Line 2: Sunrise, maximum solar elevation (actual solar angle during the day), sunset. With it I can toggle the clock through various displays as shown below.
Two areas of particular interest to the site members may be the control of the 16 IV-11 VDF tubes using two MAX6921AWI chips and its associated wiring, and the communications between two Mega 2650 cards. These controls are not used by the clock, except for button 1.
I decided to include this project onto the Instructables site not expecting members to reproduce this project in its entirety but rather to cherry pick the elements that where of interest to them. Apart from the above parts list, two software programs had to developed from scratch and finally the construction of the entire radio required about 200 hours of work. Each satellite for each system has an atomic clock, which is continously monitored and set by NORAD every single day: Conceptually, the receiver measures. This project is without doubt the most complex I have undertaken, with sixteen IV-11 VFD tubes, two Arduino Mega cards, ten LED Neon light circuits, a servo, an electromagnet, two MAX6921AWI IC Chips, five DC power supplies, a HV power supply, two DC Volt meters, a DC Amp meter, FM stereo radio, 3W power amplifier, LCD screen, and keyboard. The main feature of this project is that it will display date, time, will Alarm on the desired time and it has a function of radio too.
#ARDUINO RADIO CLOCK HOW TO#
The project is controlled by a pair of Arduino Mega boards linked together via I2C, and Thompson’s write-up has all sorts of tidbits for potential retro-display builders. This project describes how to make the alarm clock radio in Arduino.
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