ESP32 ESP WROOM Chip

ESP32 ESP WROOM Chip –WROOM-32 can be used as a stand-alone application or as a slave to a host MCU. As a slave device, ESP32-WROOM-32 provides WIFI and Bluetooth functions through SPI/SDIO or I2C/UART interface.

2.1 WiFi.1WiFi

•802.11 b/g/n/e/i

• 802.11 n (2.4 GHz), speeds up to 150 Mbps

•802.11 e: QoS mechanism realizes wireless multimedia technology

•WMM-PS, UAPSD

•Beacon automatic monitoring/scanning

ESP32 ESP WROOM Chip Features

• 802.11i security features: pre-authentication and TSN

•Support WPA / WPA2 / WPA2-Enterprise /WPS encryption

• Infrastructure network (Infrastructure BSS ) Station mode/SoftAP mode

• Wi-Fi Direct (P2P ), P2P Discovery, P2P GO Mode and P2P Power Management

2.2 Bluetooth 2 Bluetooth

• Bluetooth v4.2 complete standard, including traditional Bluetooth ( BR/EDR ) and Bluetooth Low Energy ( BLE )
• Supports standards Class-1 , Class-2 and Class-3 , and does not require an external power amplifier
• Enhanced precise power control
• Output power up to + 10dBm
•NZIF receiver with BLE receiving sensitivity of -98dBm • Adaptive Frequency Hopping ( AFH ) • Standard HCI based on SDIO / SPI / UART interface • High-speed UARTHCI with speed up to 4Mbps • Support BT4.2controller and host protocol stack •

About

Service Discovery Protocol ( SDP )
• Generic Access Application ( GAP )
• Security Management Protocol ( SMP )
2.3 CPU and storage

• Xtensa® 32-bit LX6 dual-core processor with a computing capability up to 600 DMIPS

• QSPI can connect up to 4 Flash / SRAM , each Flash Max is 16 MBytes

2.4 Clocks and Timers

•  8 MHz oscillator, supports self-calibration

•  RC oscillator, support self-calibration

•  external 2 MHz to 40 MHz crystal oscillator

• 2 timer groups, each group includes 2 64 -bit general-purpose timers and 1 main system watchdog

2.5 Peripheral Interface

• 12-bit SAR ADC, up to 18 channels
• 2 8 -bit D/A converters
• 10 touch sensors
• temperature sensor en.wikipedia.org
• 4 SPI
• 2 I2S
• 2 I2C
• 3 UART
• 1 Host SD / eMMC / SDIO
• 1 Slave SDIO / SPI
• Ethernet MAC interface with dedicated DMA , support IEEE 1588 • CAN 2.0 • IR ( TX / RX ) • Motor PWM