fix cyd_35r backlight/GT911 for ESP32-3248S035C (BL=27).
Wrong TFT_BL=21 caused black screens; INT is separate from backlight. Rebuild, flash COM3, and ship firmware/cyd_35r package. Co-authored-by: Cursor <cursoragent@cursor.com>
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21
README.md
21
README.md
@@ -4,9 +4,16 @@ GPIO22 读人体红外(PIR)模块 OUT:每次检测到运动开始,屏幕
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## 硬件
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| 项目 | 2.8"(默认) | 3.5" C |
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|------|-------------|--------|
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| 板子 | ESP32-2432S028R | ESP32-3248S035C |
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| 屏 / 触控 | ILI9341 + XPT2046 SoftSPI | ST7796 + GT911 I2C |
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| 背光 | GPIO21 | GPIO27 |
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| PIR OUT | **GPIO22**(两板相同) | **GPIO22** |
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| PlatformIO | `cyd` | `cyd_35r` |
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| 项目 | 说明 |
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|------|------|
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| 板子 | CYD ESP32-2432S028R |
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| 模块 | 三脚小型人体红外(卖家常写 mini SR501,实际多为 **HC-SR505**) |
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| 供电 | **3.3V**(本工程已实测可用) |
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| 输出 | **GPIO22** |
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@@ -32,7 +39,7 @@ GPIO22 读人体红外(PIR)模块 OUT:每次检测到运动开始,屏幕
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注意:
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- 上电后约 **30~60 秒** 预热,此前可能无反应或乱跳
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- OUT 接 **GPIO22**(勿接 21 背光),必须共地
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- OUT 接 **GPIO22**(2.8 勿接 21 背光;3.5 勿接 27 背光),必须共地
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- 小模块一般无灵敏度旋钮;检测距离大约 3m 量级
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## 操作
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@@ -43,14 +50,23 @@ GPIO22 读人体红外(PIR)模块 OUT:每次检测到运动开始,屏幕
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## 构建 / 烧录
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```bash
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# 2.8"
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pio run -e cyd -t upload
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# 3.5" C
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pio run -e cyd_35r -t upload
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```
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预编译包:
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```powershell
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# 2.8"
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cd firmware\cyd
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.\flash.ps1
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# 3.5"
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cd firmware\cyd_35r
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.\flash.ps1
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# 或 .\flash.ps1 -Port COMx
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```
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@@ -58,4 +74,5 @@ cd firmware\cyd
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```powershell
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.\firmware\export_from_build.ps1
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.\firmware\export_from_build.ps1 -Env cyd_35r
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```
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