In the Can Satellite (“CANVAS”), the communication module is responsible for wireless data transmission and reception between the satellite and the ground station.
Roles of the Communication Module in CanSat
Real-Time Communication with Ground Station
Transmits sensor data—such as position, velocity, orientation, and temperature—in real time.
Also receives commands from the ground station (e.g., image capture, system reset) and executes them onboard.Assisting Data Logging
Enables real-time preview or transmission of collected data during flight.
When used alongside an SD card, it allows for redundant data storage, helping to prevent data loss.Recovery Location Identification
Sends GPS coordinates or signal strength data after landing to support post-mission recovery efforts.Emergency Signal Transmission
In unexpected scenarios, the module can broadcast distress signals on a designated frequency for emergency response.
Use Cases of the Communication Module in CanSat
Mission Objective | Communication Module Function | Notes |
|---|---|---|
Altitude-Based Sensor Data Reception | Real-time transmission of temperature, pressure, velocity | Supports flight analysis |
Image Capture Status Sharing | Sends updates to ground station on camera activity and storage status | Aids in mission monitoring |
Location-Based Recovery | Sends GPS data to identify landing site and assist recovery | Critical for post-descent tracking |
System Health Monitoring | Transmits telemetry such as battery voltage and communication status | Enables real-time diagnostics |
Communication Module Specifications
Parameter | Description |
|---|---|
Wireless Protocol | 2.4GHz Wi-Fi (802.11 b/g/n) |
Communication Range | Tens to hundreds of meters (depending on environment) |
Control Interface | Controlled via UART using AT commands or Arduino code |
External Antenna Support | Expandable via U.FL connector |
Size and Weight | Compact and lightweight (ideal for CanSat integration) |
