I will develop esp32, stm32 and arduino firmware for your electronic product
Gig Summary
IoT, Ai and Embedded Systems Engineer
About this Gig
I develop production ready firmware for ESP32, STM32 and Arduino based products: device drivers, sensor and motor control, RTOS applications and low power designs, built to run reliably in the field.
What I deliver
- Complete firmware for new products, from first prototype to production
- Drivers for sensors, displays, motors, memory and communication peripherals
- FreeRTOS applications with clean task, queue and interrupt design
- Motor control for stepper, BLDC and servo motors
- Low power firmware with sleep modes for battery powered devices
- Bootloaders and secure firmware updates
- Debugging, fixing and porting of existing firmware
Technical scope
- ESP32, ESP32 S3, ESP32 C3, STM32 F0, F1, F4, L4, G4, H7
- C and C++, Arduino, ESP-IDF, STM32Cube HAL and LL, FreeRTOS, bare metal
- I2C, SPI, UART, CAN, RS485, USB, ADC, PWM, DMA, timers
- Debugging with JTAG, SWD
I write firmware that is stable, efficient and easy for your team to maintain, with clear structure and documentation. You receive full source code and project files.
Contact me before placing an order. I will review your project and timeline and send you an accurate quote.
My Portfolio
FAQ
Which microcontrollers do you work with?
Arduino boards, ESP32, ESP32 S3 and C3, and STM32 F0, F1, F4, L4, G4 and H7 series. If your product uses another microcontroller, send me the part number and I will confirm before we start.
My prototype runs on Arduino. Can you take it to production?
Yes. Arduino is great for prototypes. When your product moves to production, I can port the code to ESP-IDF or STM32Cube for better reliability, lower power and lower unit cost.
Do I need to send you hardware?
Usually not. My office has the common ESP32 and STM32 boards, sensors and test equipment, so I develop on real hardware from day one. For custom boards, one sample unit lets me test on your exact hardware.
Can you fix or finish my existing firmware?
Yes. Send me your code and a description of the problem. I will find the cause, fix it and explain what was wrong.
Do you use an RTOS?
Yes. I use FreeRTOS with a clean task, queue and interrupt structure, or bare metal when your application needs the smallest footprint.
Can you make my device run longer on battery?
Yes. I use sleep modes, clock gating and peripheral power control to extend battery life, and I measure the actual current draw.
Can the firmware be updated after the product ships?
Yes. I build bootloaders and firmware updates over UART, USB or wireless, with checks that keep the device safe if an update fails.
What do you need from me to start?
Your microcontroller, schematic or board details, the sensors and peripherals used, and what the firmware should do. A short description is enough to start.
Do I get the source code?
Yes. You receive full source code, project files and documentation. You own all of it.
Can you sign an NDA?
Yes. Send it before sharing your project files and I will sign it.
27 reviews for this Gig
| (25) | ||
| (0) | ||
| (0) | ||
| (1) | ||
| (1) |
Rating Breakdown
- Seller communication level
- Quality of delivery
- Value of delivery
Sort By
T theunknown15

United Kingdom
Went above and beyond and answered all of my questions.
$100-$200
Price
9 days
Duration
Helpful?J joeschinn

United States
Phenomenal work. and quick turnaround!
$50
Price
1 day
Duration
Helpful?A ahmed_ali099

United Kingdom
very helpful, explained all parts perfectly will definitely work with fahad in the future
$200-$400
Price
6 days
Duration
Helpful?D dominikpremauer

Germany
Very good!
$50
Price
1 day
Duration
Helpful?Z zer0freak

United States
Went the extra mile to assist with my problems.
$50-$100
Price
1 day
Duration
Helpful?
27 reviews for this Gig
| (25) | ||
| (0) | ||
| (0) | ||
| (1) | ||
| (1) |
Rating Breakdown
- Seller communication level
- Quality of delivery
- Value of delivery
Sort By
T theunknown15

United Kingdom
Went above and beyond and answered all of my questions.
$100-$200
Price
9 days
Duration
Helpful?J joeschinn

United States
Phenomenal work. and quick turnaround!
$50
Price
1 day
Duration
Helpful?A ahmed_ali099

United Kingdom
very helpful, explained all parts perfectly will definitely work with fahad in the future
$200-$400
Price
6 days
Duration
Helpful?D dominikpremauer

Germany
Very good!
$50
Price
1 day
Duration
Helpful?Z zer0freak

United States
Went the extra mile to assist with my problems.
$50-$100
Price
1 day
Duration
Helpful?

