I will develop esp32, stm32, pic32, or arduino firmware, pcb for iot, embedded devices
EmbeddedC Python Java Rust! Coding! Deliver with GoodQuality
About this Gig
Need reliable embedded firmware for your ARM, STM32, or IoT device? Lets make it happen!
I specialize in firmware development for embedded systems, with over 10+ years of hands-on experience working on industrial equipment, pharmaceutical devices, and connected IoT products.
My Core Expertise:
- Languages: Embedded C, C++, Qt, Python
- Platforms: ESP32, STM32 (M0/M4), PIC (8/16/24/32), AM335x (TI), SiLabs, LPC1788
- Operating Systems: FreeRTOS, SalvoRTOS, Debian Linux (8), Android (4.2.2)
- Device Drivers & BSP Customization for Debian and Android (Device Tree, Kernel Modules)
Tools I Use:
- VS code, STM32CubeIDE, Atollic TrueStudio, Keil MDK, CCS, MPLABX, IAR, AVR Studio, Qt, Easy GUI
Protocols and Interfaces:
- SPI, I2C, UART, ADC, DAC, GPIO, PWM, Modbus, RS-232/RS-485, LCDs, Capacitive Touch, EEPROM, RTC, USB (Host/Device), JSON, TCP/IP
Wireless Communication:
- BLE, WiFi, LoRa, Zigbee, Thread
Specialized Services:
- Bare-metal or RTOS-based firmware
- IoT device firmware with remote control and monitoring
- Board bring-up and peripheral interfacing
Please contact me before placing an order to discuss your project.
Pricing depends on task complexity, hardware, and delivery time.
Other Electronics Engineering Services I Offer
FAQ
Do you have Experience in STM32 or ARM
Yes, expert in STM32 firmware developement
Do you have experience in schematic and PCB design
Yes, Have designed 2layers to 5 layers boards
Do you have experience in kernel customization
Yes, i have customized debian kernel for beaglebone black, Raspbian for raspberry pi, Android kernel for TI AM335x
Have you worked on ESP32
Yes, i have developed more than 20 projects based on ESP32 and developed using ESP IDF platform and Arduino
Can you help if I only have a concept or hardware idea?
Yes! I can assist from concept to code including choosing the right microcontroller and communication interfaces, PCB design and firmware development
Do you provide full product development end to end ?
Yes, we have expertise in Firmware development, PCB design, Assembly, Mobile app development, Cloud app development.
Do you sign NDA
Yes, I respect IP and can sign an NDA if needed.
9 reviews for this Gig
| (9) | ||
| (0) | ||
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Rating Breakdown
- Seller communication level
- Recommend to a friend
- Service as described
Sort By
G 
geekbrainz
Repeat Client

India
Lovely working with you
Helpful?G 
geekbrainz
Repeat Client

India
It was wonderful working with the seller, he took time to understand the problem statement, and came back with questions where there were gaps. He was professional throughout the dealing, and am looking forward to working with him on future projects.
Helpful?W wuyongfeng

United States
very good, fast and high quality
Helpful?E 
enterius
Repeat Client

Poland
It was the second time I worked with Renuraj333 and again I'm very satisfied with this cooperation. He offers professional service for affordable price, good communication and flexibility. I'll be back :)
Helpful?E 
enterius
Repeat Client

Poland
it was a very successful cooperation. Renuraj333 is a professional programmer who met all my expectations without any problems. Very good communication and quick reactions to my comments confirm his professionalism. I will definitely use his services many times.
Helpful?
9 reviews for this Gig
| (9) | ||
| (0) | ||
| (0) | ||
| (0) | ||
| (0) |
Rating Breakdown
- Seller communication level
- Recommend to a friend
- Service as described
Sort By
G 
geekbrainz
Repeat Client

India
Lovely working with you
Helpful?G 
geekbrainz
Repeat Client

India
It was wonderful working with the seller, he took time to understand the problem statement, and came back with questions where there were gaps. He was professional throughout the dealing, and am looking forward to working with him on future projects.
Helpful?W wuyongfeng

United States
very good, fast and high quality
Helpful?E 
enterius
Repeat Client

Poland
It was the second time I worked with Renuraj333 and again I'm very satisfied with this cooperation. He offers professional service for affordable price, good communication and flexibility. I'll be back :)
Helpful?E 
enterius
Repeat Client

Poland
it was a very successful cooperation. Renuraj333 is a professional programmer who met all my expectations without any problems. Very good communication and quick reactions to my comments confirm his professionalism. I will definitely use his services many times.
Helpful?

