Board NodeMCU berbasis ESP8266 merupakan salah satu board paling populer untuk perangkat IoT berbasis arduino. Karena harganya yang relatif murah dan mudah digunakan.
NodeMCU adalah development board yang menggunakan mikrokontroller ESP-12 yang merupakan keluarga modul ESP8266 Wifi Module. Dengan perangkat ini, kamu sudah bisa membuat berbagai macam projek Iot atau Internet of things dengan berbagai macam sensor dan juga aktuator.
Spesifikasi : - Uses CH340G instead of CP2102. - NodeMCU has built-in USB-TTL serial with super reliable industrial strength CH340G for superior stability on all supported platforms. - Communication interface voltage: 3.3V. - Antenna type: Built-in PCB antenna is available. - Wireless 802.11 b/g/n standard - WiFi at 2.4GHz, support WPA / WPA2 security mode - Support STA/AP/STA + AP three operating modes - Built-in TCP/IP protocol stack to support multiple TCP Client connections (5 MAX) - D0 ~ D8, SD1 ~ SD3: used as GPIO, PWM, IIC, etc., port driver capability 15mA - AD0: 1 channel ADC - Power input: 4.5V ~ 9V (10VMAX), USB-powered - Current: continuous transmission: 70mA (200mA MAX), Standby: 200uA - Transfer rate: 110-460800bps - Support UART / GPIO data communication interface - Remote firmware upgrade (OTA) - Support Smart Link Smart Networking - Working temperature: -40 ~ + 125 - Drive Type: Dual high-power H-bridge driver - Flash size: 4MByte