ESP32 UNO D1 R32 WIFI Bluetooth Development Board

Power supply voltage:DC 5V - 12V
Working Voltage: 3.3V DC
Input Voltage: 5V - 12V DC
Wifi: 802.11 b/g/n/e/i (802.11n up to 150 Mbps)
Bluetooth: v4.2 BR/EDR and BLE specification
Memory: 520KB
Flash: 32Mb (4M bytes)
Current: 250mA (max)
Current: 0.15mA (sleep)
Current: 20mA (ON but no wifi)
Operating Temperature:0~+70℃