Analogue Sensor Ports

Pinout

5-pin 180° DIN socket

Pin	Function
1	Analogue signal input
2	GND (0V)
3	VCC (+5V)
4	Sense signal output
5	Vref (+2.55V)

Analogue input

The expected analogue input on pin 1 is between 0V and V_ref (+2.55V) which will correspond to a reading of between 0 and 255 in the SmartMove software.

Each unit on the analogue input can therefore be said to correspond to 1/100V.

Sense output

To identify the different types of Smart Sensor software on the Smart Box will drive the "Sense" pin 4 high approximately once per second. When the sense pin is driven high sensors should return a voltage corresponding to their sensor type to the Smart Box's analogue input. This can be implemented in your own sensors using an analogue multiplexer/demultiplexer (such as the 4053 IC) to switch between the sensor's output voltage when sense is low and the sensor's ID voltage when sense is high, e.g. produced by a trim pot between 0V and V_ref.

Sensor IDs

There are 32 possible sensor IDs. The ADC reading mentioned in the table below is the minimum value that will cause the Smart Move software to identify a particular sensor, for example a humidity sensor can be identified with an ADC reading between 157 and 164.

Note that Smart Move 1.16 and Smart Move 1.18 have some different names for some sensors. If a space is left blank in the table then the sensor is treated as present but is labelled "SENSORA" to "SENSORD" instead of being renamed according to the sensor type.

ADC	Smart Move 1.16	Smart Move 1.18
0	No sensor	No sensor
5	mT
13	mm	Temp
21	No sensor	No sensor
29	No sensor	No sensor
37	Temp	Volts
45	Temp	Temp
53	mA	Volts
61	Sound	Temp
69	Sound	Sound
77	Sound	PH
85	Pulse
93	Position	Position
101
109
117
125	Light	Light
133
141
149
157	Humidity	Humidity
165		Sound
173		Light
181	Pressure	Sound
189
197	PH	Atmos
205		Light
213		User
221	Adaptor	Adaptor
229	Lux	Temp
237	Volts	LGate
245	Wind
253	Temp	Temp