Go to advanced search

by mutley
Wed Mar 23, 2016 5:05 pm
Forum: General discussion
Topic: Can I use a zero to control a fan temp
Replies: 13
Views: 2499

Re: Can I use a zero to control a fan temp

As said above, Temp censor is easy. Control fan on/off is also easy. But controlling a fan speed by changing the power delivered to the fan is difficult/expensive on the PI, you may be better off reading about PWM and looking at the Arduino. But if the fan has a 2 speed switch (and not a potentiomet...
by mutley
Tue Mar 22, 2016 10:31 pm
Forum: General discussion
Topic: Protractor Sensor
Replies: 4
Views: 1185

Re: Protractor Sensor

What you are talking about it a hall effect censor used to measure rotation or angle, simply putting that in google will come up with many different ways you can use it to achieve your result you want. It's very simple and cheap to measure once every 360deg, it gets more complicated and expensive th...
by mutley
Tue Mar 01, 2016 3:14 pm
Forum: General discussion
Topic: Best WIFI Dongle
Replies: 15
Views: 23995

Re: Best WIFI Dongle

EDI Max AC600 is what I would recommend as the best I have tested so far. Super fast, very reliable and very little packet loss. It supports both 5 and 2.4 Ghz on the Pi and uses the 8812au chipset. On 5Ghz it gives me better performance than the built in SMSC95xx Ethernet adapter on a Pi 2. http://...
by mutley
Fri Feb 26, 2016 3:39 pm
Forum: Interfacing (DSI, CSI, I2C, etc.)
Topic: i2c help - Adafruit SHT31-D Temperature & Humidity sensor
Replies: 0
Views: 1556

i2c help - Adafruit SHT31-D Temperature & Humidity sensor

I've managed to get the i2c Adafruit SHT31-D temperature & humidity sensor working on the PI, but for some reason every time I turn the heater on, the next command passed over i2c fails and an alert is set on the sensor. Everything else seems to work ok, (reading temp & humidity, reading serial, cle...
by mutley
Thu Feb 25, 2016 11:42 pm
Forum: General discussion
Topic: Help wiring/diagnosing a sensor. What went wrong?
Replies: 2
Views: 662

Re: Help wiring/diagnosing a sensor. What went wrong?

Did you install anything / change the system in any way when testing the other sensors? I assume they were I2C since you unplugged the LiDAR. Since the LiDAR is returning it's address with i2cdetect I would doubt it's that. It's would seem more lightly that you changed something on the system that w...
by mutley
Thu Feb 11, 2016 5:17 am
Forum: General discussion
Topic: Pi Zero USB hub
Replies: 96
Views: 82092

Re: Pi Zero USB hub

I'm not sure on the correct terminology, but you need an active hub or a hub with it's own IC controller, powered vs non-powered is irreverent. Some USB hubs simple duplicate the signal basically giving the upstream USB controller more ports. Others add a USB controller IC, ie actually register as a...
by mutley
Fri Feb 05, 2016 4:01 pm
Forum: General discussion
Topic: USB boot stick creator for Raspian Wheezy
Replies: 7
Views: 2282

Re: USB boot stick creator for Raspian Wheezy

Sounds like what you might want is Debian Wheezy (there is a USB version) https://www.debian.org/releases/wheezy/debian-installer/ Raspian Wheezy is very specific to the PI architecture, it's hard / painful to even get it running on something other than a PI let alone a generic boot device. First po...
by mutley
Fri Feb 05, 2016 3:11 pm
Forum: General discussion
Topic: USB boot stick creator for Raspian Wheezy
Replies: 7
Views: 2282

Re: USB boot stick creator for Raspian Wheezy

No. To my knowledge you can't boot directly off USB on the PI. The best you can do is have the second stage bootloader on a CF card (as normal), then once loaded tell it to boot the OS off USB, rather than CF as normal. That way you can use tools as you described to crate a USB stick that you can bo...
by mutley
Fri Feb 05, 2016 2:54 pm
Forum: Networking and servers
Topic: Configuring RPi2 as proxy or router port forwarder?
Replies: 4
Views: 2115

Re: Configuring RPi2 as proxy or router port forwarder?

Yes that can be done. There is no need to setup port forwarding though unless you want to run the PI as a firewall / hide each network from each other. If they are both trusted networks, look at the command "ip route", and the pi can forward all traffic for a particular IP rather than specific port ...
by mutley
Thu Feb 04, 2016 11:06 pm
Forum: General discussion
Topic: How to deal with the "logs filling up space" problem?
Replies: 19
Views: 31963

Re: How to deal with the "logs filling up space" problem?

I personally think your best bet is, as you said to mount /var/log to another partition, the last thing you want is a ton of junk writes going to the CF card if you want long term stability. I found a ram disk to be the best option for this on the PI. Just add something like this to /etc/fstab tmpfs...
by mutley
Sat Jan 02, 2016 8:16 pm
Forum: Networking and servers
Topic: Socket and Timestamping
Replies: 1
Views: 371

Re: Socket and Timestamping

You should probably post this in one of the programming language sections, along with what type of socket connection you are trying to use. Without knowing the language, socket/protocol type and any socket abstraction layer you may be using, it's impossible to answer. But as a quick kind-a useless a...

Go to advanced search