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ESP32-S3-EYE

The ESP32-S3-EYE is a small-sized AI development board produced by Espressif. It is based on the ESP32-S3 SoC and ESP-WHO, Espressif’s AI development framework. It features a 2-Megapixel camera, an LCD display, and a microphone, which are used for image recognition and audio processing. ESP32-S3-EYE offers plenty of storage, with an 8 MB Octal PSRAM and a 8 MB flash. It also supports image transmission via Wi-Fi and debugging through a Micro-USB port. With ESP-WHO, you can develop a variety of AIoT applications, such as smart doorbell, surveillance systems, facial recognition time clock, etc.

The ESP32-S3-EYE board consists of two parts: the main board (ESP32-S3-EYE-MB) that integrates the ESP32-S3-WROOM-1 module, camera, SD card slot, digital microphone, USB port, and function buttons; and the sub board (ESP32-S3-EYE-SUB) that contains an LCD display. The main board and sub board are connected through pin headers.

Camera	The camera OV2640 with 2 million pixels has a 66.5° field of view and a maximum resolution of 1600x1200. You can change the resolution when developing applications.
Module Power LED	The LED (green) turns on when USB power is connected to the board. If it is not turned on, it indicates either the USB power is not supplied, or the 5 V to 3.3 V LDO is broken. Software can configure GPIO3 to set different LED statuses (turned on/off, flashing) for different statuses of the board. Note that GPIO3 must be set up in open-drain mode. Pulling GPIO3 up may burn the LED.
Pin Headers	Connect the female headers on the sub board.
5 V to 3.3 V LDO	Power regulator that converts a 5 V supply into a 3.3 V output for the module.
Digital Microphone	The digital I2S MEMS microphone features 61 dB SNR and –26 dBFS sensitivity, working at 3.3 V.
FPC Connector	Connects the main board and the sub board.
Function Button	There are six function buttons on the board. Users can configure any functions as needed except for the RST button.
ESP32-S3-WROOM-1	The ESP32-S3-WROOM-1 module embeds the ESP32-S3R8 chip variant that provides Wi-Fi and Bluetooth 5 (LE) connectivity, as well as dedicated vector instructions for accelerating neural network computing and signal processing. On top of the integrated 8 MB Octal SPI PSRAM offered by the SoC, the module also comes with 8 MB flash, allowing for fast data access. ESP32-S3-WROOM-1U module is also supported.
MicroSD Card Slot	Used for inserting a MicroSD card to expand memory capacity.
3.3 V to 1.5 V LDO	Power regulator that converts a 3.3 V supply into a 1.5 V output for the camera.
3.3 V to 2.8 V LDO	Power regulator that converts a 3.3 V supply into a 2.8 V output for the camera.
USB Port	A Micro-USB port used for 5 V power supply to the board, as well as for communication with the chip via GPIO19 and GPIO20.
Battery Soldering Points	Used for soldering a battery socket to connect an external Li-ion battery that can serve as an alternative power supply to the board. If you use an external battery, make sure it has built-in protection circuit and fuse. The recommended specifications of the battery: capacity > 1000 mAh, output voltage 3.7 V, input voltage 4.2 V – 5 V.
Battery Charger Chip	1 A linear Li-ion battery charger (ME4054BM5G-N) in ThinSOT package. The power source for charging is the USB Port.
Battery Red LED	When the USB power is connected to the board and a battery is not connected, the red LED blinks. If a battery is connected and being charged, the red LED turns on. When the battery is fully charged, it turns off.
Accelerometer	Three-axis accelerometer (QMA7981) for screen rotation, etc.