C3 State

The C3’s main state machine

States

class oresat_c3.C3State(value)[source]

All valid C3 states

OFFLINE = 65: This state is never actually reachable by the device. Reset vector is PRE_DEPLOY.

PRE_DEPLOY = 66: Holding state after deployment of satellite but before deployment of antennas. Ensures a minimum amount of time passes before attempting to deploy antennas and going active.

DEPLOY = 67: Antenna deployment state. Attempts to deploy antennas several times before moving to Standby.

STANDBY = 68: Satellite is functional but in standby state. Battery level is too low or tx is disabled.

BEACON = 69: Active beaconing state. Broadcasts telemetry packets via radio periodically.

EDL = 70: Currently receiving and/or transmitting engineering data link packets with a ground station.

State Machine

For specific timeouts and delays values, see the oresat_c3.dcf file.

Note

State is periodically save to F-RAM. On a reset, the last state will be the initial state.

        stateDiagram-v2
    OFFLINE --> PRE_DEPLOY: Powered on with a cleared F-RAM
    PRE_DEPLOY --> DEPLOY: After a timeout and a good battery level
    DEPLOY --> STANDBY: After multiple deploy attempts with a short delay between each
    STANDBY --> BEACON: Tx is enabled and battery level is good
    STANDBY --> EDL: On a valid EDL telecommand
    EDL --> BEACON: After a timeout when Tx is enabled and battery level is good
    BEACON --> EDL: On a valid EDL telecommand
    EDL --> STANDBY: After a timeout when Tx is disabled or low battery level
    BEACON --> STANDBY: After a timeout or low battery level