WebNov 27, 2024 · I am using a esp32 with a ds3231 and relays. I want to trigger these relays by time. Run one relay for 6 hours and run another for 6 hours. Like 1 -6 om one relay and 7-16 on the other. I want to see the time they run per day and week month. So right now I got to get the code working and then upload to the community. Thanks for the help `#include …
How to Interface Real-Time Clock (RTC) DS3231 Module with …
WebMay 30, 2024 · readDS3231time (&second, &minute, &hour, &dayOfWeek, &dayOfMonth, &month,&year); min_read = minute; if ( (min_on + min_read) >= minute ) { Serial.print ("Light on"); Serial.print (" The value of min_on+min_read is:"); Serial.println (min_on + min_read); } else { Serial.print ("Light off"); Serial.print (" The value of min_off+min_read is:"); WebDS3231 GPS Updater //Quick and dirty (it's pretty dirty) automatic GPS time updater for DS3231 RTC. //Tested with DS3231 (of course) and a GY-NEO6MV2 GPS Module. //Other NMEA GPS modules compatible with TinyGPS "should" work out of the box. //RTC's other than the DS3231 will probably not work with this code. importance of cyber security policy
Temperature Logger with Arduino - NerdyElectronics
WebDec 21, 2024 · void readDS3231time (byte *second,byte *minute,byte *hour,byte *dayOfWeek,byte *dayOfMonth,byte *month,byte *year) { Wire.beginTransmission (DS3231_I2C_ADDRESS); Wire.write (0); // set DS3231 register pointer to 00h Wire.endTransmission (); Wire.requestFrom (DS3231_I2C_ADDRESS, 7); WebJul 29, 2024 · Figure 2: DS3231 Datasheet showing Crystal Aging According to its datasheet for the first year, its accuracy is about ppm i.e. there’s a deviation of 1 second in every 1 million seconds. If we calculate this time in the day, then for the first year there might be a deviation of 1 second in every 11.57 days. Webvoid setDS3231time ( byte second, byte minute, byte hour, byte dayOfWeek, byte dayOfMonth, byte month, byte year) { // sets time and date data to DS3231 Wire. beginTransmission (DS3231_I2C_ADDRESS); Wire. write ( 0 ); // set next input to start at the seconds register Wire. write ( decToBcd (second)); // set seconds importance of cyber security in prisons