Bluetooth Ringshifter
Bluetooth Ringshifter
Zirbel - Patented Bluetooth Ring Shifter
The Zirbel BLE Ringshifter brings the revolutionary, patented ring shifting concept to the world of wireless bike cockpits – ultra-compact, intuitive, and with outstanding tactile feedback. This innovative technology enables lightning-fast shifting and elevates the riding experience to a new level.
Arendi developed a fully functional Bluetooth Low Energy Ringshifter prototype for Zirbel in a very short time – including hardware, antenna design and firmware – demonstrating its strength in miniaturization, radio technology and fast development cycles.
Initial situation, goals & challenges
Zirbel was looking for an experienced development partner who was proficient in both radio technology and ultra-compact electronics and could produce a market-ready prototype within a very short timeframe.
The key challenge lay in extreme miniaturization and reliable wireless operation within a robust metal housing, all while adhering to a tight deadline for a trade fair presentation.
Project results & customer benefits
The result is a ready-to-use, wireless ring shifter prototype as the basis for a future series production product in the bike sector.
By choosing to tackle the project with Arendi, Zirbel benefits from a complete, turnkey solution – from the wireless architecture to the miniaturized hardware – combined with many years of experience in wireless and embedded product development.
Implemented solution
Arendi developed the ring shifter electronics with Altium Designer based on the nRF54L05, featuring specially designed, miniaturized electronics and a customized antenna design. Targeted 3D radio simulations and innovative design approaches ensured a reliable radio link despite the metallic housing. Simultaneously, firmware based on the nRF Connect SDK and Zephyr RTOS was developed within a few weeks, along with a fully tested trade show prototype.
Technical specifications:
Bluetooth low energy design based on Nordic nRF54L05
Ultra-compact, form-fitting circuit board for extremely small housings
Integration of a curved miniature battery
Optimized antenna design for operation in metal housings
3D simulation of radio emission for design validation
Rapid prototype development including functional firmware within a few weeks
Preparation for energy-efficient battery operation
Competencies
- Bootloader
- Communication Stacks & Protocols
- Firmware architecture
- Firmware-Update over the air (FOTA)
- Hardware interfaces and drivers
- Lean Embedded Firmware
- RTOS and cooperative schedulers
- Sensors
- Small to medium-sized uP systems
- 3D RF Simulations
- Digital Design
- Low power and battery design
- HF-Design
- Schematics & Layout
- Wireless Technologies
Competence areas
- Embedded Systems & Firmware
- Hardware & Design
- Wireless, IoT & Cloud
Technologies
Bluetooth Low Energy (BLE)
Services
- Requirements management
- Product Development
Industry
Sports & Leisure Products
Customer
Zirbel Bike GmbH
Competencies
- Bootloader
- Communication Stacks & Protocols
- Firmware architecture
- Firmware-Update over the air (FOTA)
- Hardware interfaces and drivers
- Lean Embedded Firmware
- RTOS and cooperative schedulers
- Sensors
- Small to medium-sized uP systems
- 3D RF Simulations
- Digital Design
- Low power and battery design
- HF-Design
- Schematics & Layout
- Wireless Technologies
Competence areas
- Embedded Systems & Firmware
- Hardware & Design
- Wireless, IoT & Cloud
Technologies
Bluetooth Low Energy (BLE)
Services
- Requirements management
- Product Development
Industry
Sports & Leisure Products
Customer
Zirbel Bike GmbH
Competencies
- Bootloader
- Communication Stacks & Protocols
- Firmware architecture
- Firmware-Update over the air (FOTA)
- Hardware interfaces and drivers
- Lean Embedded Firmware
- RTOS and cooperative schedulers
- Sensors
- Small to medium-sized uP systems
- 3D RF Simulations
- Digital Design
- Low power and battery design
- HF-Design
- Schematics & Layout
- Wireless Technologies
Competence areas
- Embedded Systems & Firmware
- Hardware & Design
- Wireless, IoT & Cloud
Technologies
Bluetooth Low Energy (BLE)
Services
- Requirements management
- Product Development
Industry
Sports & Leisure Products
Customer
Zirbel Bike GmbH