SensorMessages.hpp

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#ifndef DAQ_SENSOR_MESSAGES_HPP
#define DAQ_SENSOR_MESSAGES_HPP
 
#include <cstdint>
 
#include "../../CommsMessage.hpp"
 
namespace comms {
namespace messages {
namespace sensor {
 
/**
 * @brief Raw Pressure Transducer sample message for Elodin
 *
 * Simplified schema focused on raw sensor data.
 * Calibrated values will be added in a separate table later.
 *
 * CRITICAL: Includes padding bytes to ensure uint32_t fields are 4-byte aligned
 * Layout: uint64_t (8) + uint8_t (1) + padding[3] (3) + uint32_t (4) + uint32_t (4) + uint8_t (1) =
 * 21 bytes
 */
using RawPTMessage =
    CommsMessage<uint64_t,                // (0) timestamp_ns - monotonic timestamp in nanoseconds
                 uint8_t,                 // (1) channel_id - sensor channel identifier
                 std::array<uint8_t, 3>,  // (2) padding - 3 bytes to align uint32_t to 4-byte
                                          // boundary
                 uint32_t,                // (3) raw_adc_counts - raw ADC reading
                 uint32_t,  // (4) sample_timestamp_ms - embedded timestamp in milliseconds
                 uint8_t    // (5) status_flags - status/health flags
                 >;
 
/**
 * @brief Raw Thermocouple sample message for Elodin
 * CRITICAL: Includes padding bytes to ensure uint32_t fields are 4-byte aligned
 */
using RawTCMessage =
    CommsMessage<uint64_t,                // (0) timestamp_ns - monotonic timestamp in nanoseconds
                 uint8_t,                 // (1) channel_id - sensor channel identifier
                 std::array<uint8_t, 3>,  // (2) padding - 3 bytes to align uint32_t to 4-byte
                                          // boundary
                 uint32_t,                // (3) raw_adc_counts - raw ADC reading
                 uint32_t,  // (4) sample_timestamp_ms - embedded timestamp in milliseconds
                 uint8_t    // (5) status_flags - status/health flags
                 >;
 
/**
 * @brief Raw RTD sample message for Elodin
 * CRITICAL: Includes padding bytes to ensure uint32_t fields are 4-byte aligned
 */
using RawRTDMessage =
    CommsMessage<uint64_t,                // (0) timestamp_ns - monotonic timestamp in nanoseconds
                 uint8_t,                 // (1) channel_id - sensor channel identifier
                 std::array<uint8_t, 3>,  // (2) padding - 3 bytes to align uint32_t to 4-byte
                                          // boundary
                 uint32_t,  // (3) raw_resistance_counts - ADC counts representing resistance
                 uint32_t,  // (4) sample_timestamp_ms - embedded timestamp in milliseconds
                 uint8_t    // (5) status_flags - status/health flags
                 >;
 
/**
 * @brief Raw Load Cell sample message for Elodin
 * CRITICAL: Includes padding bytes to ensure uint32_t fields are 4-byte aligned
 */
using RawLCMessage =
    CommsMessage<uint64_t,                // (0) timestamp_ns - monotonic timestamp in nanoseconds
                 uint8_t,                 // (1) channel_id - sensor channel identifier
                 std::array<uint8_t, 3>,  // (2) padding - 3 bytes to align uint32_t to 4-byte
                                          // boundary
                 uint32_t,                // (3) raw_adc_counts - raw ADC reading
                 uint32_t,  // (4) sample_timestamp_ms - embedded timestamp in milliseconds
                 uint8_t    // (5) status_flags - status/health flags
                 >;
 
/** Actuator state (0=closed, 1=open) from current-sense ADC threshold. Packet ID [0x31, ch]. */
using ActuatorStateMessage = CommsMessage<uint64_t,  // (0) timestamp_ns
                                          uint8_t,   // (1) channel_id - 1-based
                                          uint8_t    // (2) actuator_state - 0=closed, 1=open
                                          >;
 
}  // namespace sensor
}  // namespace messages
using comms::CommsMessage;
}  // namespace comms
 
#endif  // DAQ_SENSOR_MESSAGES_HPP