Maximum Frequency an ESP8266 can yield

By ctherouxNo Comments

An ESP8266 running NodeMCU can yield maximum frequency of 1.44 kHz with a duty cycle of 61%.  The wave form is given below.  The code used to perform this test is:

pin = 8
gpio.mode(pin, gpio.OUTPUT);
while true do
 gpio.write(pin, gpio.LOW)
 gpio.write(pin, gpio.HIGH)

Without clearing the watch dog (tmr.wdclr), the device can yield a frequency of 1.84 kHz.  Without clearing the watch dog, the device reboots after a few seconds.

ESP8266 Wave Form

Click on the picture to enlarge it.

ESP8266, Internet of Things, IoT, NodeMCU

Leave your Comment

Your email address will not be published. Required fields are marked *

Time limit is exhausted. Please reload the CAPTCHA.

Blue Taste Theme created by Jabox