reference: 早先那版 C 写的装甲板固件(ESP-IDF 工程)
`armor/` 是它的 Rust 改写版,这一份留着当参考:ADC 阈值的 2000 就是从它标定出来的 (`.env.example` 里那句 "same as the reference firmware" 指的就是它),而且它的 README 记着实测设备与 MAC,换硬件时是有用的现场记录。 只收了 20 个源文件。它自带的 `.gitignore` 已经排掉 `build/`(211 MB 的 ESP-IDF 构建产物) 与生成的 `sdkconfig`,所以仓库里不会多出这些东西。 两处顺带处理: - `reference/armor/.git` 是一个**空的**仓库壳(`git init` 过,零提交、零 remote、零 ref), 而外层 git 正因为它的存在而拒绝索引 `reference/` 下的任何文件 (`error: 'reference/armor/' does not have a commit checked out`)。它被挪到 `desktop/.dev/backup/reference-armor-git`(可逆,且该目录已被忽略),不是删除。 - 它的 README 指着 `../armor-platformio-backup/`,那份备份并不存在。改成明说"没有进仓库", 免得以后有人照着找一个不存在的目录。 另外把 `/docs/` 加进 .gitignore:那是工作区里另起的一个 Astro 文档站,与本仓库无关。
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#pragma once
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#include <cstdint>
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/**
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* @brief Piezo hit detection + WS2812 status LEDs.
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*
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* Ported from the Arduino version:
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* * the legacy ADC DMA driver (`driver/adc.h`, removed in ESP-IDF v6) is
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* replaced by the `adc_continuous` driver with the same 40 kHz aggregate
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* sampling rate, 0 dB attenuation and 12-bit results;
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* * Adafruit_NeoPixel (bit-banged) is replaced by an RMT WS2812 encoder.
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*/
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class Hit {
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public:
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// Same values as Adafruit_NeoPixel::Color(r, g, b) -> 0x00RRGGBB.
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static constexpr uint32_t RED = 0xFF0000;
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static constexpr uint32_t BLUE = 0x0000FF;
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static constexpr uint32_t GREEN = 0x00FF00;
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static constexpr uint32_t YELLOW = 0xFFFF00;
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/** Blink duration after a hit, and the cooldown that suppresses repeats. */
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static constexpr uint32_t HIT_BLINK_MS = 50;
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/** Raw 12-bit ADC level above which a sample counts as a hit. */
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static constexpr uint32_t HIT_THRESHOLD = 2000;
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static volatile uint32_t color;
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static volatile bool detect_hit;
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static volatile uint32_t hit_cnt;
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static volatile uint32_t last_hit_ms;
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static void begin();
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static void onLoop();
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};
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