Nuts and Volts - January 2016

40 January 2016

(Nuts&Volts_xBee.xml) available at the article link, and save it to your local hard drive. Using the XC TU software, load the configuration file from your local hard drive and write it to your XBee. (Refer to Figures 4, 5, and 6.) This configuration file sets the parameters shown in Table 4.

Once this step is complete, your radio is programmed to join any ZigBee HA network; you won’t have to do this again. As soon as you reset your radio, it will start looking for an open ZigBee HA network to join. To allow it to join the network, you will need to tell Smart Things to open the network and allow a new device to join. (More on this later. For now, you can unplug your radio and move on to the next step.)

Step 2) Build Your Circuit.

The sample code outlined in the next step is designed to work with the schematic in Figure 7. If you’re building your own circuit, you don’t have to worry about connecting your XBee, LED, and pushbutton to the same pin numbers shown here. We can configure that in the code.

Please note, we connect the Propeller to the XBee with five pins: Dout, Din, Reset, CTS, and RTS. We need all five pins as we are going to implement hardware handshaking to the XBee. If we had to, we could get by without the XBee’s “reset” pin, but without it you may find yourself power cycling your circuit from time to time.

On pin 12 of the Propeller Mini, we connect an LED and a 220 ohm current-limiting resistor. This is the LED we will control with SmartThings.

On pin 13 of the Propeller Mini, we connect a 10K ohm pull-up resistor and pushbutton to ground. This button will also be

Smart Things awarded the CoopBoss Best in Show for their “Show Us Your Smart Things” contest. Check it out at http://blog.smartthings.com/stories/a-smart-chicken-coop.

Parallax features the technology used by the CoopBoss on their “learn website” at http://learn.parallax.com/ inspiration/coop-boss.

The CoopBoss is an open source project. More information is available at CoopBoss.com. This fall, you will be able to order a complete CoopBoss system from DoodleDooCoops.com.

CoopBoss ZigBee Configuration.

The following is a list of the endpoints and clusters used by the CoopBoss.

ZigBee End Points

0x38 Input Cluster 0x0000 Basic Cluster Output Cluster 0x0101 Door Lock Cluster Output Cluster 0x0402 Temperature Cluster (Temperature of XBee radio) 0x39 Input Cluster None N/A Output Cluster 0x0402 Temperature Cluster (Coop Probe 1) 0x40 Input Cluster None N/A Output Cluster 0x0402 Temperature Cluster (Coop Probe 2)

ZigBee Cluster 0x0101 commands

$00 Close Door

$01 Open Door

$03 Toggle Door Lock $04 High Current Door Close

ZigBee Custom Commands for Cluster 0x0101

$0A Enable Auto Close Door

$0B Disable Auto Close Door

$0C Enable Auto Open Door

$0D Disable Auto Open Door

$0E Set Close Light Level to Current Level

$0F Set Open Light Level to Current Level

$10 Set Close Light Level (to Long Value)

$11 Set Open Light Level (to Long Value)

$12 Set Auto Close and Open Light Levels back to factory

$13 Set Normal Door Close Current to value of Last Door Close Current

ZigBee Cluster 0x0101 Attributes

$0000 Read LockState; see page 344 of ZCL, type 0x30 $30 = eight-bit enumeration $0001 Read Lock Type; see page 344 of ZCL, type 0x30

$0002 ActuatorEnabled; see page 344 of ZCL, type 0x10

$0003 Read DoorState; see page 344 of ZCL, type 0x30, Reportable ZigBee Custom Attributes

$0400 Custom Attribute for Current Light RC Time value, type 0x23 $0401 RC Time value that will trigger a door close, type 0x23 $0402 RC Time value that will trigger a door open, type 0x23 $0403 Read Auto Door Close Setting 0=Disabled, 1=Enabled, type 0x10 $0404 Read Auto Door Open Setting 0=Disabled, 1=Enabled, type 0x10 $0405 Current of last door close