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This is a combination of 2 commits.

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aio: mraa_aio_read (v1.0.0) can now return -1, treat that in sensors using it

Adds alot of exceptions if the aio read goes wrong

Signed-off-by: Brendan Le Foll <brendan.le.foll@intel.com>
Signed-off-by: Noel Eck <noel.eck@intel.com>
This commit is contained in:
Brendan Le Foll
2016-04-25 14:29:41 +01:00
committed by Noel Eck
parent f6816797bb
commit e51c5f3018
17 changed files with 64 additions and 11 deletions
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src/groveo2/groveo2.cxx
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@ -49,6 +49,7 @@ GroveO2::~GroveO2()
float GroveO2::voltageValue()
{
int val = mraa_aio_read(m_aio);
if (val == -1) return -1.0f;
float sensorVoltage = (val/1024.0) * 5.0;
sensorVoltage = (sensorVoltage/201.0) * 10000.0;
return sensorVoltage;