Humm... Could be. This is a "Do It"board. Also it is missing the flickering led that shows a sketch is being uploaded. I wonder if this is common in all of there boards or just in my special board.

Sprinkfitter

Any idea what this is??

Thank You for your responds. I have not run into any trouble powering the chip through the 5 volt pin with an external power supply. I will try to hook up the lcd to my backup esp32 this week. Thank You for your help I will let you know how that goes.

Sprinkfitter

I must ask ask a very tough question. Setting up and clock with an lcd on i2c bus. To early in design for this? Any info at all
Thank You for the info

Sprinkfitter

Looking for some advice. I have a DS 3231 clock on an I2C bus. I was thinking about putting a 20x4 LCD on this bus line. I know I could assign another I2C the ESP 32 but I would like to hook it up to the same bus as the DS3231. I like to find an tutorial to hook multiple devices on an I2C bus line. ...

I got this code to compile but get fatal error Failed to connect to esp32 Time out waiting for packet header. I have uploaded a sketch to check if Esp32 was working. It work fine for two different sketches. #include "Wire.h" #define SDA_PIN 21 #define SCL_PIN 22 #define DS3231_I2C_ADDRESS 0x68 const...

I have been working to call the byte hours and minutes #include "Wire.h" #define SDA_PIN 21 #define SCL_PIN 22 #define DS3231_I2C_ADDRESS 0x68 const int relay1 = 2; //Digital pin that the Relay is connected const int relay2 = 5; //Digital pin that the Relay is connected const int OnHour1 = 12; const...

Sorry very new to the forum. Very new to the board and very new to the Ardinuo. IDE. I have search the web looking for a library that works with the rtc and esp32. I want to trip these relays by time like (24 hour) On at 6 hour off at 12 hour for the first relay and on 13 and off 20 for the second r...

New guy here. Have I posted this in the wrong forum?? Sorry just looking for some help. Thanks to all!!!

Sprinkfitter

#include "Wire.h" #define SDA_PIN 21 #define SCL_PIN 22 #define DS3231_I2C_ADDRESS 0x68 const int relay1= 2;//Digital pin that the Relay is connected const int relay2= 5;//Digital pin that the Relay is connected // Convert normal decimal numbers to binary coded decimal byte decToBcd(byte val) { ret...