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sago35
37 lines
499 B
Go
37 lines
499 B
Go
package main
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import (
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"fmt"
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"machine"
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"time"
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"tinygo.org/x/drivers/pcf8563"
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)
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var (
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i2c = machine.I2C0
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rtc = pcf8563.New(i2c)
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)
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func main() {
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i2c.Configure(machine.I2CConfig{Frequency: machine.TWI_FREQ_400KHZ})
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rtc.Reset()
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rtc.SetTime(time.Date(2006, 1, 2, 15, 4, 5, 0, time.UTC))
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prev := -1
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for {
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for {
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t, _ := rtc.ReadTime()
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if prev != t.Second() {
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fmt.Printf("%s\r\n", t.String())
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prev = t.Second()
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break
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}
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time.Sleep(time.Millisecond * 100)
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}
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}
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}
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