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GM Station

IoT Bluetooth Low Energy (BLE) Hardware EV Charging Station App

Hardware companion app connecting iOS/Android devices to EV charging stations via Bluetooth Low Energy (BLE) for real-time telemetry, session control, and billing.

Client / Industry
IoT Energy & EV Hardware Startup
My Role
Mobile IoT Architect
Engineering Timeline
3 Months
Core Technologies & Architecture Stack
React NativeExpoBluetooth BLESupabaseApple AuthGoogle Sign-inIoT Protocols
🚀 Production Architecture Case Study

GM Station

IoT Bluetooth Low Energy (BLE) Hardware EV Charging Station App

01. The Challenge & Problem

What Needed to Be Solved

EV charging hardware needed reliable offline-first Bluetooth communication without requiring cellular network connectivity at underground parking stations.

02. System Architecture

How I Engineered the Solution

Integrated react-native-ble-plx with native iOS CoreBluetooth & Android BLE stacks. Implemented encrypted packet handshake protocols, live voltage/current telemetry parsing, and session data logging.

03. Core Capabilities & Features

Key Production Features Built

Auto-discovery & low-latency pairing with nearby BLE charging station hardware
Live telemetry monitoring (voltage, current, temperature, kWh delivered)
Encrypted BLE handshake protocol preventing unauthorized station activation
Session start/stop controls with automatic offline data syncing upon reconnecting
Charging history export & energy consumption analytics
04. Production Result & Business Impact

Achieved 99.8% BLE connection reliability across 50+ mobile device models.

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