NodeMCU Projects: Difference between revisions
→Micropython
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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
*Connecting via Terminal:
Line 17 ⟶ 16:
import webrepl_setup
If you disabled automatic start-up on boot, you may run configured daemon on demand using:
import webrepl
webrepl.start()
*Playing with GPIO:
<syntaxhighlight lang="python">
import machine
pin = machine.Pin(2, machine.Pin.OUT)
pin.on()
pin.off()
def toggle(p):
Line 39 ⟶ 36:
toggle(pin)
time.sleep_ms(500)
</syntaxhighlight>
<syntaxhighlight lang="python">
* Checking filesystem:▼
import machine
import time
pin = machine.Pin(2, machine.Pin.OUT)
def toggle(p):
p.value(not p.value())
while True:
for i in range(100,999):
time.sleep_ms(i)
toggle(pin)
</syntaxhighlight>
import os
os.listdir()
*Create directories:
os.mkdir('dir')
*Remove entries:
os.remove('data.txt')
* Checking Machine Frequency & Overclocking:
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machine.freq() # get the current frequency of the CPU
machine.freq(160000000) # set the CPU frequency to 160 MHz
*Check AP Name:
import network;
ap = network.WLAN(network.AP_IF);
print(ap.config('essid'));
*Change AP name and password:
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'));
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