Honeywell

HIH[SERIES]-[PACKAGE]-[VARIANT]
│   │          │         │
│   │          │         └── Options/Features code
│   │          └── Package/condensing type (021, 022, 031, 032)
│   └── Series number (4000, 5030, 6130, 8120, etc.)
└── Humidity Integrated Hybrid prefix

Pressure Sensors (HSC/SSC/ABP/MPR series)

HSC[TYPE][OUTPUT][ADDR][RANGE][UNIT][PKG]
│   │      │      │      │      │     │
│   │      │      │      │      │     └── Package code (A3=DIP, A5=SMT)
│   │      │      │      │      └── Pressure unit (PG=psi, MD=mbar, KP=kPa)
│   │      │      │      └── Range (001, 060, 150, etc.)
│   │      │      └── I2C Address (N=default, A-F=alternate)
│   │      └── Output type (R=ratiometric, S=spi, A=analog, D=digital)
│   └── Transfer type (D=differential, M=MEMS, S=standard)
└── High accuracy Sensing prefix (HSC=TruStability, SSC=Standard, ABP=Basic, MPR=MicroPressure)

Hall Effect Sensors (SS4xx/SS5xx series)

SS[FAMILY][TYPE][PKG][VARIANT]
│    │       │    │      │
│    │       │    │      └── Variant number (1, 2, etc.)
│    │       │    └── Package (A=TO-92, E=SOT-89, T=SOT-23, L=SIP)
│    │       └── Model in series (41, 49, 95, etc.)
│    └── Family (4=low-cost, 5=high performance)
└── Solid State prefix

Magnetometers (HMC series)

HMC[SERIES][PKG][-SUFFIX]
│     │      │      │
│     │      │      └── -TR = Tape and Reel
│     │      └── L = LCC package
│     └── Series number (5843, 5883, etc.)
└── Honeywell Magnetic Compass prefix

Package Codes

Humidity Sensors (HIH series)

Pressure Sensors

Hall Effect Sensors

Magnetometers

Product Families

Humidity Sensors (HIH series)

Pressure Sensors

Hall Effect Sensors

Supported Component Types

From HoneywellHandler.getSupportedTypes():

Pattern Matching

Registered Patterns (from initializePatterns)

// Humidity Sensors
"^HIH[0-9].*"                 // HUMIDITY_SENSOR, SENSOR

// Pressure Sensors
"^HSC[A-Z].*"                 // PRESSURE_SENSOR, SENSOR
"^SSC[A-Z].*"                 // PRESSURE_SENSOR, SENSOR
"^ABP[A-Z].*"                 // PRESSURE_SENSOR, SENSOR
"^MPR[A-Z].*"                 // PRESSURE_SENSOR, SENSOR

// Hall Effect Linear Sensors
"^SS49[0-9].*"                // HALL_SENSOR, SENSOR (linear)
"^SS59[0-9].*"                // HALL_SENSOR, SENSOR (linear)

// Hall Effect Switch Sensors
"^SS4[0-8][0-9].*"            // HALL_SENSOR, SENSOR (switch, not SS49x)
"^SS5[0-8][0-9].*"            // HALL_SENSOR, SENSOR (switch, not SS59x)

// Magnetometers
"^HMC[0-9].*"                 // MAGNETOMETER, SENSOR

// Rotary Sensors
"^HRS[0-9].*"                 // SENSOR
"^HPX[0-9].*"                 // SENSOR

// Optical Sensors
"^HOA[0-9].*"                 // SENSOR_OPTICAL, SENSOR
"^HLC[0-9].*"                 // SENSOR_OPTICAL, SENSOR

Series Extraction Rules

Package Code Extraction Rules

The handler uses different extraction logic per product family:

Pressure Sensors (HSC/SSC/ABP/MPR)

// Extract last 2 characters from the main part (before any hyphen)
// HSCDANN001PG2A3 -> A3 -> DIP
String suffix = mainPart.substring(mainPart.length() - 2);
switch (suffix) {
    case "A3" -> "DIP"
    case "A5" -> "SMT"
    case "AA" -> "DIP"
    case "SA" -> "SIP"
    case "MD" -> "SMD"
}

Humidity Sensors (HIH)

// Package code is in the second segment after hyphen
// HIH6130-021-001 -> 021 -> SIP
switch (segment) {
    case "021" -> "SIP"   // SIP non-condensing
    case "022" -> "SMD"   // SMD non-condensing
    case "031" -> "SIP"   // SIP condensing
    case "032" -> "SMD"   // SMD condensing
}

Hall Effect Sensors (SS4xx/SS5xx)

// Package code is the letter before final digit (if present)
// SS495A1 -> A -> TO-92
// SS441A  -> A -> TO-92
switch (pkgChar) {
    case 'A' -> "TO-92"
    case 'E' -> "SOT-89"
    case 'T' -> "SOT-23"
    case 'L' -> "SIP"
}

Magnetometers (HMC)

// Look for trailing L indicating LCC package
// HMC5883L -> L -> LCC
if (basePart.endsWith("L")) return "LCC"

Example MPNs with Explanations

Humidity Sensors

Pressure Sensors

Hall Effect Sensors

Magnetometers

Optical Sensors

Official Replacement Logic

The isOfficialReplacement() method in HoneywellHandler checks:

1. Same series: Parts in the same series are typically compatible (different packages)
2. Pressure range match: For pressure sensors, range must match for compatibility
3. Known compatible pairs:
   • HIH6130 <-> HIH6131 (alarm output variant)
   • HIH8120 <-> HIH8121 (alarm output variant)
   • HIH4000 <-> HIH4010 (covered variant)
   • HMC5883 variants

Handler Implementation Notes

matches() Override

The handler provides explicit matches() implementation for better performance:

@Override
public boolean matches(String mpn, ComponentType type, PatternRegistry patterns) {
    switch (type) {
        case HUMIDITY_SENSOR:
            return upperMpn.matches("^HIH[0-9].*");
        case PRESSURE_SENSOR:
            return upperMpn.matches("^HSC[A-Z].*") ||
                   upperMpn.matches("^SSC[A-Z].*") ||
                   upperMpn.matches("^ABP[A-Z].*") ||
                   upperMpn.matches("^MPR[A-Z].*");
        // ... etc.
    }
}

getSupportedTypes() Pattern

Uses Set.of() (modern, immutable) - compliant with codebase best practices:

@Override
public Set<ComponentType> getSupportedTypes() {
    return Set.of(
        ComponentType.SENSOR,
        ComponentType.HUMIDITY_SENSOR,
        ComponentType.PRESSURE_SENSOR,
        ComponentType.HALL_SENSOR,
        ComponentType.MAGNETOMETER,
        ComponentType.SENSOR_OPTICAL
    );
}

Related Files

• Handler: manufacturers/HoneywellHandler.java
• Component types: SENSOR, HUMIDITY_SENSOR, PRESSURE_SENSOR, HALL_SENSOR, MAGNETOMETER, SENSOR_OPTICAL
• Similarity: SensorSimilarityCalculator (general sensor similarity)

Learnings & Quirks

• SS49x vs SS4xx conflict: The handler uses specific patterns to distinguish linear sensors (SS49x, SS59x) from switch sensors (SS4xx where xx != 9x). Patterns SS4[0-8][0-9] exclude SS49x.
• Pressure sensor range extraction: Range is embedded in the long MPN string at different positions. The handler searches for 3-digit or 4-digit numeric chunks.
• Humidity sensor package in hyphenated segment: Unlike most manufacturers where package is a suffix, HIH sensors encode package info in the second hyphen-separated segment (021, 022, 031, 032).
• HMC5883 vs HMC5883L: Both extract series "HMC5883" but "L" suffix indicates LCC package. They are the same IC in different packages.
• No manufacturer-specific ComponentTypes: Unlike TI or ST handlers, Honeywell uses generic types (HUMIDITY_SENSOR, PRESSURE_SENSOR) without _HONEYWELL suffixes.
• getManufacturerTypes() returns empty set: Honeywell does not define custom ManufacturerComponentType enums.