MENJELAJAH

Electrical Engineering

Microcontroller

5.0

(46 ulasan)

Gambar muka depan profil

Marko A.

@markoa7

5.0

46

6.7

6.7

95%

Hardware Design| PCB & RF Design| Reverse-Engineer

$40 USD / Jam

・

Serbia (3:26 PG)

・

Menyertai pada September 12, 2024

・

3 Cadangan

$40 USD / Jam

・

Thank you for visiting my profile. My name is Marko Aleksic, a dedicated electronic hardware and firmware engineer specializing in creating innovative and high-quality solutions for electronic product development. I am passionate about transforming ideas into reality through meticulous design and development -Core Competencies: -PCB Design & Development: Expert in designing reliable, high-performance printed circuit boards (PCBs). Specialization in power supply circuits (DC-DC, AC-DC conversions) and multilayer designs for embedded systems. Proven track record in developing efficient LED driver circuits and RF PCB layouts. -Firmware Development: Extensive experience programming microcontrollers including STM32, DSPIC, ESP32 and ESP8266. Mastery of communication protocols such as UART, SPI, Ethernet, USB, CAN, and MODBUS for seamless integration. Proficient in implementing wireless technologies including Wi-Fi, Bluetooth, and ZigBee. -RF Design & Analysis: Strong capabilities in RF circuit design, antenna optimization, and simulation for applications like WiFi, Bluetooth, and RFID. Expertise in developing RF filters, splitters, transceivers, and power amplifiers tailored to specific application needs. I am committed to delivering cost-effective, high-quality solutions without compromising performance or deadlines. I welcome the opportunity to connect and discuss how I can contribute to your projects.

Pengesahan

Tepat pada masa

100%

Mengikut bajet

100%

Kadar terima

75%

Kadar upah semula

9%

Lihat semua Electronics Engineers dalam Serbia

Portfolio

Portfolio

NFC readers are the active components in NFC transactions. They have the ability to read and write tags, and can communicate directly with other devices. Readers are used in smartphones and other portable devices for payment services and a multitude of other applications.
It is mounted inside a cylinder with a radius of 15 mm and a length of 45 mm.

NFC Card Reader with Antenna

13117814

Completed Arduino based firmware for hotplate cooking device. The setup includes a 200W heating element, relay, temperature sensor, pushbutton switch and temperature probe.

Requirements:
- 1-step cooking program for porridge
- Sequence:
- Heat to 40°C and hold for 30 minutes
- Hold at 50°C for 30 minutes
- Hold at 60°C for 30 minutes
- Hold at 70°C for 30 minutes
- Then power off
- Cooking starts with a simple push of a button.
- No additional safety features required.
- No notifications required when the step is completed.

Arduino Firmware development

Completed Arduino based firmware for hotplate cooking device. The setup includes a 200W heating element, relay, temperature sensor, pushbutton switch and temperature probe.

Requirements:
- 1-step cooking program for porridge
- Sequence:
- Heat to 40°C and hold for 30 minutes
- Hold at 50°C for 30 minutes
- Hold at 60°C for 30 minutes
- Hold at 70°C for 30 minutes
- Then power off
- Cooking starts with a simple push of a button.
- No additional safety features required.
- No notifications required when the step is completed.

Arduino Firmware development

I have designed an PN532 Module in a custom shape and size. The device is able to read/write/emulate NFC/RFID cards/tags using an ESP32 WROOM32.

RFID/NFC module with PN532

I have designed an PN532 Module in a custom shape and size. The device is able to read/write/emulate NFC/RFID cards/tags using an ESP32 WROOM32.

RFID/NFC module with PN532

I have designed an PN532 Module in a custom shape and size. The device is able to read/write/emulate NFC/RFID cards/tags using an ESP32 WROOM32.

RFID/NFC module with PN532

I design a PCB circuit that measures the rotation of the shaft with about 8 turns and provides a proportional signal between 4 and 20mA to a PLC.

Design Small Signal Processing Circu

The board needs to handle an input voltage range of 12-16V and step down to 5V at 1.5 amps. It will only be used for charging a device, no data transmission.

USB-C Charger

The board needs to handle an input voltage range of 12-16V and step down to 5V at 1.5 amps. It will only be used for charging a device, no data transmission.

USB-C Charger

The board needs to handle an input voltage range of 12-16V and step down to 5V at 1.5 amps. It will only be used for charging a device, no data transmission.

USB-C Charger

12853480

I have an existing ESP32 audio controller and integrated 4 motorized faders connected to an Atmega328

This is a MUSIC audio mixer that controls the volume using motorized faders.

When I move the faders in the browser mixer, they move on the real hardware faders with their own motors.

Integrate Motorized Faders withESP32

I have an existing ESP32 audio controller and integrated 4 motorized faders connected to an Atmega328

This is a MUSIC audio mixer that controls the volume using motorized faders.

When I move the faders in the browser mixer, they move on the real hardware faders with their own motors.

Integrate Motorized Faders withESP32

I have an existing ESP32 audio controller and integrated 4 motorized faders connected to an Atmega328

This is a MUSIC audio mixer that controls the volume using motorized faders.

When I move the faders in the browser mixer, they move on the real hardware faders with their own motors.

Integrate Motorized Faders withESP32

NFC readers are the active components in NFC transactions. They have the ability to read and write tags, and can communicate directly with other devices. Readers are used in smartphones and other portable devices for payment services and a multitude of other applications.
It is mounted inside a cylinder with a radius of 15 mm and a length of 45 mm.

NFC Card Reader with Antenna

13117814

Completed Arduino based firmware for hotplate cooking device. The setup includes a 200W heating element, relay, temperature sensor, pushbutton switch and temperature probe.

Requirements:
- 1-step cooking program for porridge
- Sequence:
- Heat to 40°C and hold for 30 minutes
- Hold at 50°C for 30 minutes
- Hold at 60°C for 30 minutes
- Hold at 70°C for 30 minutes
- Then power off
- Cooking starts with a simple push of a button.
- No additional safety features required.
- No notifications required when the step is completed.

Arduino Firmware development

Completed Arduino based firmware for hotplate cooking device. The setup includes a 200W heating element, relay, temperature sensor, pushbutton switch and temperature probe.

Requirements:
- 1-step cooking program for porridge
- Sequence:
- Heat to 40°C and hold for 30 minutes
- Hold at 50°C for 30 minutes
- Hold at 60°C for 30 minutes
- Hold at 70°C for 30 minutes
- Then power off
- Cooking starts with a simple push of a button.
- No additional safety features required.
- No notifications required when the step is completed.

Arduino Firmware development

I have designed an PN532 Module in a custom shape and size. The device is able to read/write/emulate NFC/RFID cards/tags using an ESP32 WROOM32.

RFID/NFC module with PN532

I have designed an PN532 Module in a custom shape and size. The device is able to read/write/emulate NFC/RFID cards/tags using an ESP32 WROOM32.

RFID/NFC module with PN532

I have designed an PN532 Module in a custom shape and size. The device is able to read/write/emulate NFC/RFID cards/tags using an ESP32 WROOM32.

RFID/NFC module with PN532

I design a PCB circuit that measures the rotation of the shaft with about 8 turns and provides a proportional signal between 4 and 20mA to a PLC.

Design Small Signal Processing Circu

The board needs to handle an input voltage range of 12-16V and step down to 5V at 1.5 amps. It will only be used for charging a device, no data transmission.

USB-C Charger

The board needs to handle an input voltage range of 12-16V and step down to 5V at 1.5 amps. It will only be used for charging a device, no data transmission.

USB-C Charger

The board needs to handle an input voltage range of 12-16V and step down to 5V at 1.5 amps. It will only be used for charging a device, no data transmission.

USB-C Charger

12853480

I have an existing ESP32 audio controller and integrated 4 motorized faders connected to an Atmega328

This is a MUSIC audio mixer that controls the volume using motorized faders.

When I move the faders in the browser mixer, they move on the real hardware faders with their own motors.

Integrate Motorized Faders withESP32

I have an existing ESP32 audio controller and integrated 4 motorized faders connected to an Atmega328

This is a MUSIC audio mixer that controls the volume using motorized faders.

When I move the faders in the browser mixer, they move on the real hardware faders with their own motors.

Integrate Motorized Faders withESP32

I have an existing ESP32 audio controller and integrated 4 motorized faders connected to an Atmega328

This is a MUSIC audio mixer that controls the volume using motorized faders.

When I move the faders in the browser mixer, they move on the real hardware faders with their own motors.

Integrate Motorized Faders withESP32

5.0 · 46 Ulasan

Ulasan

I

PCB Design Verification • $50 USD

Greate fun and help was amazing

Electrical Engineering

+1 lagi

Imile D.

@imile

•

Vereeniging, South Africa

•

4 hari yang lalu

Kongsi

PCB Gerber File Creation from Schematic • $20 USD

Great work. fast and professional. .. Highly recomended

Electrical Engineering

+3 lagi

Rodrigo M.

@rodrigo581

•

Sao Paulo, Brazil

•

1 bulan yang lalu

Kongsi

S

PCB for Light Sensor & LED • £20 GBP

Very fast turnaround and excellent communication. Development did require multiple iterations to get rid of bugs, but I'm happy with the outcome. Thanks!

Microcontroller

Electrical Engineering

Bill of Materials (BOM) Analysis

+3 lagi

Steven M.

@stevenm121

•

Cambridge, United Kingdom

•

1 bulan yang lalu

Kongsi

J

Single-Layer Flexible PCB Design • $20 AUD

Marko gave attention to detail and clear communication, very professional work. Thank you.

DFM (Design for Manufacturing)

James C.

@jamesc219

•

Adelaide, Australia

•

1 bulan yang lalu

Kongsi

ESP32 eBike Telemetry PCB Design • $400 USD

Great to work with, finished the project early and very knowledgeable, I hope to keep collaborating.

Electrical Engineering

+2 lagi

Manuel D.

@mdurazob

•

Mexico City, Mexico

•

2 bulan yang lalu

Kongsi

ECAD Designer

Sep, 2024 - Sekarang

•

1 tahun, 5 bulan

ECAD Central, LLC

Sep, 2024 - Sekarang

•

1 tahun, 5 bulan

ECAD Central has 15 years of expertise in PCB Design. We boast over a decade of expertise in Altium Database products, showcasing extensive proficiency. We also now support PCB Design services in OrCAD, Allegro, Xpedition, and KiCAD. Transitioning from OrCAD CIS/CIP to Altium 365 or need to go from Altium 365 to OrCAD CIS/CIP? Count on us for seamless migration support.

Phoenix, United States

Sep, 2024 - Sekarang

•

1 tahun, 5 bulan

Electronic Engineer

Sep, 2021 - Ogo, 2024

•

2 tahun, 11 bulan

Promwad, Electronic Design Company

Sep, 2021 - Ogo, 2024

•

2 tahun, 11 bulan

Design of electrical circuits. Design of military board with CAN interface, I2C, USB. Written program code for STM controller.

Minsk, Belarus

Sep, 2021 - Ogo, 2024

•

2 tahun, 11 bulan

PCB Designer

Apr, 2022 - Ogo, 2022

•

4 bulan, 1 hari

Senient Systems Inc.

Apr, 2022 - Ogo, 2022

•

4 bulan, 1 hari

Routing RF PCBs and high-speed - digital printed circuit boards.

Oakville, Canada

Apr, 2022 - Ogo, 2022

•

4 bulan, 1 hari

Belgrade University

2017 - 2021

•

4 tahun

Bachelor of Applied Science

Serbia

2017 - 2021

•

4 tahun

P

Preferred Freelancer Program SLA

Freelancer Orientation