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esp8266_ntp_clock

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@electricant

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KiCad projectAll 4 files, ready to open in KiCad76 KB3D modelThe board with its parts, for an enclosure (GLB)3.3 MB
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README

ESP8266_NTP_clock

Very basic bedside digital clock using the NTP8266 to sync the time using NTP.

Features

This started as a whish list and expanded during development. Since this is an open-ended project this list may grow. Never settle!

  • Synchronize time using my local network NTP server
  • Receive and display temperature and humidity readings from my external weather station. This way I know at a glance how to get dressed in the morning.
  • Backlight support either triggered by a button or automating using a photoresistor
  • DST support without requiring an external library

Firmware

Required libraries:

  • PubSubClient
  • TimeLib
  • ArduinoJson
  • qd_sched - simple scheduler for repetitive tasks

The code uses a local, improved version of the EasyNTPClient library. It is available as a git submodule.

PCB/Mechanical assembly

There's not much to it actually. Just a PCB the same size of the display. The display board and the control PCB are sandwiched together using M2.5 hex standoffs. The display conencts to the mainboard using 2.54mm headers.

Pictures

3D rendering of the PCB:

Prototype (I swear it is not a bomb officer):

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