RF Locator Firmware Development (nRF52840 & SX1262) -- 2

# Embedded Firmware Developer Needed for RF Locator Device

We are looking for an experienced Embedded Firmware Engineer to develop firmware for an nRF52840 & SX1262-based locator product. The PCB design and hardware development have already been completed. The project scope is focused on firmware development, integration, and testing.

### Responsibilities

* Develop firmware for RF transmitter and receiver communication
* Implement device pairing functionality
* Control LED indication patterns and status indicators
* Implement the speaker evaluation functionality
* Implement audio playback functionality
* Develop battery monitoring and low-power features
* Integrate and test all system functions
* Provide source code and documentation

### Requirements

* Strong Embedded C/C++ experience
* Experience with MCU firmware development
* Experience with RF/wireless communication systems
* Familiarity with low-power embedded design
* Experience debugging hardware prototypes

### Deliverables

* Complete firmware source code
* Build/project files
* Firmware documentation
* Test and validation report

Please include your relevant experience, estimated timeline, and fixed-price quotation when applying.