Skill Profile

BLE & Wireless: Zigbee, LoRa, WiFi

Wireless protocols: BLE, Zigbee, LoRa/LoRaWAN, WiFi, mesh networks

Embedded & IoT Hardware Interfaces

Roles

2

where this skill appears

Levels

5

structured growth path

Mandatory requirements

8

the other 2 optional

Domain

Embedded & IoT

Group

Hardware Interfaces

Last updated

3/17/2026

How to Use

Choose your current level and compare expectations. The items below show what to cover to advance to the next level.

What is Expected at Each Level

The table shows how skill depth grows from Junior to Principal. Click a row to see details.

Role Required Description
Embedded Developer Required Understands the fundamentals of BLE & Wireless: Zigbee, LoRa, WiFi. Applies basic practices in daily work. Follows recommendations from the team and documentation.
IoT Engineer Configures BLE advertising and scanning on ESP32 for IoT devices. Understands GATT profiles, characteristics, and services. Uses nRF Connect for BLE debugging.
Role Required Description
Embedded Developer Required Independently develops BLE devices: custom GATT services, bonding/pairing, connection parameter optimization. Analyzes packets through sniffer.
IoT Engineer Develops custom BLE GATT services for IoT devices. Optimizes connection interval and MTU for balancing power consumption and throughput. Implements BLE mesh.
Role Required Description
Embedded Developer Required Designs BLE mesh networks and multi-connection architectures. Optimizes power consumption in BLE, implements OTA DFU, integrates BLE 5.3 features.
IoT Engineer Required Designs BLE architecture for IoT products with LoRaWAN, Zigbee, Thread support. Ensures compatibility with mobile applications. Implements BLE 5.x long range and coded PHY.
Role Required Description
Embedded Developer Required Defines BLE strategy for the product line. Establishes GATT profile standards, security model, conducts BLE architecture reviews for devices.
IoT Engineer Required Defines wireless strategy for IoT products: BLE vs Zigbee vs Thread vs LoRaWAN. Establishes wireless security and testing standards for the team.
Role Required Description
Embedded Developer Required Shapes BLE/wireless strategy for IoT products: protocol selection (BLE 5.x, Zigbee, Thread, Matter), interoperability architecture, certification planning. Evaluates emerging wireless standards.
IoT Engineer Required Defines enterprise wireless connectivity strategy for IoT. Evaluates new standards (Matter, Wi-Fi HaLow, UWB) for future products. Influences industry standards.

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