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by berkinet
Sun Mar 03, 2019 9:07 am
Forum: Python
Topic: Multiple attempts required to open VINT device
Replies: 2
Views: 6460

Multiple attempts required to open VINT device

I am using code based mostly on the VoltageRatio example. But, adapted for the DAQ1500 and a 3133 load cell connected to a HUB0000. In general the code works. However, If I kill the code (I just added a wait for a Return after the open) and let the code run to the end, with a close(), I must try sev...
by berkinet
Fri Aug 24, 2018 10:33 am
Forum: General
Topic: Interface to a gate controller
Replies: 2
Views: 7687

Re: Interface to a gate controller

If anyone cares... I solved the problem in an interesting manner. The 1054 was the way to go, but apparently the relay that was switching the 1054's 5v output back to its input was not clean. I saw a continually changing range of frequencies. So, instead, I used the relay to switch ground to a Digit...
by berkinet
Sat Aug 18, 2018 1:35 pm
Forum: General
Topic: Interface to a gate controller
Replies: 2
Views: 7687

Interface to a gate controller

I have a new gate controller(GiBiDi BA230) and would like to interface it to my home automation system. The challenge of the moment is to detect the gate state. There is a controller output that provides 24vdc according to the following pattern Gate State - Voltage Closed - 0vdc Opening - 24vdc puls...
by berkinet
Thu Aug 16, 2018 11:23 am
Forum: All Other Phidgets
Topic: 1054 input question
Replies: 2
Views: 5656

Re: 1054 input question

Thanks.
by berkinet
Thu Aug 16, 2018 1:15 am
Forum: All Other Phidgets
Topic: 1054 input question
Replies: 2
Views: 5656

1054 input question

I wish to use a 1054 Frequency Counter to measure the frequency of a flashing 24vdc lamp. More accurately, the 24vcd is pulsed at either 4 or 8 Hz and I wish to measure that rate. The question is, rather than use a relay, I wanted to just use a voltage dropping resistor to get the signal below the 2...
by berkinet
Thu May 31, 2018 2:54 pm
Forum: InterfaceKits
Topic: Mod for 1127 light sensor
Replies: 4
Views: 11213

Re: Mod for 1127 light sensor

Ok. Two nice bright LEDs, plus a little shielding around the light sensor, did the trick. I now get a difference between nothing and something in the mailbox that exceeds 3 times the sensor threshold. I.e., with the threshold set at 3, I see SensorValues with nothing present of 10. But, with a small...
by berkinet
Wed May 30, 2018 11:07 am
Forum: InterfaceKits
Topic: Mod for 1127 light sensor
Replies: 4
Views: 11213

Re: Mod for 1127 light sensor

WoW. Thanks. I'll try 2 LEDs and lower the resistance a bit.
by berkinet
Wed May 30, 2018 7:25 am
Forum: InterfaceKits
Topic: Mod for 1127 light sensor
Replies: 4
Views: 11213

Mod for 1127 light sensor

I want to detect the presence of an object in a contained space (actually, a mailbox) h: 30cm x w: 30cm d: 38cm. I have tried various approaches (IR presence, IR distance, sonar distance) and all had issues. I.e. not enough clarity between a small object and no object. However, it seems to me that a...
by berkinet
Fri May 25, 2018 1:26 am
Forum: General
Topic: SBC3 loses USB devices
Replies: 2
Views: 10750

Re: SBC3 loses USB devices

The problem has become much worse. After ca failure during the night, the usb system will no longer load anything. I have removed all external usb devices and it still fails as... [ 4.641357] usb 1-1: new full-speed USB device number 2 using ci_hdrc [ 4.861222] usb 1-1: device descriptor read/64, er...
by berkinet
Wed May 23, 2018 9:00 am
Forum: General
Topic: SBC3 loses USB devices
Replies: 2
Views: 10750

SBC3 loses USB devices

Firmware Version: PhidgetSBC3 - Version 1.0.1 - Built Thu Jan 8 16:10:58 MST 2015 Kernel Version: Linux version 3.14.27 (patrick@debian) (gcc version 4.4.5 (Debian 4.4.5-8) ) #12 Thu Jan 8 15:16:14 MST 2015 Distribution: Debian GNU/Linux 7 Phidget Library: Phidget22 - Version 1.0.0 - Built May 8 20...