Aazon.co: ACEIRC 4pcs ESP32 H2 DevKit 1 N4 ESP32 H2 Core Board IoT... Additionally, it includes two SMD LED indicators, a reset button, a BOOT button, and a USB to TTL download debug port. WiFi Bluetooth Development Board AOICRIE 4pcs ESP32 ESP32-C3 Development Board ESP32 C3 Supermini WiFi Bluetooth USB-C ESP32 Board ★It has a small form factor and stamp hole design, making it convenient for developers to use. The board supports multiple interfaces, including UART, GPIO, SPI, I2C, ADC, and PWM, and is ideal for mobile devices, wearable electronics, and IoT applications with low-power performance. By default, GPIO11 serves as the VDD pin of the SPI flash, and thus requires configuration before it can be utilized as a GPIO. 【Note】: The external SPI Flash is powered by the 3., 3V supply, eliminating the need for additional power supply, and can be accessed using the standard 2-wire SPI communication method. There is a 5-channel 12-bit ADC on this board, with a maximum sampling rate of 100KSPS. Specifications: Size: 0., 83 inches* 2., 01 inches Weight: 0., 71 Oz ROM: 384KB FLASH: 4MB WIFI: IEE 802., 11bgn Bluetooth: BLE 5., 0 & mesh Chip: ESP32-WROOM-32 Connection: USB Type C Antenna: PCB On-board About Interface: This development board has one SPI flash with 4MB storage capacity, which can be expanded up to 16MB. Notes: To avoid the ESP32 from entering download mode, the BOOT (IO09) pin should not be pulled down before powering up. There are 15 external GPIO pins that can be multiplexed. ESP32 Development Board, CH340C, 30P, USB-C, WiFi Since the VDD of the external SPI flash is already connected to the 3., 3V power supply system, there is no requirement for additional power supply configuration, and it can be accessed using the standard 2-wire SPI communication mode. 【External 4MB SPI FLASH】: The external SPI FLASH of the development board extends the storage capacity of the embedded system and improves the reliability and stability of the system. When using self-compiled software, flash must be configured to DIO mode accordingly. 4pcs ESP32 C3 Microcontrollers ESP32-C3 ESP32 USB C Development Boards Up to 160MHz Clock Speed, 4MB Flash, 384KB ROM Support WiFi, Bluetooth, BLE Compatible with Arduino IDE (Pre-soldered pins A low-speed SPI interface is also included in master mode.
