Helping TeleAlarm Build Secure, Connected Healthcare Devices

While developing their next generation products, TeleAlarm faced several key challenges:

• Integrating new wireless technologies into their architecture.
• Ensuring security foundations that could meet evolving EU CRA requirements.
• Overcoming hardware and flash limitations to implement secure boot and firmware updates.
• Modernizing legacy wristband firmware to support OTA updates on a complex dual-MCU design.
• Establishing automated testing and a scalable development approach to support their internal team long term.

Witekio engaged early to review and validate TeleAlarm’s architecture, ensuring their hardware choices and communication model would support wireless technologies integration, future security features, and OTA capabilities. Over the course of the collaboration, a multi-disciplinary team of security experts and firmware engineers worked across TeleAlarm’s product range.

Some of the highlights of our collaboration included:

1. Architecture review and wireless technology integration

2. Automated Testing & Knowledge Transfer

Integrated our Pluma automated test framework to validate various functionalities in their development.

Delivered source code, test setups, and models so TeleAlarm’s internal teams could continue development independently and extend CI/CD coverage.

3. Cybersecurity Foundations

Conducted a cybersecurity and architecture workshop, mapping interfaces, storage, and cloud connectivity, allowing TeleAlarm to reach high security-grade devices while complying with the CRA standards and RED directives.

4. TxGo Wristband OTA & Legacy Refactoring

Enhanced the existing TxGo wristband by implementing OTA update mechanisms across a dual-MCU architecture with vendor-specific RSL10 constraints.

Solved unusual hardware limitations - such as a UART peripheral lacking standard parity/stop bits.

Performed targeted refactoring and bug fixes to stabilize the legacy ThreadX based code and extend the product’s lifespan.

With Witekio’s support, TeleAlarm accelerated development on TxGo, a Mobile System Security System:

• Wireless technology integration
• Cybersecurity and architecture overview
• Automated testing implementation
• OTA updates implemented on a complex legacy design, extending product lifespan and reliability.
• Custom low-level firmware solutions resolved challenging hardware limitations.