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The Raspberry Pi 4 Model B, equipped with 2 GB RAM, offers a powerful Broadcom BCM2711, quad-core 64-bit ARM-8 Cortex-A72 processor clocked at 1.5 GHz. The device has two microHDMI connectors, two USB 3.0 connectors, two USB 2.0 connectors and a power connector USB-C connector. The board retains the features of its predecessor, including dual-band WiFi (2.4 GHz and 5 GHz), Bluetooth 5 / BLE and a high-speed Ethernet port up to 1000 Mbps with the option to power via PoE. The Raspberry Pi 4 Model B also maintains a standard 40-pin GPIO connector, CSI and DSI connectors and a slot for a microSD card.

The kit from Seeedstudio includes the Seeed Xiao ESP32-S3 module and the OV2640 camera. The Xiao ESP32-S3 has a dual-core Xtensa 32-bit LX7 processor running at do 240 MHz, 8 MB PSRAM and 8 MB Flash memory. The module supports WiFi 2.4 GHz, Bluetooth 5.0 and Bluetooth mesh communication. A memory card slotmicroSD card.

The Raspberry Pi 3 A+ model is an improved version of the popular minicomputer. It features a more powerful Broadcom BCM2837B0, quad-core, 64-bit ARM-8 Cortex-A53 processor clocked at 1.4 GHz. It also offers dual-band WiFi (2.4 GHz and 5 GHz) and Bluetooth 4.2/BLE for added functionality and versatility.

The WT32-ETH01 is a versatile ESP32 module that combines Ethernet, Wi-Fi, and Bluetooth. It offers easy networking and low power consumption, ideal for IoT and industrial applications. Works great with Home Assistant and Tasmota platforms.