Make an LED clock using ESP8266 - no RTC required. Wi-Fi enabled to automatically set the time.

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A 8 digit LED clock showing the time including seconds which synchronises with the NTP protocol on the hour for accurate time keeping. No RTC required and uses the ESP8266 NodeMCU to handle NTP requests and generate the bit patterns etc for the ICM7218A / ICM7228A LED driver IC. WiFi credentials are configured by a web browser and stored in EEPROM so there is no need to hard code the SSID and password in the code. Daylight saving time is handled by a button that toggles it on and off.

This video is a quick demonstration but basically in a nutshell the project is powered by a Wi-Fi connected microcontroller which allows the unit to sync time with the global NTP server every hour. Connectivity is configured via a simple web interface so no need to edit and upload the firmware every time you need to change Wi-Fi networks.

#esp8266
#iotprojects
#diyelectronics
#7segment

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Hi Adrian, i recently came across this project of yours whilst i was searching for ways to control a segmented display ive salvaged, it has got a ICM7218A and im wondering if its possible to use your code with an esp32 instead of a esp8266?

ryb

Make an LED clock using ESP8266 - no RTC required. Wi-Fi enabled to automatically set the time.

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