TIME LOOP Clock: accuracy with celestial connections

Introducing the TIME LOOP Clock
Accurate local time with celestial connections

The TIME LOOP Clock provides automatic to-the-second time accuracy with a dynamic display that adjusts hues and brightness based on the real-time position of both the sun and moon.

TIME LOOP Clock

TIME LOOP Clock: showing 1:45:44 PM in daylight hues

TIME LOOP Clock:

TIME LOOP Clock: beautifully coloured time display that dynamically adjusts based on the position of the sun and moon

Time Loop

Time Loop: moon rise and moon set

Time Loop

Time Loop: sunrise and sun set

Time Loop

Time Loop: time mode

TIME LOOP Clock:

TIME LOOP Clock: showing 10:13 PM in its night time hues. Note that the moon was not in the sky so the hues reflect this.

TIME LOOP Clock:

TIME LOOP Clock: showing 8:25 AM with its daytime hues. The brightness of the display is based on the current time relative to solar noon

The TIME LOOP Clock is a 182mm (7.2″) diameter wall-mounted clock that sports a ring of LEDs used to tell the time. Based on conventional analogue clock faces, hours are displayed as single fixed points of light, minutes fill or empty around the ring while a second ‘hand’ gently pulses and traverses the ring. The hues of the display automatically adjust based on the position of the sun and moon. During daylight hours, the brightness of the display adjusts based on the current time relative to solar noon while nighttime hues are chosen based on moon rise and moon set times.

Location-specific information for the TIME LOOP Clock is entered into a web-based application that can be viewed on your PC. Mac or Smart Phone. This information includes access credentials to the local WiFi network of choice, the local time zone (relative to Greenwich Mean Time), latitude and longitude coordinate values, and whether or not daylight savings is used in the time zone.

Once set, the TIME LOOP Clock connects to the local WiFi network, automatically obtains real-time information from an atomic clock time-server, adjusts to the local time and displays the time based on the dynamically calculated positions of the sun and moon.

TIME LOOP Clock

TIME LOOP Clock: installed in Lise’s study. Note the small extra switch that allows Lise to disable the display as needed.

A button on the front of the TIME LOOP Clock shows a 24 hour clock that displays either sunrise and sunset times, or moon rise and moon set times. If the button is pressed before power is applied to the clock, it resets all location-specific information and waits for this data to be entered into its web server.

The TIME LOOP Clock is housed in a two-part enclosure, machined using my CNC. The front is cut from 12mm HDPE while the back panel is cut from 6mm thick HDPE. The two parts are joined by five M3 stainless steel machine screws.

The electronics is based around an ESP8266-12 module, a 5V switching regulator and a ring of 60 WS2812 addressable LEDs. Level shifting between the 3.3v processor and the 5V LED strip is performed using a single n-channel FET. Power is supplied by a 6-9V “wall-wart” through a standard 5.5mm power jack.

TIME LOOP Clock:

TIME LOOP Clock: showing its guts

TIME LOOP Clock:

TIME LOOP Clock: two part HDPE enclosure. The back panel also includes keyholes for wall hanging

TIME LOOP Clock:

TIME LOOP Clock: close-up of the ESP8266 WeMos Mini D1 board, 5V switching regulator and handful of passives. The FET used for level shifting is in the top centre of the image.

Nice to show my heavenly connections!

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