pinMode causing difficulties with WiFi
Posted: Thu Oct 22, 2020 2:09 amI'm working on an IoT project which sends data to thingspeak using wifi and IR sensors. but when I initialize pinMode for Sensors and LEDs the board has difficulties connecting to wifi
Here is an image of the Serial Monitor
But when I remove the pinMode the board gets connected to WiFi.
I'm a beginner with NodeMCU and wifi. Apologies if it is a silly error.
I can't find the error.
Code: Select all
//Include the Libraries Needed
#include <ESP8266WiFi.h>
#include "ThingSpeak.h"
#include <ESP8266HTTPClient.h>
//Initialize wifi server
WiFiServer server(80);
WiFiClient client;
HTTPClient http;
//Initialize some Variables
//HIGH means No Obstacle -> No Vehicle
// Data Variables for IR Sensors
int lane1[3] = {HIGH,HIGH,HIGH};
int lane2[3] = {HIGH,HIGH,HIGH};
//Sound Sensor
int data_sound = HIGH;
// Count Variables for No of Vehicles in a Lane
int count1 = 0;
int count2 = 0;
int j=0;
String i;
void setup(){
pinMode(0,INPUT);// 6 IR sensors
pinMode(2,INPUT);
pinMode(14,INPUT);
pinMode(12,INPUT);
pinMode(13,INPUT);
pinMode(15,INPUT);
pinMode(16,INPUT); // Sound Sensor
pinMode(5,OUTPUT); // Lane1 RED LED
pinMode(4,OUTPUT); // Lane2 RED LED
pinMode(10,OUTPUT); // Lane1 GREEN LED
pinMode(9,OUTPUT); // Lane2 GREEN LED
i = "";
//Setup WiFi and Serial Communiation
Serial.begin(9600);
WiFi.disconnect();
delay(3000);
WiFi.begin("Prodduturi","sahithya123");
Serial.println(".");
while ((!(WiFi.status() == WL_CONNECTED))){
delay(300);
ThingSpeak.begin(client); // Initialize ThingSpeak
}
Serial.println("connected");
Serial.println((WiFi.localIP().toString()));
server.begin();
}
void loop(){
count1 = 0;
count2 = 0;
//Setup IR sensors and Sound module to read data into data fields
lane1[0] = digitalRead(0);
lane1[1] = digitalRead(2);
lane1[2] = digitalRead(14);
lane2[0] = digitalRead(12);
lane2[1] = digitalRead(13);
lane2[2] = digitalRead(15);
/*lane1[0] = HIGH;
lane1[1] = LOW;
lane1[2] = LOW;
lane2[0] = LOW;
lane2[1] = LOW;
lane2[2] = LOW;*/
data_sound = digitalRead(16);
//Count the Vehicles
for(j = 0; j < 3; j++){
if(lane1[j] == LOW){
count1+=1;
}
}
Serial.println("Lane2 Vehicle Count = " + count1);
for(j = 0; j < 3; j++){
if(lane2[j] == LOW){
count2+=1;
}
}
Serial.println("Lane2 Vehicle Count = " + count2);
// Setup for LED's
//If a Lane has Three Vehicles(Max Count) then the lane shows Red otherwise Green
//For Lane1 which has a sound sensor to override when Sound
//is detected the Lane1 gets Green and others get Red
if(data_sound == LOW){ // LOW Means SOUND is Present
digitalWrite(10, HIGH); // Lane1 made Green
digitalWrite(4, LOW); // Lane2 made Red
}
else{
if(count1 == 3){
digitalWrite(5, HIGH); // 3 Vehicles so RED -> HIGH
digitalWrite(9, LOW); // GREEN -> LOW
}
if(count2 == 3){
digitalWrite(4, HIGH); // 3 Vehicles so RED -> HIGH
digitalWrite(10, LOW); // GREEN -> LOW
}
else{
digitalWrite(9,HIGH); // Less than 3 so GREEN HIGH
digitalWrite(10,HIGH); // Less than 3 so GREEN HIGH
digitalWrite(4,LOW); // RED -> LOW
digitalWrite(5,LOW); // RED -> LOW
}
}
// Write Data to ThingSpeak
//Field 1
int x1 = ThingSpeak.writeField(1189296, 1,count1, "R9UKP4J869N94RSW");
if(x1 == 200){
Serial.println("Field 1 update successful.");
}
else{
Serial.println("Problem updating Field 1. HTTP error code " + String(x1));
}
delay(20000); // Wait 20 seconds to update the channel again
//Field 2
int x2 = ThingSpeak.writeField(1189296, 2,count2, "R9UKP4J869N94RSW");
if(x2 == 200){
Serial.println("Field 2 update successful.");
}
else{
Serial.println("Problem updating Field 2. HTTP error code " + String(x2));
}
delay(20000); // Wait 20 seconds to update the channel again
}Here is an image of the Serial Monitor
But when I remove the pinMode the board gets connected to WiFi.
I'm a beginner with NodeMCU and wifi. Apologies if it is a silly error.
I can't find the error.