ESP 8266 with NodeMCU
ESP 8266 with NodeMCU What is a NodeMCU NodeMCU is an open-source development board designed specifically for the Internet of Things (IoT). Key features of the NodeMCU Integrated Wi-Fi chip ((802.11 b/g/n) operating at 2.4GHz SOC: Powered by a 32-bit Tensilica Xtensa LX106 CPU, usually clocked at 80 MHz (which can be overclocked to 160 MHz). For comparison, a standard Arduino Uno runs at just 16 MHz. Also comes with a flash memory of a 4 MB of storage. Power: MicroUSB port (for data and power) + VIN pin (4.5V to 9V). IO GPIO Pins: It features 17 General Purpose Input/Output pins, though some are reserved for internal flash communication. Peripheral Support: It natively supports standard communication protocols like I2C (for displays and advanced sensors), SPI (for SD cards or RFID readers), and UART (for hardware serial communication). PWM Support: Pulse Width Modulation is available on the digital pins, allowing users to dim LEDs or control servo motors. ADC (Analog-to-Digital Converter): It features one analog input pin (A0), which is perfect for reading analog components like potentiometers, light-dependent resistors (LDRs), or soil moisture sensors. ...