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GitHub Repository
GATT server emulator for Continuous Glucose Monitoring - Real-time BLE medical device simulation with security research
1 starsPython
Open-source BLE GATT server that simulates a CGM device
by amitgy04·Mar 5, 2026·1 point·0 comments
AI Analysis
●●SolidSolve My ProblemNiche Gem
Standards-compliant CGM simulator removes $100-500 hardware barrier for BLE testing.
Strengths
- •Real-time Bluetooth Glucose Service specification compliance eliminates expensive medical hardware dependency.
- •Clear roadmap including data interception and replay attack simulation for security research.
- •Well-documented GitHub repo with tables for use cases and system requirements.
Weaknesses
- •Linux/Kali only—Windows and macOS support would broaden accessibility significantly.
- •Early stage: Phase 1 complete, but security research features (Phases 2-5) not yet shipped.
Category
Target Audience
Mobile app developers, BLE engineers, security researchers, medical IoT students
Post Description
Hi HN,
I built an open-source Bluetooth Low Energy (BLE) GATT server that emulates a Continuous Glucose Monitor (CGM) device.
The goal was to create a virtual CGM device so developers and researchers can test mobile apps and experiment with BLE protocols without needing expensive medical hardware.
The server implements the Bluetooth Glucose Service and simulates real-time glucose readings.
Some use cases: • Testing CGM mobile applications • Learning how BLE GATT services are implemented • Security research on medical device communication • Educational use for students learning Bluetooth protocols
It runs on Linux/Kali and can be set up in a few steps.
Planned future work includes exploring BLE data interception, replay attack simulations, and potential security hardening approaches.
Would love feedback from people working with BLE, medical devices, or embedded systems.
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