details

Sump Pump Monitor

This project is an example of WIZwiki-W7500 board.
User can monitor sensors easily by using WIZnet platform.
This project would be included in Sensing & Gathering category of WIZnet Museum.

Hardware components:

-. WIZnet WIZwiki-W7500

-. SCT-013-030 Non-invasive AC current sensor

-. 5v DC power supply

-. Resistor 10k ohm

-. Capacitor 10 uF

-. CAT5 Ethernet cable

Software apps and online services:

-. PC Monitor software(Download files from ABEtronics web site.)

-. WIZwiki-W7500 firmware

Story

Motivation

After my basement flooded, I wanted to make sure the sump pump was running properly. So this project measures the AC current of a sump pump in real-time. The data values calculated utilizing these measurements are sump pump cycles, gallons pumped, and the run times. The information calculated is used for data logging and viewing trends.

How Does it Work

The amp data is sent to a PC running the monitor software which records trends in the pump data.

WIZwiki-W7500 board installed inside an AC load center.

Screen Shots

Code

#include "mbed.h"
#include "EthernetInterface.h"
#include <stdio.h>
#include <string.h>

#define USE_DHCP 0 // 0= no dhcp
#define MAC "\x00\x08\xDC\x11\x34\x78"
#define IP "192.168.0.12"
#define MASK "255.255.255.0"
#define GATEWAY "192.168.0.254"
#define HTTPD_SERVER_PORT 80
#define HTTPD_MAX_REQ_LENGTH 1023
#define HTTPD_MAX_HDR_LENGTH 255
#define HTTPD_MAX_FNAME_LENGTH 127
#define HTTPD_MAX_DNAME_LENGTH 127

#if defined(TARGET_WIZwiki_W7500)
Serial uart(USBTX, USBRX);
#include "static_colors.h"
// LED R     : server listning status
// LED GREEN : socket connecting status Ok
// LED BLUE  : socket connecting status Busy
#endif

EthernetInterface eth;
TCPSocketServer server;
TCPSocketConnection client;

//========================================================
// Data Variables.
//========================================================
int LP1,LP2,LP3;
float AMP_Reading_on_AO, AMPreadingHI, AMPreading;
char buffer[HTTPD_MAX_REQ_LENGTH+1];
char httpHeader[HTTPD_MAX_HDR_LENGTH+1];

//-----------------------------------------------------------
// Initialize a pins to perform analog input
//-----------------------------------------------------------
AnalogIn ain0(A0);

//-----------------------------------------------------------
void Serial_Interface_init(void)
//-----------------------------------------------------------
{
	// Serial Interface eth;
	// Serial port configuration:
	// 9600 baud, 8-bit data, no parity, stop bit
	uart.baud(9600);
	uart.format(8, SerialBase::None, 1);
	uart.printf("Initializing\n");
	wait(1.0);
}

//-----------------------------------------------------------
void ethernet_init(void)
//-----------------------------------------------------------
{
	// EthernetInterface eth;
	uart.printf("Initializing Ethernet\n");
	
	#if USE_DHCP
		//eth.init Use DHCP
		// Use DHCP for WIZnetInterface
		int ret = eth.init((uint8_t*)MAC);
		uart.printf("Connecting DHCP\n");
	#else
		// IP,mask,Gateway
		int ret = eth.init((uint8_t*)MAC,IP,MASK,GATEWAY);
		uart.printf("Connecting (IP,mask,Gateway)\n");
	#endif
	
	wait(1.0);
	// Check Ethernet Link-Done
	uart.printf("Check Ethernet Link\r\n");
	
	if(eth.link() == true)
	{
		uart.printf("- Ethernet PHY Link - Done\r\n");
		COLOR(_RED_);
	}
	else
	{
		uart.printf("- Ethernet PHY Link - Fail\r\n");
		COLOR(_BLACK_);
	}
	
	wait(1.0);
	if(!ret)
	{
		uart.printf("Initialized, MAC: %s\r\n", eth.getMACAddress());
		ret = eth.connect();
		if(!ret)
		{
			uart.printf("IP: %s, MASK: %s, GW: %s\r\n",
			eth.getIPAddress(), eth.getNetworkMask(), eth.getGateway());
			COLOR(_CYAN_);
		}
		else
		{
			uart.printf("Error ethernet.connect() - ret = %d\r\n", ret);
			COLOR(_YELLOW_);
			exit(0);
		}
	}
	else
	{
		uart.printf("Error ethernet.init() - ret = %d\r\n", ret);
		COLOR(_BLACK_);
		exit(0);
	}
	
	wait(1.0);
	// TCPSocketServer server;
	server.bind(HTTPD_SERVER_PORT);
	server.listen();
	uart.printf("Server Listening\n");
}

//-----------------------------------------------------------
void VAC_Zero_Cross(void)
//-----------------------------------------------------------
{
	LP1=0;
	// Indicator to exit while loop
	if (LP2==1)
	{
		//Waits for the waveform to be close to 'zero' (500 adc)
		while(LP1==0)
		{
			wait_us(100);
			AMPreading=ain0.read();
			//check its within range. (+/- 5)
			if ((AMPreading < 0.5) && (AMPreading > 0.4))
			{
				LP1=1;
			}
		}
	}
	LP2=1;
}

//-----------------------------------------------------------
void Measure_AMPS(void)
//-----------------------------------------------------------
// Measure AC Current.
// 12bit ADC, 10MHz = 0.1usec conversion time.
// 12bit ADC (0-3.3v = 0-4095 values) 3.3/4096 = 0.81mv
// 1.65v = 2047 = 0 amps.
//-----------------------------------------------------------
{
	AMPreadingHI=0.0;
	for (LP3=0; LP3<100; LP3++)
	{
		wait_us(200);
		AMPreading=ain0.read();
		if (AMPreadingHI < AMPreading) AMPreadingHI = AMPreading;
	}
	if (AMPreadingHI <0.51)
	{
		COLOR(_BLUE_);
	}
	else
	{
		COLOR(_GREEN_);
	}
	AMP_Reading_on_AO = AMPreadingHI;
	uart.printf("$%2.2f!", AMPreading);
	sprintf(httpHeader,"$%2.2f!", AMP_Reading_on_AO);
	//send amps to PC.
	client.send(httpHeader,strlen(httpHeader));
}


//===================================================================
int main(void)
//===================================================================
{
	//RGB LED:
	//WHITE = program running.
	//RED   = not connected to PC.
	//GRN   = pump running.
	//BLUE  = pump not running.
	
	Serial_Interface_init();
	ethernet_init();
	LP1=0; // Indicator to exit while loop
	LP2=0;
//-----------------------------------------------------------
	while(true)
//-----------------------------------------------------------
	{
		uart.printf("\nWait for new connection...\r\n");
		server.accept(client);
		client.set_blocking(false, 1500); // Timeout after (1.5)s
		uart.printf("Connection from: %s\r\n", client.get_address());
//-----------------------------------------------------------
		while(true)
//-----------------------------------------------------------
		{
			if(!client.is_connected())
			{
				COLOR(_RED_);
				break;
				//exit while
			}
			// Mesure ADC 0 - Check Sump Pump Run Status
			VAC_Zero_Cross();
			Measure_AMPS();
			wait(1.0);
			COLOR(_WHITE_);
		}
//-----------------------------------------------------------
		client.close(); //close connection to pc app.
		ethernet_init();

If you want to know more in detail, refer to

Source : https://www.hackster.io/user366764/sump-pump-monitor-deb5b4?utm_source=hackster&utm_medium=email&utm_campaign=new_projects взять в банке рефинансирование

Collected by Jim : jim@wiznet.io