The BPI:UNO32 (also referred to as BPI-UNO32, stylised as BPI UNO32) is an ESP32 with Xtensa 32bit LX6 single/dual-core processor based embedded system. support Webduino ,arduino,microPython,Scratch.x function.

BPI-UNO32 uses the ESP-WROOM-32 of espressif company as MCU. ESP32 is a single-chip solution integrating 2.4GHz Wi-Fi and Bluetooth dual mode. The 40 nanometer technology of TSMC has the best power consumption, RF performance, stability, versatility and reliability. It can deal with various application scenarios.

Two separate controlled CPU cores, the main frequency can be up to 240MHz, 448KB ROM, 520KB SRAM.

BPI-UNO32 The appearance size is fully matched with Arduino UNO R3

Hardware inerface:

Hardware spec:

BPI-UNO32 Hardware spec
CPU	Xtensa® 32-bitLX6single / dual core processor
ROM	448KB
SRAM	520KB
Flash	4MB（Onboard），A maximum of 4 Flash/SRAM, each Flash maximum 16MB
Power	5V@1AmicroUSBpoweror 5.5mm 12VDCport
GPIO	12-bits SAR ADC 18 channel, 2*8-bit D/A converter, 4*SPI, 2*I2S, 2*I2C, 3*UART, Host SD/eMMC/SDIO, Slave SDIO/SPI
Wi-Fi	802.11 b/g/n/e/i 802.11 n(2.4GHz 150Mbps) 802.11 e(Quality of Service)
Bluetooth	BT4.2 & BLE
Buzzer	Passive buzzer
LEDs	RGB LED/POWER LED/Receive LED/Transmit LED
Sizes	68mm*53mm

Online Wiki documents: https://wiki.banana-pi.org/BPI-UNO32