Nodemcu - introduction

Nodemcu - introduction

• 1.
  NodeMCU ESP8266 dev board
• 2.
  ESP8266
• 3.
  ESP8266 • 32-bit RISCCPU: Tensilica Xtensa LX106 running at 80 MHz • 64 KiB of instruction RAM, 96 KiB of data RAM • External QSPI flash - 512 KiB to 4 MiB • IEEE 802.11 b/g/n Wi-Fi • WEP or WPA/WPA2 authentication, or open networks • 16 GPIO pins • SPI, I²C, • I²S interfaces with DMA (sharing pins with GPIO) • UART on dedicated pins, plus a transmit-only UART can be enabled on GPIO2 • 1x10-bit ADC • 3xPWM
• 4.
  NodeMCU • Official NodeMCUfirmware – LUA • Micropython – Python 3 • Espruino - Javascript • Arduino • Official ESP 8266 SDK • Adafruit etc.
• 5.
  Pros • Price $3- $8 • Functionality • Community • Event loop • Stability/memory • Number of GPIO • Event loop • 3.3V Cons
• 6.
  Docs - http://www.nodemcu.com/docs/
• 7.
  Tools • Binary firmware •http://frightanic.com/nodemcu-custom-build/ • NodeMCU Flasher • https://github.com/nodemcu/nodemcu-flasher • IDE – ESPlorer • https://github.com/4refr0nt/ESPlorer
• 8.
  NodeMCU – customfirmware
• 9.
  Flash • Flash button