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I will develop nrf52 low power ble firmware for wearables medical devices and trackers
Embedded Systems Engineer, Firmware, PCB Design, IoT
I am an Electronics Engineer who develops embedded and IoT products from concept to completion. My work includes system architecture, PCB design, firmware development, hardware-software integration, c...
Level 1
Has met certain performance criteria and shows strong potential in the marketplace.
About this Gig
I develop stable, production-ready BLE firmware for nRF52832 and nRF52840 using Nordic SDK and Zephyr RTOS.
From custom BLE services to low power wearables and HMI display interfaces, I write firmware that works reliably in real conditions.
What I cover
- Custom BLE GATT services and profiles
- BLE pairing, bonding, and security
- Nordic SDK and Zephyr RTOS development
- Ultra low power and sleep optimization
- OTA firmware updates (DFU)
- Edge AI and TensorFlow Lite inference on nRF52
- UART, SPI, I2C sensor integration
- Environmental, motion, and biosensor integration
- HMI display development using LVGL library
- Touchscreen and GUI interface for embedded displays
- BLE Mesh networking
- Mobile app BLE communication
What you get
- Clean, well-commented source code
- Tested and working BLE firmware
- Full documentation
- Easy handover
I have built nRF52 firmware for wearables, medical devices, asset trackers, and BLE mesh networks so I understand exactly what reliable BLE communication requires.
Note: Message me before ordering, describe your hardware and I will confirm what I can deliver.
My Portfolio
Other Electronics Engineering Services I Offer
FAQ
Which nRF52 chips do you work with?
Mainly nRF52832 and nRF52840. Both are common in wearables and IoT devices.
Which SDK do you use — Nordic SDK or Zephyr?
Both. Nordic SDK for straightforward BLE projects, Zephyr RTOS for complex or multi-protocol builds.
Can you create custom BLE services for my mobile app?
Yes. I design custom GATT profiles that communicate directly with iOS and Android apps.
Can you optimize for ultra low power consumption?
Yes. Low power optimization is my strength with nRF52 — sleep modes, advertising intervals, and connection parameters all tuned for battery life.
Do you support OTA firmware updates?
Yes. Nordic DFU OTA is included in Standard and Premium packages.
Can you fix my existing nRF52 code?
Yes. Share your code and describe the issue — debugging is part of my service.
Do I get full source code?
Yes. Complete, commented source code with full documentation delivered at the end.
