REXYGEN Community Forum / Connecting sensors and actuators

REXYGEN Forum has been moved. This one is closed.

2019-03-20T13:39:19Z

This REXYGEN Forum is closed for new topics and comments.
To start a new topic, go ahead and start one at our brand new REXYGEN Forum, which can be found at forum.rexygen.com.

Looking forward to moderating your discussions.

Regards,
Tomas @ REXYGEN Team

Reading a DHT11 sensor

2017-03-15T08:38:21Z

Hi Darren,

DHT sensors should work with Raspberry Pi. Try to contact Adafruit and explain them your issue. The problem is not on REX side since you are not able to run the external Python script.

Did you try to reinstall the library? Did you follow the installation guides here: https://github.com/adafruit/Adafruit_Python_DHT?
Did you also run the DHT library setup command?

sudo python setup.py install

Regards, Tomas

Reading ADS1115

2016-11-15T16:29:27Z

Hi Fred,

we will check the update of all examples from previous version and update it on our GitHub - thank you for your comment.

Cheers, Tomas

Thermocouple temperature readings

2016-07-25T13:32:34Z

You would need an amplifier again, e.g. like this one: http://www.ebay.com/itm/Quad-Channel-J- … 1438662460 Should work almost out of the box.

But it involves 2x A/D conversion, which is uneffective, so it's better to use e.g. this one: http://www.playingwithfusion.com/produc … hp?pdid=31 which you can connect directly to the RPi via SPI (when UniPi is not present) or to the Arduino via SPI and then via USB to RPi (when UniPi occupies the pins of the Raspberry Pi). In both cases a bit of hand-coding will be necessary.

problum whit the 8-Relay Addon EMO-R8

2016-07-06T10:11:08Z

Hi Martijn,
in this case it's necessary to contact the UniPi guys, who are the developers of the hardware. I can see you already did that in the UniPi forum. I'll let them know that you are our customer.

Jaroslav

problem with 1-wire sensors and sensors connected by SILO

2016-03-19T06:49:21Z

Thanks for reporting this. Is there any error displayed at the outputs of the SILO blocks? Did you check the contents of the input files? Is it changing? Can you change the value in the input file manually? I'm just trying to locate the problem...

As for the errors of the 1-Wire I/O driver, there is nothing to worry about. The 1-Wire bus is by design not reliable, therefore some communication errors do occur. The log messages are confusing, I agree. This I/O driver is in the hands of our developers at the moment and the system log messages are one of the improvements.