Rail power switching would provide a way to reset all the sensor modules should something go awry that cannot be recovered from (experienced with the CO2 sensor and a re-plug was necessary). This would also enable the module string to be powered off once the Pi shuts down, which does not happen currently.
Rail power switching would provide a way to reset all the sensor modules should something go awry that cannot be recovered from (experienced with the CO2 sensor and a re-plug was necessary). This would also enable the module string to be powered off once the Pi shuts down, which does not happen currently.