# KS5037 Keyestudio ESP32 S3 Cam Sensor Shield

![Img](./media/1.png)

## 1. Introduction

The Keyestudio ESP32 S3 Cam Sensor Shield is an expansion board developed based on the S3 cam. It extends the pins of the S3 cam development board through a 2.54mm pin interface and includes interfaces for IIC, serial port, and a 1.54-inch color screen. The expansion board can be powered by a DC interface to supply a DC voltage of 6-9V. Additionally, a toggle switch is reserved for convenient control of power on/off. In terms of structure, it is equipped with four M4 positioning holes and is compatible with the size of Lego parts.

## 2. Parameters

- Operating Voltage: DC 6~9V

- Operating Current: 60mA (average)

- Maximum Output Current: 5V/2A

- Operating Temperature: -25℃~+65℃

- Dimensions: 80mm * 120mm

## 3. Pin-out

![Img](./media/2.png)

## 4. Wiring
<span style="color: rgb(0, 209, 0);">**For the S3 cam development board usage tutorial, you can refer to：[MB0184](https://docs.keyestudio.com/projects/MB0184/en/latest/docs/MB0184%20ESP32-S3%20CAM%20Development%20Board.html)**</span>

| S3 cam shield | XHT11 |
| :--: | :--: |
| G | GND |
| 3V3 | 3V3 |
| 14 | S |

![Img](./media/3.png)

## 5. Arduino

For downloading the Arduino IDE, please refer to [Arduino IDE](https://docs.keyestudio.com/projects/Arduino/en/latest/Arduino%20IDE%20Tutorial.html) (including the installation of the CH340 driver).

**Download**

* Click to download the [library files](./library/Bonezegei_DHT11.7z)

```
#include <Bonezegei_DHT11.h>

Bonezegei_DHT11 dht(14);

void setup() {
  Serial.begin(115200);
  dht.begin();
}

void loop() {

  if (dht.getData()) {                         // get All data from DHT11
    float tempDeg = dht.getTemperature();      // return temperature in celsius
    float tempFar = dht.getTemperature(true);  // return temperature in fahrenheit if true celsius of false
    int hum = dht.getHumidity();               // return humidity
    String str  = "Temperature: ";
           str += tempDeg;
           str += "°C  ";
           str += tempFar;
           str += "°F  Humidity:";
           str += hum;
    Serial.println(str.c_str());
    //Serial.printf("Temperature: %0.1lf°C  %0.1lf°F Humidity:%d \n", tempDeg, tempFar, hum);
  }
  delay(2000);  //delay atleast 2 seconds for DHT11 to read tha data
}

```
**Test Results**

![Img](./media/4.png)

## 6. The Don'ts

1. Do not directly connect high-power modules or motors to the IO expansion ports.
1. Do not connect voltages higher than DC 9V to the External Power Port.