Commitb9154be

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battery_voltage: read ADC 10 times

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Lines changed: 6 additions & 1 deletion

Original file line number	Diff line number	Diff line change
`@@ -21,7 +21,12 @@ def read_battery_voltage():`
`21`	`21`	`importrandom`
`22`	`22`	`returnrandom.randint(370,420)/100`
`23`	`23`	`# Read raw ADC value`
`24`		`-raw_value=adc.read()`
	`24`	`+total=0`
	`25`	`+# Read multiple times to try to reduce variability.`
	`26`	`+# Reading 10 times takes around 3ms so it's fine...`
	`27`	`+for_inrange(10):`
	`28`	`+total=total+adc.read()`
	`29`	`+raw_value=total/10`
`25`	`30`	`# Convert to voltage, accounting for divider and reference`
`26`	`31`	`voltage= (raw_value/ADC_MAX)VREFVOLTAGE_DIVIDER`
`27`	`32`	`# Clamp to 0–4.2V range for LiPo battery`

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