Search found 29 matches

by Jonas
Sun Mar 01, 2015 11:12 pm
Forum: General Discussion and Questions
Topic: ExtInt problems
Replies: 19
Views: 9681

ExtInt problems

Hi, I'm playing a bit with interupts. Sometimes this code works but most times I get errors. Either it is 'vector is in use', or 'callback is not defined'. If I run some other code and then change back to this it work one time, then the errors. I have tried both soft and hard reset. I'm just learnin...
by Jonas
Mon Feb 23, 2015 12:08 am
Forum: Hardware Projects
Topic: Timer for car heater
Replies: 4
Views: 3516

Re: Timer for car heater

Great idea! I already have a bunch of those remote control devices. I might use the remote wallswitch making the pyboard pull the button pins high or low. I'm trying to read the DS18s20 sensor using this approach: http://www.maximintegrated.com/en/app-notes/index.mvp/id/214 So far I have been able t...
by Jonas
Sun Feb 15, 2015 12:42 pm
Forum: Drivers for External Components
Topic: 1wire devices
Replies: 16
Views: 11691

Re: 1wire devices

Has anyone tried to connect to 1-wire from uart?

http://www.maximintegrated.com/en/app-n ... mvp/id/214
by Jonas
Sun Feb 08, 2015 8:55 am
Forum: Hardware Projects
Topic: Timer for car heater
Replies: 4
Views: 3516

Timer for car heater

In the winter, when below and around zero degrees, I have a heater for my car connected to a timer. It heats the engine a bit to reduce wear and fuel consumption, but the main thing is the heater fan inside the car that gives me a varm and defrosted car when I'm going to work in the morning. I want ...
by Jonas
Sun Feb 01, 2015 9:14 pm
Forum: Announcements and News
Topic: UPDATED: New users post approval
Replies: 33
Views: 37703

Re: New users post approval

Well, are you ready to provide such "quick answers" on this forum yourself? Of course not, I'm quite new to this so I will mostly ask questions, but I do hope to contribute somehow, someday :) I just got really frustrated when I got stuck, but you are right, it gave me an extra chance to solve the ...
by Jonas
Sat Jan 31, 2015 9:29 pm
Forum: Announcements and News
Topic: UPDATED: New users post approval
Replies: 33
Views: 37703

Re: New users post approval

Thats great! Then this should show up right away then.

It should be recommended for new memebers to post two posts here right after they register, showing that they are not bots, so they dont have to wait untill they have urgent questions.

Hugs
by Jonas
Sat Jan 31, 2015 7:31 pm
Forum: Announcements and News
Topic: UPDATED: New users post approval
Replies: 33
Views: 37703

Re: New users post approval

It's really annoying having to wait a whole day just to get your post approved. That takes away the chance of a quick answer to your questions or opinions. I think people will hesitate to post here just because of that, and move or slow down the spread of micro python and pyboard info. Is there no o...
by Jonas
Fri Jan 30, 2015 11:01 pm
Forum: MicroPython pyboard
Topic: Reaching 3.3 volt?
Replies: 4
Views: 2497

Re: Reaching 3.3 volt?

I solved it. I just assumed that the MIC2005A was a 5 volt regulator for the usb port :oops: The problem seems to be that the potentiometer on the joystick dont change its resistance the last few mm's before the end stop. Don't know how to fix that... I tried with a normal 10K pot and it worked fine...
by Jonas
Fri Jan 30, 2015 1:03 pm
Forum: MicroPython pyboard
Topic: Reaching 3.3 volt?
Replies: 4
Views: 2497

Reaching 3.3 volt?

I'm having trouble reaching 3.3 volt with the adafruit thumb joystick. I can only get about 2.5 volts to the adc pin. I'm thinking of connecting it to 5 volts instead and scale it down with a resistor to reach 3.3 volt at full stroke of the joystick. I can't find any 5 volt pin so I'm thinking of ma...