NOTE: You must change line Serial.println(String(WiFi.localIP()); in Serial.println(WiFi.localIP()); !!!!

ESP8266-LED-Matrix-Clock

inspired by https://github.com/schreibfaul1/ESP8266-LED-Matrix-Clock

my articles:

• https://nicuflorica.blogspot.com/2019/03/ceas-matriceal-animat-cu-esp8266-si-rtc.html

• https://nicuflorica.blogspot.com/2019/04/ceas-matriceal-animat-cu-esp8266-si-rtc.html

• https://nicuflorica.blogspot.com/2019/04/ceas-matriceal-animat-cu-esp8266-si-rtc_11.html

• http://nicuflorica.blogspot.com/2019/05/ceas-matriceal-animat-cu-esp8266-si-rtc.html

• http://nicuflorica.blogspot.com/2019/09/ceas-matriceal-animat-cu-esp8266-si-rtc.html

NOTE: LAST STABLE VERSION IS /MatrixClock_ESP8266_DHT_3e1.ino !

classical clock:

schematic with automatic brightness (using LDR = photoresistor):