Example: Address 5 = switches 1 and 3 ON (binary 0101). ⚠️ Step 3: Sensor Wiring (Analog Inputs) For a 4–20 mA loop-powered sensor:

Byte 0: 0xAA (sync) Byte 1: Address (0x01–0x0F) Byte 2: Status (battery low, tamper) Byte 3–4: Analog channel 1 (12-bit, big-endian) Byte 5–6: Analog channel 2 Byte 7: CRC-8 Decoding example (Python):

| Switch | Function (Typical) | |--------|--------------------| | 1–4 | Unit address (binary, 1–15) | | 5–7 | RF channel (frequency) | | 8 | Enable/disable repeater mode |