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deadprogram
37 lines
625 B
Go
37 lines
625 B
Go
//go:build tinygo
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package dht // import "tinygo.org/x/drivers/dht"
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import (
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"machine"
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"time"
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)
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// Check if the pin is disabled
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func powerUp(p machine.Pin) bool {
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state := p.Get()
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if !state {
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p.High()
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time.Sleep(startTimeout)
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}
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return state
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}
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func expectChange(p machine.Pin, oldState bool) counter {
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cnt := counter(0)
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for ; p.Get() == oldState && cnt != timeout; cnt++ {
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}
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return cnt
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}
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func checksum(buf []uint8) uint8 {
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return buf[4]
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}
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func computeChecksum(buf []uint8) uint8 {
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return buf[0] + buf[1] + buf[2] + buf[3]
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}
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func isValid(buf []uint8) bool {
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return checksum(buf) == computeChecksum(buf)
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}
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