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  1. CAI_Support

    Etekcity to replace X10?

    We want to hear from users about replacing X10 support features with Etekcity RF remote feature? It seems through a low cost RF433 module, we could add support for that to replace X10 RF support.  We want to hear users feedback to decide.
  2. CAI_Support

    testing firmware for current shipping WC8 board

    This new version has two changes, first is to allow up to 10 WEBSET calls instead of 8.  second change is to allow user to set UROMx value in PLC code up to 10 times per calendar day.  You can download that and let us know your feedback and bug report.   For wc8 hardware rev 2.3.x board, this...
  3. CAI_Support

    DS2438 sensor support

    We are releasing this new firmware for hw rev 2.2.2 board to add support for DS2438 sensor.  Once DS2438 sensor is attached to the 1-wire bus and configured through temp sensor configuration screen, it will have voltage and current reading stored in AIP5,6,7,8 for up to two DS2438 sensors. For...
  4. CAI_Support

    relative humidity, dewpoint and standard humidity

    We are in the process of testing the support for DS2438 smart battery sensor.  That sensor has temperature, voltage and current sensors, three functions in one.  From users told us, many use that chip to measure humidity sensor output voltage, like sensor output from HIH4000.   Our question is...
  5. CAI_Support

    Latest firmware release for WC32

    We have released a updated version firmware for WC32. In this version, the change is to allow user to configure DS1307 present. In that way, users without WC32IO do not need to add pull-up resistor to their board.  There is no other change to previous firmware.   For wc32 board only, download...
  6. CAI_Support

    Lastest firmware download for WC8 and WC32

    If your board having older firmware, you can download these latest firmware and update your board.   For wc32 board only, download from this link: http://www.cainetworks.com/support/download/wc32update040211.zip For wc8 hardware rev 2.2.2 board, please update with this firmware...
  7. CAI_Support

    IPx[yyyy] and IPINVx[yyyy]

    Sometimes, user has need to delay an action after a switch is flipped.  In one recent support case, a customer wants a motor reacting to a switch connected to a TTL input, so that when switch is turned to on, the motor turns on after two seconds, then after switch is turned off, the motor will...
  8. CAI_Support

    DSTON to check and set DSTON to 0

    We had this DSTON feature since few years ago. Hope anyone depends on clock will have DSTON set to 0 tomorrow morning. Following code will automatically turn off DST for USA daylight saving ending tomorrow morning. START # your other logic # .... TSTEQ CDW 1 # Sunday, first day...
  9. CAI_Support

    WC32 firmware 4.02.10 released, string table bug fixed

    We just released a newer version WC32 firmware v04.02.10.   for wc32 board, download from this link: http://www.cainetworks.com/support/download/wc32update040209.zip   This version fixed a string table bug, which caused string table not indexed correctly.   Last version v04.02.09 added PING...
  10. CAI_Support

    I2C 12 bit DAC MCP4725 support on WC8 and WC32

    We noticed there are low cost I2C ADC module on the market based on MCP4725 chip.  We like to provide some example PLC code for controlling this DAC chip, so that through PLC program the MCP4725 chip module, WebControl can send out analog output.    
  11. CAI_Support

    WC32 PLC now supports PING function checking ICMPv4

    The ping function in new 04.02.09 firmware will reference to the Access Limit first 1-4 enter to ping the host. Then the rest PLC code can reference the PING return value to do any task you like.  This feature is in the new 04.02.09 firmware.  Download link is below:   for wc32 board, this is...
  12. CAI_Support

    I2C DAC analog output MCP4725 with WebControl

    There is a DAC chip module based on Microchip MCP4725 chip.  All WebControl WC8 and WC32 boards can use that chip to send out analog output.  Its output has 12bit resolution to provide voltage reference.  Through a RC filter and comparator IC to drive external analog devices.  It can be...
  13. CAI_Support

    I2C 16bit ADC expansion for WC8

    This little ADC board is based on TI ADS1115, it has an I2C interface talking to Webcontrol I2C interface and four 16 bit analog channels. We will provide detailed programming help in this thread.    http://www.ebay.com/itm/361338787943 datasheet from TI is here...
  14. CAI_Support

    Any interest for a WC8 firmware for PWS?

    It seems not too hard for us to modify the standard PLC firmware to be a Weather Underground personal weather station, to report temperature, humidity, UV rate, barometer, etc with connected optional sensors.  If there are enough interest, we could make a special firmware letting users to do...
  15. CAI_Support

    New WebControl 8 board tolerates 70C use 5-40VDC supply

    From today, we officially ship hardware rev 2.3.x WC8 board with 3.3.19 firmware. This board has been tested in temperature chamber for 70C operation, it can tolerate up to 85C during 5 minutes bake testing. The new WC8 board has switcher IC to take from 5 to 40V DC power supply.  40VDC is...
  16. CAI_Support

    Reduce humidity sensor fluctuation

    Some HIH4000 humidity sensors are very stable with its readings, however, some others may not that stable. The reason is the output from HIH4000 may have tiny spikes. One way to fix that is to add a 100nF capacitor on top R13 resistor, so that it can filter out all the fluctuation.   R13 is next...
  17. CAI_Support

    Reading K type thermo couple on SPI bus

    Both WC8 and WC32 latest firmware supporting SPI bus.  There are low cost K-type thermo couple can be purchased like this one: http://www.ebay.com/itm/151324177617 Using this sample PLC code, you can read K-type thermocouple      START SET OP1 0 # max6675 chip enable SPIBYTE 0 0...
  18. CAI_Support

    WC8 PLC 3.02.19 firmware

    Based on RossW request, we added EMAILQ command to the WC8 PLC operand, its value reflects how many emails being queued in the RAM. If you do not want to lose any earlier email, when EMAILQ greater than 2 on WC8 board, you may want to hold back sending email.   firmware download link is here...
  19. CAI_Support

    Module K temp probe on SPI bus

    Have anyone used this temp sensor probe on the SPI bus?   http://www.ebay.com/itm/400798924042 It will need to use SPIBYTE PLC command twice to read in two bytes, then put together and shift to the right. It claims to read from -200 to +1300C.  But in our tests, it is slow to respond to...
  20. CAI_Support

    daylight saving over, did your PLC work correctly?

    We had in the past discussed DST function.  Don't know if new users see that discussion in the past. If your logic is based on hour of the day, it would be nice to have DST consideration in the code.     http://cocoontech.com/forums/topic/24147-dst/page-2    
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