Created
March 17, 2019 19:48
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tinygo year counter
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https://play.golang.org/p/jBSgaIlNK1R | |
package main | |
import ( | |
"machine" | |
"time" | |
) | |
func enumerate() { | |
var x, y uint8 | |
for y = 0; y < 5; y++ { | |
for x = 0; x < 5; x++ { | |
machine.SetLEDMatrix(x, y) | |
time.Sleep(time.Second) | |
} | |
} | |
} | |
func display(c uint32) { | |
machine.ClearLEDMatrix() | |
var x, y uint8 | |
for y = 0; y < 5; y++ { | |
for x = 0; x < 5; x++ { | |
// If the number is odd, illuminate this LED | |
if c&1 == 1 { | |
machine.SetLEDMatrix(x, y) | |
} | |
// Halve the number | |
c = c>>1 | |
} | |
} | |
} | |
func main() { | |
machine.InitLEDMatrix() | |
enumerate() | |
time.Sleep(time.Second * 5) | |
var c uint32 | |
for { | |
// 25(5*5) LEDs: 2^25 = 33554432 | |
// Curiously this ~== number of seconds in a year | |
// So, this should take about a year to complete | |
for c = 0; c < 33554432; c++ { | |
display(c) | |
time.Sleep(time.Second) | |
} | |
} | |
} |
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