ESP32 main models are:
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1. ESP32-S2: ESP32-S2 is a single-chip system, using XTensa? Dual-Core 32-bit LX7 processor with up to 240 MHz processing speed, Wi-Fi 802.11b\/g\/n\/e\/i support, Bluetooth BR\/EDR\/BLE\/LE2M\/LE2MP support.
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2. ESP32-S3: ESP32-S3 is a dual-core 32-bit MCU supporting Wi-Fi 802.11b\/g\/n, using Xtensa? Dual-Core 32-bit LX7 processor with up to 80 MHz processing speed and Bluetooth BR\/EDR\/BLE\/LE2M\/LE2MP support.
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3. ESP32-C3: ESP32-C3 is a dual-core 32-bit MCU that supports Wi-Fi 802.11b\/g\/n and uses Xtensa? Dual-Core 32-bit LX7 processor with up to 240 MHz processing speed and Bluetooth BR\/EDR\/BLE\/LE2M\/LE2MP support.
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4. ESP32-S4: ESP32-S4 is a Wi-Fi 802.11b\/g\/n dual-core 32-bit MCU, using Xtensa? Dual-Core 32-bit LX6 processor with up to 240 MHz processing speed and Bluetooth BR\/EDR\/BLE\/LE2M\/LE2MP support.
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5. ESP32-WROVER: ESP32-WROVER is a dual-core 32-bit MCU supporting Wi-Fi 802.11b\/g\/n, using Xtensa? Dual-Core 32-bit LX6 processor with up to 240 MHz processing speed and Bluetooth BR\/EDR\/BLE\/LE2M\/LE2MP support.
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The main differences between the ESP32 models are: processor type, maximum operating frequency, and supported Bluetooth protocol.
ESP32 is available in several categories. First, ESP32 is an embedded Wi-Fi& AMP. Bluetooth chip, developed by Le Xin Company.
ESP32 categories include standard type, Wrover type, PICO type, etc.
Of these, the standard model is the most common, it has 4MB of internal Flash memory, and comes with 4MB of PSRAM. Wrover is more powerful, with 8MB of PSRAM, 4MB of Flash storage, and 8MB of external SPI Flash.
In addition, the PICO is a compact design that integrates the ESP32 chip and some necessary peripheral offsets, making it smaller and suitable for space-constrained projects.
In general, there are several types of ESP32, users can choose the right model according to their needs and project requirements.