iranneto / electrical-measurements

Códigos referentes ao sistema de medição de corrente elétrica (Project SaIoT)

Autor: Iran Macedo Bezerra Neto (IranNeto)

libraries

#include <Time.h>
#include <TimeLib.h>
#include <Ticker.h>

Are required to the interruption and to work with time formats

See oficial documentation (https://github.com/esp8266/Arduino).

All the libraries' functions are in the libraries/library_you_are_searching/library.properties. See allow field.

How the code works ?

void setup()

It will set the interruption and do the webSocket connection.

void loop()

It works as a sampling routine

• Take the sampling time
• Get the sensor's value, square it and accumule
• Count the number of samples
• Calcule the load power and send to post it.

sensorValueI = map(sensorValueI, 1, 722, 1, 512);
sensorValueI -= 511;

The current sensor will output a range voltage from 0 to 5 V but the ESP's analogic pin only takes until 3.3 V so it's necessary to map those ranges

(when there's no current in the sensor it will output 2.5 V and the ADC will show 3.3V ----- 1023 2.5V ------- X X = 775 But it should be confirmated by pratical experiments. 775 is the real zero signal's center where it will oscilate. Map this value to a virtual zero simulating an 5V ADC (to 2.5 V = 512). Then, to do the rms calculations it's necessary to center the signal in a zero x-axis correcting the offset.) Calculate the rms value in the sampling time and post the loadPower. :sunglasses:

electrical-measurements's Issues

ssh sha1 command

openssl x509 -noout -in cert.pem -fingerprint -sha1