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3-Way Display Alarm with 2.2-inch screen - KIT (170112-71)

3-Way Display Alarm with 2.2 inch TFT screen


The Three-Displays Alarm Clock alternates its display between three different formats.
It is based on an Atmega328P-PU and has a 2.2” 240 x 320 TFT screen, three user menu buttons, an alarm button, a buzzer, and a light detector (LDR) that can be used to dim the display at night automatically.

An external real-time clock (RTC) with a supercapacitor provides backup to overcome power failures of several days.

Price $70.00

Member price $63.00

In Stock

This item expected shipping time is 3 days.

Details

This alarm clock changes each hour the format of the time displayed on an LCD screen. The clock is running on an Atmega328P-PU microcontroller from Atmel (12MHz). The software is written in the Arduino IDE. The Atmega328P-PU can be programmed on an Arduino Uno or through the SPI pins on the main board of the clock.

Three user buttons allow browsing through the menu for settings:
“OK,” “+,” “–.” A fourth user button turns the alarm on or off quickly.
Light-sensitive sleepers can dim the light of the display (using an LDR).
When unplugged, the clock holds the time for more than three days thanks to a 3.6V, 1H supercapacitor.

A 3D design of the frame can be downloaded as an STL file and printed with a 3D printer. The frame will cover the circuitry of the three displays alarm clock and makes it a great looking clock.
SKU 18556
Manufacturer Elektor Labs
Editorial Number 170112-71

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