacing for model-rail accessory control. The board’s sole purpose is to speak DCC, pass the signal cleanly to the Nano, and drive external accessory decoders (LEDs)— no motor or sound functions, just reliable accessory switching

Electronics Hardware Engineer

single-board solution that seats an Arduino Nano and handles full DCC interfacing for model-rail accessory control. The board’s sole purpose is to speak DCC, pass the signal cleanly to the Nano, and drive external accessory decoders (LEDs)— no motor or sound functions, just reliable accessory switching

Electronics Hardware Engineer

single-board solution that seats an Arduino Nano and handles full DCC interfacing for model-rail accessory control. The board’s sole purpose is to speak DCC, pass the signal cleanly to the Nano, and drive external accessory decoders (LEDs)— no motor or sound functions, just reliable accessory switching

Electronics Hardware Engineer

13722898
Designed and developed an industrial data monitoring system for logging analog and digital data sensors Uses ESP32 C3 modules, USB for programming, and I/O is isolated and voltage proof

Product Development for ESP32C3

Designed and developed an industrial data monitoring system for logging analog and digital data sensors Uses ESP32 C3 modules, USB for programming, and I/O is isolated and voltage proof

Product Development for ESP32C3

Designed and developed an industrial data monitoring system for logging analog and digital data sensors Uses ESP32 C3 modules, USB for programming, and I/O is isolated and voltage proof

Product Development for ESP32C3

Designed and developed an industrial data monitoring system for logging analog and digital data sensors Uses ESP32 C3 modules, USB for programming, and I/O is isolated and voltage proof

Product Development for ESP32C3

Designed and developed an industrial data monitoring system for logging analog and digital data sensors Uses ESP32 C3 modules, USB for programming, and I/O is isolated and voltage proof

Product Development for ESP32C3

Designed and developed an industrial data monitoring system for logging analog and digital data sensors Uses ESP32 C3 modules, USB for programming, and I/O is isolated and voltage proof

Product Development for ESP32C3

13722892
This is our first product as OEM. We supplied ESP32-based WiFi data logger modules to a prime bakery company in India. The whole project required providing and installing a temperature data logger for cold counters of franchise outlets. Along with my team, I designed Hardware, developed firmware, took care of manufacturing, and shipped 250+ devices The device uses 1. ESP32 wroom modules 2. DS18B20 sensors 3. USB for Power 4. Programming over TTL

Electronics Engineer and Consultant

This is our first product as OEM. We supplied ESP32-based WiFi data logger modules to a prime bakery company in India. The whole project required providing and installing a temperature data logger for cold counters of franchise outlets. Along with my team, I designed Hardware, developed firmware, took care of manufacturing, and shipped 250+ devices The device uses 1. ESP32 wroom modules 2. DS18B20 sensors 3. USB for Power 4. Programming over TTL

Electronics Engineer and Consultant

12440763
Designed and manufactured industrial grade mixed signal board with nuvoton controllers to measure and control industrial grade systems as of now 50+ of this device has been manufactured

Mixed Signal Board Design

Designed and manufactured industrial grade mixed signal board with nuvoton controllers to measure and control industrial grade systems as of now 50+ of this device has been manufactured

Mixed Signal Board Design

Designed and manufactured industrial grade mixed signal board with nuvoton controllers to measure and control industrial grade systems as of now 50+ of this device has been manufactured

Mixed Signal Board Design

Designed and manufactured industrial grade mixed signal board with nuvoton controllers to measure and control industrial grade systems as of now 50+ of this device has been manufactured

Mixed Signal Board Design

Designed and manufactured industrial grade mixed signal board with nuvoton controllers to measure and control industrial grade systems as of now 50+ of this device has been manufactured

Mixed Signal Board Design

12440758
Design this ESP32 + LoRa board with muliple industrial sensor and provision to connect wired industrial protocols. as of now 200+ pcs of this system has been installed

Multi Sensor IoT Data Logger

Design this ESP32 + LoRa board with muliple industrial sensor and provision to connect wired industrial protocols. as of now 200+ pcs of this system has been installed

Multi Sensor IoT Data Logger

Design this ESP32 + LoRa board with muliple industrial sensor and provision to connect wired industrial protocols. as of now 200+ pcs of this system has been installed

Multi Sensor IoT Data Logger

Design this ESP32 + LoRa board with muliple industrial sensor and provision to connect wired industrial protocols. as of now 200+ pcs of this system has been installed

Multi Sensor IoT Data Logger

Design this ESP32 + LoRa board with muliple industrial sensor and provision to connect wired industrial protocols. as of now 200+ pcs of this system has been installed

Multi Sensor IoT Data Logger

Design this ESP32 + LoRa board with muliple industrial sensor and provision to connect wired industrial protocols. as of now 200+ pcs of this system has been installed

Multi Sensor IoT Data Logger

Design this ESP32 + LoRa board with muliple industrial sensor and provision to connect wired industrial protocols. as of now 200+ pcs of this system has been installed

Multi Sensor IoT Data Logger

13783568
Provided this project to Industrial automation client this device uses ESP32 as it core and logs data of 3 sensor connected through Isolated digital inputs while also providing a provision to control 2 outputs connected through relays

Electronics Engineer & ODM supplier

Provided this project to Industrial automation client this device uses ESP32 as it core and logs data of 3 sensor connected through Isolated digital inputs while also providing a provision to control 2 outputs connected through relays

Electronics Engineer & ODM supplier

Provided this project to Industrial automation client this device uses ESP32 as it core and logs data of 3 sensor connected through Isolated digital inputs while also providing a provision to control 2 outputs connected through relays

Electronics Engineer & ODM supplier

Provided this project to Industrial automation client this device uses ESP32 as it core and logs data of 3 sensor connected through Isolated digital inputs while also providing a provision to control 2 outputs connected through relays

Electronics Engineer & ODM supplier

13783535
single-board solution that seats an Arduino Nano and handles full DCC interfacing for model-rail accessory control. The board’s sole purpose is to speak DCC, pass the signal cleanly to the Nano, and drive external accessory decoders (LEDs)— no motor or sound functions, just reliable accessory switching

Electronics Hardware Engineer

single-board solution that seats an Arduino Nano and handles full DCC interfacing for model-rail accessory control. The board’s sole purpose is to speak DCC, pass the signal cleanly to the Nano, and drive external accessory decoders (LEDs)— no motor or sound functions, just reliable accessory switching

Electronics Hardware Engineer

single-board solution that seats an Arduino Nano and handles full DCC interfacing for model-rail accessory control. The board’s sole purpose is to speak DCC, pass the signal cleanly to the Nano, and drive external accessory decoders (LEDs)— no motor or sound functions, just reliable accessory switching

Electronics Hardware Engineer

single-board solution that seats an Arduino Nano and handles full DCC interfacing for model-rail accessory control. The board’s sole purpose is to speak DCC, pass the signal cleanly to the Nano, and drive external accessory decoders (LEDs)— no motor or sound functions, just reliable accessory switching

Electronics Hardware Engineer

single-board solution that seats an Arduino Nano and handles full DCC interfacing for model-rail accessory control. The board’s sole purpose is to speak DCC, pass the signal cleanly to the Nano, and drive external accessory decoders (LEDs)— no motor or sound functions, just reliable accessory switching

Electronics Hardware Engineer

single-board solution that seats an Arduino Nano and handles full DCC interfacing for model-rail accessory control. The board’s sole purpose is to speak DCC, pass the signal cleanly to the Nano, and drive external accessory decoders (LEDs)— no motor or sound functions, just reliable accessory switching

Electronics Hardware Engineer

13722898
Designed and developed an industrial data monitoring system for logging analog and digital data sensors Uses ESP32 C3 modules, USB for programming, and I/O is isolated and voltage proof

Product Development for ESP32C3

Designed and developed an industrial data monitoring system for logging analog and digital data sensors Uses ESP32 C3 modules, USB for programming, and I/O is isolated and voltage proof

Product Development for ESP32C3

Designed and developed an industrial data monitoring system for logging analog and digital data sensors Uses ESP32 C3 modules, USB for programming, and I/O is isolated and voltage proof

Product Development for ESP32C3

Designed and developed an industrial data monitoring system for logging analog and digital data sensors Uses ESP32 C3 modules, USB for programming, and I/O is isolated and voltage proof

Product Development for ESP32C3

Designed and developed an industrial data monitoring system for logging analog and digital data sensors Uses ESP32 C3 modules, USB for programming, and I/O is isolated and voltage proof

Product Development for ESP32C3

Designed and developed an industrial data monitoring system for logging analog and digital data sensors Uses ESP32 C3 modules, USB for programming, and I/O is isolated and voltage proof

Product Development for ESP32C3

13722892
This is our first product as OEM. We supplied ESP32-based WiFi data logger modules to a prime bakery company in India. The whole project required providing and installing a temperature data logger for cold counters of franchise outlets. Along with my team, I designed Hardware, developed firmware, took care of manufacturing, and shipped 250+ devices The device uses 1. ESP32 wroom modules 2. DS18B20 sensors 3. USB for Power 4. Programming over TTL

Electronics Engineer and Consultant

This is our first product as OEM. We supplied ESP32-based WiFi data logger modules to a prime bakery company in India. The whole project required providing and installing a temperature data logger for cold counters of franchise outlets. Along with my team, I designed Hardware, developed firmware, took care of manufacturing, and shipped 250+ devices The device uses 1. ESP32 wroom modules 2. DS18B20 sensors 3. USB for Power 4. Programming over TTL

Electronics Engineer and Consultant

12440763
Designed and manufactured industrial grade mixed signal board with nuvoton controllers to measure and control industrial grade systems as of now 50+ of this device has been manufactured

Mixed Signal Board Design

Designed and manufactured industrial grade mixed signal board with nuvoton controllers to measure and control industrial grade systems as of now 50+ of this device has been manufactured

Mixed Signal Board Design

Designed and manufactured industrial grade mixed signal board with nuvoton controllers to measure and control industrial grade systems as of now 50+ of this device has been manufactured

Mixed Signal Board Design

Designed and manufactured industrial grade mixed signal board with nuvoton controllers to measure and control industrial grade systems as of now 50+ of this device has been manufactured

Mixed Signal Board Design

Designed and manufactured industrial grade mixed signal board with nuvoton controllers to measure and control industrial grade systems as of now 50+ of this device has been manufactured

Mixed Signal Board Design

12440758
Design this ESP32 + LoRa board with muliple industrial sensor and provision to connect wired industrial protocols. as of now 200+ pcs of this system has been installed

Multi Sensor IoT Data Logger

Design this ESP32 + LoRa board with muliple industrial sensor and provision to connect wired industrial protocols. as of now 200+ pcs of this system has been installed

Multi Sensor IoT Data Logger

Design this ESP32 + LoRa board with muliple industrial sensor and provision to connect wired industrial protocols. as of now 200+ pcs of this system has been installed

Multi Sensor IoT Data Logger

Design this ESP32 + LoRa board with muliple industrial sensor and provision to connect wired industrial protocols. as of now 200+ pcs of this system has been installed

Multi Sensor IoT Data Logger

Design this ESP32 + LoRa board with muliple industrial sensor and provision to connect wired industrial protocols. as of now 200+ pcs of this system has been installed

Multi Sensor IoT Data Logger

Design this ESP32 + LoRa board with muliple industrial sensor and provision to connect wired industrial protocols. as of now 200+ pcs of this system has been installed

Multi Sensor IoT Data Logger

Design this ESP32 + LoRa board with muliple industrial sensor and provision to connect wired industrial protocols. as of now 200+ pcs of this system has been installed

Multi Sensor IoT Data Logger

4.4 · 65 Avis
Commentaires
Avatar de l'utilisateur

Arduino Nano DCC PCB Design • $30 USD

Abbas was very quality oriented and asked relevant questions about the project before being awarded the project. He has excellent knowledge on the DCC interfacing from previous projects. Minor changes during the project was implemented very fast and reliable. I will definately hire again - in fact I already am doing a new project with him :-)

Jan P.

@janpetersen

•

Drapeau de

Norager, Denmark

•

il y a 3 mois

Partager

E

switching mode power supply • $750 AUD

Project delayed drastically. Not sincere in his wordings. At the end of the project, before releasing the last milestone, i ask him whether all part is readily available on market and replied yes. Subsequently milestone released. Now manufacturer cannot find 5 of the parts. Contact in freelancer no reply. Contact in whatsapp, he replied the inductor need manufacture and that not call parts. Anyway milestone released ad a loss to me. DO NOT BE DECEIVED BY HIM!!!

Edmund L.

@edmund8687

•

Drapeau de

Sibu, Malaysia

•

il y a 2 ans

Partager

Avatar de l'utilisateur

High-Resolution CMOS Sensor PCB Design • $300 USD

Very professional, enjoy to work with him.

Md R.

@PCBDESIGNER38

•

Drapeau de

Patuakhali, Bangladesh

•

il y a 2 ans

Partager

A

Electronics Consultant Needed for Wearable Health Monitoring Device PCB Cost Optimization • ₹12 500 INR

Working with Mr. Abbas on an electronic circuit design project was an absolute pleasure. His profound knowledge in the field, coupled with his prompt and dedicated approach, significantly contributed to the success of our collaboration. Mr. Abbas is a reliable and efficient freelancer who I highly recommend for anyone seeking top-notch electronic circuit design services.

Riyaz Ahamed K.

@abzerotech

•

Drapeau de

Malappuram, India

•

il y a 2 ans

Partager

M

Rf pcb design • ₹5 000 INR

Highly skilled engineer and can complete the task in given time....good in pcb design...

Ramakrishna M.

@mrkiapl

•

Drapeau de

Chennai, India

•

il y a 2 ans

Partager

Expérience

Electronic Engineer

août, 2018 - janv., 2020

•

1 an, 5 mois

3D prototyperz

août, 2018 - janv., 2020

•

1 an, 5 mois

At 3d prototyperz, I worked as Electronics Engineer and was responsible for designing developing and programming electronics systems for 3d printers and other machineries

août, 2018 - janv., 2020

•

1 an, 5 mois

Formation

Rajiv Gandhi Prodyogiki Vishwavidyalaya

2016 - 2020

•

4 ans

Bachelors of Engineering

Drapeau de

India

2016 - 2020

•

4 ans

Certifications

P

Preferred Freelancer Program SLA

Basic Numeracy - Level 1

Basic Numeracy

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