1PCS ESP32 Development Board WiFi Bluetooth Ultra-Low Power Consumption Dual Core ESP-32S ESP32-WROOM-32D ESP32-WROOM-32U ESP 32 Description: ESP32-WROOM-32 is a general-purpose Wi-Fi BT BLE MCU module with powerful functions and a wide range of uses. It can be used for low-power sensor networks and demanding tasks, such as voice coding, audio streaming, and MP3 Decoding etc. The core of this module is the ESP32-D0WDQ6 chip*, which is scalable and adaptive. The two CPU cores can be controlled separately. clock The frequency adjustment range is from 80 MHz to 240 MHz. The user can cut off the power of the CPU and use the low-power co-processor to continuously monitor the peripherals The status change or whether some analog quantity exceeds the threshold. ESP32 also integrates a wealth of peripherals, including capacitive touch sensors, Hall sensors, Low noise sensor amplifier, SD card interface, Ethernet interface, high-speed SDIO/SPI, UART, I2S and I2C, etc. The module integrates traditional Bluetooth, low-power Bluetooth and Wi-Fi, and has a wide range of uses: Wi-Fi supports a wide range of communication connections, and also supports The router is directly connected to the Internet; while Bluetooth allows users to connect to mobile phones or broadcast BLE Beacon to facilitate signal detection. Sleep of the ESP32 chip The current is less than 5 µA, making it suitable for battery-powered wearable electronic devices. The data transmission rate supported by the module is up to 150 Mbps, antenna output The power reaches 20 dBm, which can achieve the widest range of wireless communication. Therefore, this module has industry-leading technical specifications, Excellent performance in terms of transmission distance, power consumption, and network connectivity. The operating system of ESP32 is freeRTOS with LwIP, and TLS 1.2 with hardware acceleration is built-in. The chip also supports OTA encryption Upgrade, it is convenient for users to continue to upgrade after the product is released. Specifications: Test reliability: HTOL/HTSL/uHAST/TCT/ESD Wi-Fi protocol: 802.11 b/g/n (802.11n, speed up to 150 Mbps) A-MPDU and A-MSDU aggregation, support 0.4 µs guard interval Frequency range 2.4 GHz ~ 2.5 GHz Bluetooth protocol: Compliant with Bluetooth v4.2 BR/EDR and BLE standards Bluetooth radio: NZIF receiver with -97 dBm sensitivity, Class-1, Class-2 and Class-3 transmitters, AFH Bluetooth audio: CVSD and SBC audio Module interface: SD card, UART, SPI, SDIO, I2C, LED PWM, motor PWM, I2S, IR, pulse counter, GPIO, capacitive touch sensor, ADC, DAC, two-wire automotive interface (TWAI®, compatible with ISO11898- 1) On-chip sensor: Hall sensor Integrated SPI flash: 4 MB Working voltage/supply voltage: 3.0 V ~ 3.6 V