leviathan
43 lines
1.2 KiB
Markdown
43 lines
1.2 KiB
Markdown
# Suzuki Protocol
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**Rust module:** `src/protocols/suzuki.rs`
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**Reference:** `REFERENCES/ProtoPirate/protocols/suzuki.c`
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## Overview
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Suzuki uses PWM: 250 µs HIGH = 0, 500 µs HIGH = 1; LOW 250 µs after each bit. 64 bits total. Preamble: 350 short HIGH / short LOW pairs; 2000 µs gap at end. Field layout: serial = (data_high&0xFFF)<<16 | data_low>>16; btn = (data_low>>12)&0xF; cnt = (data_high<<4)>>16.
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## Timing
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| Parameter | Value | Notes |
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|------------|---------|---------|
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| Short (0) | 250 µs | ±99 µs |
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| Long (1) | 500 µs | ±99 µs |
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| Preamble | 350 pairs | |
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| Gap | 2000 µs | ±399 µs |
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| Min bits | 64 | |
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## Encoding
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PWM: 250 µs HIGH = 0, 500 µs HIGH = 1; LOW 250 µs after each bit.
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## Frame Layout (64 bits)
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- serial: (data_high & 0xFFF) << 16 | data_low >> 16
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- button: (data_low >> 12) & 0xF
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- counter: (data_high << 4) >> 16
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## Decoder Steps
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1. **Reset** — Wait for short pulse (preamble).
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2. **CountPreamble** — Count 350 short pairs; on 2000 µs gap → DecodeData.
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3. **DecodeData** — Short = 0, long = 1; at 64 bits parse fields and return.
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## Encoder
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Supported; 350 preamble pairs, gap, 64 PWM bits.
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## Frequencies
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433.92 MHz.
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