def __init__(self, device, port):
assert device in grove.keys(), device
sensor_type = grove[device]
assert sensor_type in grovepi.keys(), sensor_type
assert port in grovepi[sensor_type].keys(), port
self.device = device
self.port = port
self.pin = grovepi[sensor_type][port]
self.units = units[device]
def get_sensors():
return dumps(grove.keys())
