Search found 106 matches

by cef
Wed Sep 19, 2012 11:16 am
Forum: EtherMega
Topic: safe to connect USB with DC IN selected
Replies: 6
Views: 5272

Re: safe to connect USB with DC IN selected

As long as the jumper is set to 5V_PSU, you should be fine, with all of the project powered off the power supply. BTW: Note that 24V is close to the top end of the regulator on the EtherMega (28V). Always wise to check that your supply is putting out what you think it should be, before plugging stuf...
by cef
Mon Aug 27, 2012 9:52 am
Forum: Product / Device Ideas
Topic: ATMega1284P
Replies: 2
Views: 3610

Re: ATMega1284P

Would a 2560 do?

Cos you know, there's already the EtherMega.

Edit: Woops! Didn't notice that the issue might be the amount of SRAM, which is bigger on the 1284 than even the 2560. Still needs clarification if it's the SRAM size that's this persons issue, or something else.
by cef
Fri Aug 17, 2012 4:40 am
Forum: LeoStick
Topic: What is the trick to get windows 7 working with card
Replies: 31
Views: 27566

Re: What is the trick to get windows 7 working with card

FWIW: 1. I don't work for Freetronics, but I know Marc and Jon (the two people behind Freetronics), and help out with general admin stuff (like deleting spam), so they can get on with the important things. 2. Jon has been quite ill lately, and this has meant that Marc is doing double time running th...
by cef
Sun Aug 12, 2012 9:06 am
Forum: Module Discussion
Topic: Problem soldering some pads
Replies: 4
Views: 4283

Re: Problem soldering some pads

GND pads, and sometimes other pads might require a slightly higher temp, if there is usually a larger amount of track around the pad to heat up, especially in the case of ground, which can sometimes have a whole layer on the board devoted to it. Do you have a temperature adjustable iron? If so, try ...
by cef
Tue Aug 07, 2012 5:05 am
Forum: EtherTen
Topic: mounting screws don't fit on Etherten
Replies: 10
Views: 14163

Re: mounting screws don't fit on Etherten

This is a common problem with most of the Arduino boards, and not limited to the Freetronics stuff. What I've always done was use a nylon screw. With a pair of side-cutters, cut off a side (or two) of the screw head so that it fits in the gap between the headers. I then just tighten the nuts on the ...
by cef
Mon Jul 23, 2012 1:11 pm
Forum: LeoStick
Topic: A working avrdude config for LeoStick
Replies: 8
Views: 11231

Re: A working avrdude config for LeoStick

AndyA: What command line have you tried to avrdude? Specifically the -p option?
by cef
Thu Jul 12, 2012 6:21 am
Forum: EtherTen
Topic: Maximum Power a Project can draw from PoE
Replies: 5
Views: 4479

Re: Maximum Power a Project can draw from PoE

I've seen note elsewhere (by Jon) that you should get ~2 Amps out of the 802.3af switchmode regulator, but that keeping it cool might be an issue. Note that this should be at about 7.5 Volts (the voltage out of the regulator that FreeTronics supplies for using 802.3af on the EtherTen), and that unle...
by cef
Wed Jul 04, 2012 4:42 am
Forum: EtherTen
Topic: Etherten and PoE Regulator 802.3AF
Replies: 2
Views: 2845

Re: Etherten and PoE Regulator 802.3AF

Do you have a specific stepper motor in mind? The big issue will be how much current (and to a lesser extent, voltage) you need to drive the motor. it will also depend on what circuitry you're using to drive the stepper motor. I can't seem to find any details on how much current one of those 802.3af...
by cef
Thu Jun 21, 2012 10:18 pm
Forum: LCDK: LCD & Keypad Shield
Topic: LCD Menu
Replies: 4
Views: 7082

Re: LCD Menu

The post that ninja2 referred to above has been deleted.

Note: If you see spam, please hit the button to report it and we'll get to it as soon as possible. Posting replies only leads to this situation after the post is deleted.
by cef
Sun Jun 17, 2012 9:46 am
Forum: EtherMega
Topic: MQTT and EtherMega / EtherTen
Replies: 2
Views: 3291

Re: MQTT and EtherMega / EtherTen

There should be no problem in essence with the MQTT library working on the EtherTen or EtherMega boards. AFAIK Jon Oxer (one of the FreeTronics guys) is using MQTT as part of his home automation project. He may however not be using this library, so might be worth waiting on a reply from him on what ...