ELECTRONIC I CHING

Published:2013/5/7 21:12:00 Author:muriel | Keyword: ELECTRONIC I CHING | From:SeekIC

This circuit is the electronic emulation of the I Ching, a form of divination originating in China. In the classical form, the response is obtained by the manipulation of 50 sticks or, more practically, by tossing 3 coins. The process must be repeated 6 times in order to complete what is called an hexagram. The various combinations given by the 6 readings are then read with the help of a book: the I Ching in fact or book of changes, used as a guide for the interpretation of the results. As the hexagrams look very much like a binary code, with additions and subtractions to go from one hexagram to the other, I thought that a hardware implementation could be feasible. The circuit reflects faithfully the chances of the I Ching: it is based on a counter which repeats a certain sequence, like a wheel. You may stop this rotation and read the counter status. In order to operate it you have to power it on and push wait , the yellow LED will be on and all other LEDs will be off. After a short while push read , the yellow LED will go off and the other LEDs will be enabled and the information stored in the double counter will be displayed: either red 1 or red 2 will go on representing a YIN and YANG line respectively. The same line becomes a moving line if also the green LED is lit. This is the first line of the hexagram: repeat the process 6 times by pushing again wait and so on. The whole circuit uses 3 ICs: one double counter and two hex inverters MC14049B. Supply voltage can be anything between 3 and 9V.



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