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WiFi sync precision dot matrix clock

A Max7219 dot matrix clock always at right time. WiFi sync with NTP.

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I was tired of battery clocks, which delays when the battery weakens. Problem solved with a digital clock that syncs itself via WiFi and NTP! Also with WiFiManager.

Details on GitHub

Precision WiFi Sync Dot Matrix Clock

ESP_LEDMatrix_Clock_NTP_WM.ino

ino - 5.49 kB - 02/17/2020 at 00:54

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nodemcu-master-22-modules-2018-03-30-21-50-21-integer.bin

NodeMCU integer Firmware

macbinary - 633.45 kB - 08/09/2018 at 23:28

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nodemcu-master-22-modules-2018-03-30-21-50-21-float.bin

NodeMCU floating Firmware

macbinary - 646.52 kB - 08/09/2018 at 23:28

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fonts.h

h - 11.30 kB - 08/09/2018 at 23:25

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max7219.h

h - 2.90 kB - 08/09/2018 at 23:25

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  • 1 × Nodemcu V3 $2.50 USD AliExpress / ebay
  • 1 × Max7219 Dot Matrix $3.50 USD AliExpress / ebay
  • 1 × 6vdc Power adapter $3.00 USD AliExpress / ebay
  • 1 × Hammond 1591D Polycarbonate Box $8.50 USD AliExpress / ebay
  • 7 × Dupont cables

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