ESP8266 Community Forum

- Sat Oct 07, 2017 11:15 pm #70703 Hello! I want to control 3 stepper motors and read 1 or 2 analog inputs. I'm very new to ESP8266 so I don't know that whether ESP8266 can be used to send data from Arduino/STM boards to a web server in real-time or not (I don't want to refresh the web-page).

If yes, could you show me the ways so I can start digging in these keywords?

I am currently having one Arduino Mega 2560, one STM32F407 Discovery, one NodeMCU module. I can turn on LEDs with NodeMCU but it is too weak for further mechatronic controlling. Do I need to buy an ESP8266 module, or NodeMCU is enough for me to do my task?

Thank you very much!

- Tue Oct 10, 2017 4:17 am #70764 You could use a nodeMCU or any ESP12 board then add via I2C more PWM, GPIO, and analog inputs. Search for PCA9685, MCP23017, and MCP3008 boards.

- Tue Oct 10, 2017 8:17 am #70769 To clear up any possible misconceptions: a NodeMCU is just an ESP8266 with power supply circuitry and USB -> serial convertor on-board.

Assumption is the mother of all f*ckups. At least: that's what I'm assuming.