Internal Sensor Module
This is the Internal Sensor Module. This connects to the White Star Bus, and includes an Arduino FIO as a Microcontroller module. Included are connectors for the 6-pin Cloud/Dust Sensor, and a header for the external temperature and humidity measurement board. Also included are optional components for an I2C level boost to the external temperature and humidity measurement board. Furthermore, a 3-axis accelerometer is included for completeness. Digital Pins are broken out into headers for more GPIO. The FIO can also be used to house an Xbee for wireless sensing applications (freeing the communications board).
Sensors connected
- Xbee remote temp sensor | temp sensor over xbee up at the top
- Analog cloud dust sensor | SHARP GP2Y1010AU0F
- Analog Humidity sensor | HIH-4030
- I2C Temp Sensor | tmp 100
i2c stuff
| Device | Address | arduino Hex Add | atmel | Location |
|---|---|---|---|---|
| Int Sensor Module* | 0b0001010 | 0xA | 0x14 | Internal Sensor Module |
| SensorType String | Practice safe HEX | Sensor | Description |
|---|---|---|---|
| 01001 | 0x9 | Dust Sensor | Arbitrary value type int always positive |
| 00100 | 0x4 | Humidity | gives you humidity, needs to be calculated for a 3.3v type int always positive |
| 01010 | 0xA | Xbee Temp Sensor | Top of the balloon type int |
| 01110 | 0xE | Camera 5 Min | Run record 5 Mins |
| 01100 | 0xC | Camera On | Starts to record |
| 01101 | 0xD | Camera Off | Stops the record |
| 00001 | 0x1 | DEBUG toggle | toggles serial debug : default off |
| 00010 | 0x2 | Sleepmode toggle | toggles sleep mode : default on |
Read a Sensor Value from Controller
Send Sensor Choice as one byte Dust Sensor = 0x9 Humidity = 0x4 Xbee Temp Sensor = 0xA Sensor Board always return 2 bytes 1st Byte is MSB 2nd Byte is LSB Calculate total value as ((MSB * 256) + LSB)
External sensor Breakout
65cm Wires
| Pin | Function | wire |
|---|---|---|
| 1 | 3.3 | White |
| 2 | SDA | Blue |
| 3 | SCL Trigger | Purple |
| 4 | Humidity | Brown |
| 5 | GND | Black |
Dust sensor Port
40cm Wires
| Pin | Function | Gary Pin | fio pin | wire |
|---|---|---|---|---|
| 1 | LED Power | unused | ||
| 2 | GND | unused | ||
| 3 | LED Trigger | L | D11 | Blue |
| 4 | GND | - | bus | Black |
| 5 | Analog | D | A6 | Brown |
| 6 | +5v | + | VCC | Purple |
Humidity
on the external breakout board hanging down under the box
Solder Jumpers
- LCH
- I2C Clock voltage level
- Options
- L
- 3.3v
- H
- High voltage, 12v in this design
- HDL
- I2C Data line level
- Options
- L
- 3.3v
- H
- High voltage, 12v in this design
Configure Xbee Modules
Use the X-ctu xbee configuratino utility from Digi (Install file in Dropbox WhiteStarSharedFiles\Code\internalsensorboard\Sources\XBeeTempSensor\X-ctu Configurations) Load the following configuration files.
- Unordered List Item- Top Xbee Endpoint : endpoint xbee-30sec.pro or endpoint xbee-60sec.pro for 30 or 60 sec readings respectively
- Unordered List Item- Bottom Xbee Coordinator : coordinator-xbee.pro
