树莓派3model引脚图

树莓派3 Model B的引脚图如下图所示：

     3V3  (1) (2)  5V
 GPIO2  (3) (4)  5V
 GPIO3  (5) (6)  GND
 GPIO4  (7) (8)  GPIO14
   GND  (9) (10) GPIO15
GPIO17 (11) (12) GPIO18
GPIO27 (13) (14) GND
GPIO22 (15) (16) GPIO23
   3V3 (17) (18) GPIO24
GPIO10 (19) (20) GND
 GPIO9 (21) (22) GPIO25
GPIO11 (23) (24) GPIO8
   GND (25) (26) GPIO7
 GPIO0 (27) (28) GPIO1
 GPIO5 (29) (30) GND
 GPIO6 (31) (32) GPIO12
G

相关问题

树莓派蜂鸣器连接图

树莓派蜂鸣器连接图如下：

        +-----+-----+---------+------+---+ Model B+ ---+------+---------+-----+-----+
        | BCM | wPi |   Name  | Mode | V | Physical | V | Mode | Name    | wPi | BCM |
        +-----+-----+---------+------+---+----++----+---+------+---------+-----+-----+
        |     |     |    3.3v |      |   |  1 || 2  |   |      | 5v      |     |     |
        |   2 |   8 |   SDA.1 |   IN | 1 |  3 || 4  |   |      | 5V      |     |     |
        |     |     |    GND  |      |   |  5 || 6  |   |      | 0v      |     |     |
        |   3 |   9 |   SCL.1 |  OUT | 1 |  7 || 8  | 1 | OUT  | TxD     |     |     |
        |     |     |    GND  |      |   |  9 || 10 | 1 | OUT  | RxD     |     |     |
        |   4 |   7 | GPIO. 7 |  OUT | 1 | 11 || 12 | 1 | OUT  | GPIO. 1 | 1   | 17  |
        |     |     |    GND  |      |   | 13 || 14 |   |      | 0v      |     |     |
        |   5 |  21 | GPIO.21 |  OUT | 0 | 15 || 16 | 1 | OUT  | GPIO.22 | 22  | 6   |
        |   6 |  22 | GPIO.22 |  OUT | 0 | 17 || 18 |   |      | 3.3v    |     |     |
        |   7 |  11 | GPIO.11 |  OUT | 0 | 19 || 20 |   |      | GPIO.27 | 27  | 13  |
        |     |     |    GND  |      |   | 21 || 22 |   |      | GPIO.28 | 28  | 19  |
        |   8 |  10 | GPIO.10 |  OUT | 0 | 23 || 24 | 1 | OUT  | GPIO.23 | 23  | 11  |
        |     |     |    GND  |      |   | 25 || 26 | 1 | OUT  | GPIO.24 | 24  | 9   |
        |   9 |  13 | GPIO.13 |  OUT | 0 | 27 || 28 |   |      | GPIO.29 | 29  | 5   |
        |  10 |  12 | GPIO.12 |  OUT | 0 | 29 || 30 |   |      | 0v      |     |     |
        |  11 |  14 | GPIO.14 |  OUT | 0 | 31 || 32 |   |      | GPIO.26 | 26  | 15  |
        |  12 |  15 | GPIO.15 |  OUT | 0 | 33 || 34 |   |      | 0v      |     |     |
        |  13 |  28 | GPIO.28 |   IN | 0 | 35 || 36 |   |      | GPIO.27 | 27  | 13  |
        |  14 |  29 | GPIO.29 |   IN | 0 | 37 || 38 |   |      | GPIO.28 | 28  | 19  |
        |     |     |    GND  |      |   | 39 || 40 |   |      | GPIO.30 | 30  | 16  |
        +-----+-----+---------+------+---+----++----+---+------+---------+-----+-----+
        | BCM | wPi |   Name  | Mode | V | Physical | V | Mode | Name    | wPi | BCM |
        +-----+-----+---------+------+---+ Model B+ ---+------+---------+-----+-----+

假设我们将蜂鸣器连接到树莓派的 GPIO4 引脚上，连接方式如下：

- 将蜂鸣器的一个引脚连接到树莓派的 GPIO4 引脚上；
- 将蜂鸣器的另一个引脚连接到树莓派的 GND 引脚上。

接线图示意图如下：

+--------------------------+
|                          |
|         Raspberry Pi     |
|                          |
| +-----+                  |
| |     |                  |
| |     |                  |
| |     |                  |
| |     |                  |
| |     |                  |
| +-----+                  |
| |     |                  |
| |     |                  |
| |     |                  |
| |     |                  |
| |     |                  |
| +-----+                  |
|  3V3  |                  |
|  GND  |                  |
|  GPIO4|----[Buzzer]------|
|  ...  |                  |
|       |                  |
+--------------------------+

注意：连接蜂鸣器时，需要注意蜂鸣器的极性，如果不正确，可能会导致蜂鸣器发不出声音。

树莓派3b配置yolov5

根据提供的引用内容，树莓派3B配置YOLOv5的步骤如下：
1. 首先，确保你的树莓派已经安装好操作系统，并且系统版本为raspios-bullseye-arm64.img。
2. 进入终端，更新系统软件包列表，使用以下命令：

   sudo apt update

3. 安装Python3和pip，使用以下命令：

   sudo apt install python3 python3-pip

4. 安装依赖库和工具，使用以下命令：

   sudo apt install libffi-dev libssl-dev libjpeg-dev zlib1g-dev libopenblas-dev libatlas-base-dev libhdf5-dev libhdf5-serial-dev libqtgui4 libqtwebkit4 libqt4-test python3-pyqt5 python3-dev cmake

5. 使用pip安装YOLOv5，使用以下命令：

   pip3 install yolov5

6. 下载YOLOv5的预训练权重，使用以下命令：

   wget https://github.com/ultralytics/yolov5/releases/download/v5.0/yolov5s.pt

7. 配置YOLOv5，使用以下命令：

   echo "MODEL_PATH='yolov5s.pt'" >> ~/.bashrc
   source ~/.bashrc

现在你的树莓派3B已经成功配置了YOLOv5。你可以使用这个模型进行目标检测。