Ive been experiencing problems using pins D3 and D4 as pull down pins.
when D3 is connected it doesnt upload and when D4 is connected it uploads but theres no serial output and in both cases the program never starts. the program only runs when D3 and D4 are disconnected during the boot/upload. im not use how to fix this or if it even can be fixed, If theres no way to fix D3 and D4 then i could either use TX and Rx or another io expansion board but im quite space constrained so id rather not. any suggestions or ideas would be welcome
here is a schematic of the board, its wired exactly as shown except the modifications to the esp12f board
#include <ESP8266WiFi.h>
#include <ESP8266mDNS.h>
#include <ArduinoOTA.h>
#include <PubSubClient.h>
#include <pcf8574.h>
//Mqtt
#define USER_MQTT_SERVER "192.168.199.15"
#define USER_MQTT_PORT 1883
#define USER_MQTT_USERNAME ""
#define USER_MQTT_PASSWORD ""
#define USER_MQTT_CLIENT_NAME "ControlMCU"
//Wifi
#define USER_SSID ""
#define USER_PASSWORD ""
WiFiClient espClient;
PubSubClient client(espClient);
PCF8574 ex1(0x20);
const char* ssid = USER_SSID ;
const char* password = USER_PASSWORD ;
const char* mqtt_server = USER_MQTT_SERVER ;
const int mqtt_port = USER_MQTT_PORT ;
const char *mqtt_user = USER_MQTT_USERNAME ;
const char *mqtt_pass = USER_MQTT_PASSWORD ;
const char *mqtt_client_name = USER_MQTT_CLIENT_NAME ;
//Notes
//The pc power commands will likely be under cmnd/tasmota_012CA5/POWER1
//Currently "works", the program will only start if D4 and D3 are disconnected, once started it can be connected
//need to add the bin counting and preset led manager
//Code
char positionPublish[50];
char charPayload[50];
bool boot = true;
int preset = 0;
int lastpressed [] = {0,0,0,0,0};
int activedevices [] = {0,0,0,0,0,0}; // 0=Reading, 1=Bed, 2=Desk, 3=Fan 4=PC 5=TV
int buttonpins[] = {D8,D7,D6,D5,D4,D3}; //D3 is the preset swicher
void setup() {
Serial.begin(115200);
WiFi.mode(WIFI_STA);
setup_wifi();
client.setServer(mqtt_server, mqtt_port);
client.setCallback(callback);
ArduinoOTA.setHostname(USER_MQTT_CLIENT_NAME);
ArduinoOTA.begin();
delay(10);
//Pin shenanigans
for(int i = 0 ; i < 6; i++){
pinMode(buttonpins[i],INPUT_PULLUP);
}
for(int i = 0 ; i < 8; i++){
delay(200);
pinMode(ex1, i, OUTPUT);
pinMode(ex1, i, LOW);
}
pinMode(LED_BUILTIN, OUTPUT); // Define LED as output
digitalWrite(LED_BUILTIN, LOW); // ESP12 Builtin LED
}
void loop()
{
if (!client.connected())
{
reconnect();
}
client.loop();
ArduinoOTA.handle();
MqttOut();
}
void setup_wifi() {
Serial.println();
Serial.print("Connecting to ");
Serial.print(ssid);
WiFi.begin(ssid, password);
while (WiFi.status() != WL_CONNECTED) {
delay(500);
Serial.print(".");
}
Serial.println("");
Serial.println("WiFi connected");
Serial.println("IP address: ");
Serial.println(WiFi.localIP());
}
void reconnect()
{
int retries = 0;
while (!client.connected()) {
if(retries < 150)
{
Serial.println("Attempting MQTT connection...");
if (client.connect(mqtt_client_name, mqtt_user, mqtt_pass))
{
Serial.println("MQTT connected");
if(boot == false)
{
client.publish(USER_MQTT_CLIENT_NAME"/checkIn","Reconnected");
}
if(boot == true)
{
client.publish(USER_MQTT_CLIENT_NAME"/checkIn","Rebooted");
}
client.subscribe("lightsstat/tasmotaRelay0B6F1F/POWER1"); //Fan
client.subscribe("lightsstat/tasmotaRelay0B6F1F/POWER2"); //Bed
client.subscribe("lightsstat/tasmotaRelay0B6F1F/POWER3"); //Reading
client.subscribe("stat/tasmotaRelay1F87DEC/POWER"); //Desk
client.subscribe("stat/PCstat"); //PC
client.subscribe("stat/TVstat"); //TV
}
else
{
Serial.print("failed, rc=");
Serial.print(client.state());
Serial.println(" try again in 5 seconds");
retries++;
// Wait 5 seconds before retrying
delay(5000);
}
}
if(retries > 149)
{
ESP.restart();
}
}
}
void callback(char* topic, byte* payload, unsigned int length)
{
Serial.println("Message arrived:");
String newTopic = topic;
payload[length] = '\0';
String newPayload = String((char *)payload);
int intPayload = newPayload.toInt();
newPayload.toCharArray(charPayload, newPayload.length() + 1);
if (newTopic == "stat/tasmotaRelay1F87DEC/POWER") {
if (newPayload == "ON"){
activedevices[2] = 1;
}
else if (newPayload == "OFF"){
activedevices[2] = 0;
}
}
if (newTopic == "lightsstat/tasmotaRelay0B6F1F/POWER1"){
if (newPayload == "ON"){
activedevices[3] = 1;
}
else if (newPayload == "OFF"){
activedevices[3] = 0;
}
}
if (newTopic == "lightsstat/tasmotaRelay0B6F1F/POWER2"){
if (newPayload == "ON"){
activedevices[1] = 1;
}
else if (newPayload == "OFF"){
activedevices[1] = 0;
}
}
if (newTopic == "lightsstat/tasmotaRelay0B6F1F/POWER3"){
if (newPayload == "ON"){
activedevices[0] = 1;
}
else if (newPayload == "OFF"){
activedevices[0] = 0;
}
}
if (newTopic == "stat/PCstat"){
if (newPayload == "ON"){
activedevices[4] = 1;
}
else if (newPayload == "OFF"){
activedevices[4] = 0;
}
}
if (newTopic == "stat/TVstat"){
if (newPayload == "ON"){
activedevices[5] = 1;
}
else if (newPayload == "OFF"){
activedevices[5] = 0;
}
}
for(int i = 0; i < 6; i++){
Serial.print(activedevices[i]);
if (activedevices[i] == 1){
digitalWrite(ex1, i, HIGH);
} else {
digitalWrite(ex1, i, LOW);
}
}
Serial.println ("");
Serial.println ("");
}
void MqttOut()
{
delay(100);
int active = 0;
if (digitalRead(buttonpins[5]) == HIGH){ //detects the preset button and ajusts accordingly
preset++;
if (preset > 8){
preset = 0;
}
delay(100);
Serial.println (preset);
}
for (int i = 0; i < 5; i++){
if (digitalRead(buttonpins[i]) == HIGH){
active = 1;
}
if (lastpressed[i] == 1 && active == 1){
active = 0;
} else {
lastpressed[i] = 0;
}
if (active == 1){
int location = (preset * 5) + i + 1;
switch (location){
case 1:
client.publish("cmnd/tasmotaRelay1F87DEC/Power1","TOGGLE"); //DeskLight
break;
case 2:
client.publish("lightscmnd/tasmotaRelay0B6F1F/Power2","TOGGLE"); //BedLight
break;
case 3:
client.publish("lightscmnd/tasmotaRelay0B6F1F/Power3","TOGGLE"); //ReadingLight
break;
case 4:
client.publish("lightscmnd/tasmotaRelay0B6F1F/Power1","TOGGLE"); //Fan
break;
case 5:
client.publish(USER_MQTT_CLIENT_NAME"/Commands/PowerPC","TOGGLE"); //PC
break;
default:
break;
}
lastpressed[i] = 1;
active = 0;
}
}
}
void checkIn()
{
client.publish(USER_MQTT_CLIENT_NAME"/checkIn","OK");
}
