NodeMCU Config

= Micropython =

Basics
sudo pip install esptool esptool.py --port /dev/ttyUSB0 erase_flash esptool.py --port /dev/ttyUSB0 --baud 460800 write_flash --flash_size=detect 0 ~/Desktop/esp8266-20171101-v1.9.3.bin
 * Installing:

sudo apt install picocom picocom /dev/ttyUSB0 -b115200
 * Connecting via Terminal:

import webrepl_setup
 * Connecting via REPL(web):

If you disabled automatic start-up on boot, you may run configured daemon on demand using: import webrepl webrepl.start

import os os.listdir
 * Checking filesystem:

os.mkdir('dir')
 * Create directories:

os.remove('data.txt')
 * Remove Files:

f = open('data.txt', 'w') f.write('some data') f.close
 * Writing Data to files:

f = open('data.txt') f.read f.close
 * Reading data:

import machine machine.freq               # get the current frequency of the CPU machine.freq(160000000)      # set the CPU frequency to 160 MHz
 * Checking Machine Frequency & Overclocking:

import network; ap = network.WLAN(network.AP_IF); print(ap.config('essid'));
 * Check AP Name:

import network; ap = network.WLAN(network.AP_IF); ap.active(True); ap.config(essid='MyESP8266', authmode=network.AUTH_WPA_WPA2_PSK, password='mypassword'); print(ap.config('essid'));
 * Change AP name and password:

As a final step of boot procedure, main.py is executed from filesystem This file is a hook to start up a user application each time on boot (instead of going to REPL). For small test applications, you may name them directly as main.py but instead it’s recommended to keep your application(s) in separate files, and have just the following in main.py:
 * Boot Process:

import my_app my_app.main

sudo pip install adafruit-ampy ampy --port /dev/ttyUSB0 put ~/Desktop/main.py
 * Upload data using Serial Port

Control a hobby servo
Hobby servo motors can be controlled using PWM. They require a frequency of 50Hz and a duty between about 40 and 115, with 77 being the center value.


 * Manual Movements


 * Random movements:


 * References