Page 105 - Robots Androids and Animatrons : 12 Incredible Projects You Can Build

West Northwest North Northeast
East

Southwest Southeast

South
= On
= Off
5.31 LED lighting sequence

Table 5.4 LED Sequences
84
Direction LEDs Decimal equivalent Inverted
North 0001 1 14
Northeast 0011 3 12
East 0010 2 13
Southeast 0110 6 9
South 0100 4 11
Southwest 1100 12 3
West 1000 8 7
Northwest 1001 9 6

1525 electronic analog compass
In most cases the 1490 directional information is more than suffi-
cient for a robot. However, there will be cases when high-resolu-
tion directional information may be important. In this case one
may use the 1525 electronic compass (see Fig. 5.32).
The signal output from the 1525 is much harder to read than that
of the 1490, but the tradeoff is that the 1525 electronic compass
provides a directional resolution of approximately 1 degree.

Team LRN
Chapter five