Spurious points in ThingSpeak chart? | ThingSpeak API | Forum

Avatar

Please consider registering
Guest

sp_LogInOut Log In sp_Registration Register

Register | Lost password?
Advanced Search

— Forum Scope —






— Match —





— Forum Options —





Minimum search word length is 3 characters - maximum search word length is 84 characters

sp_Feed sp_TopicIcon
Spurious points in ThingSpeak chart?
No permission to create posts
December 26, 2011
3:35 am
Avatar
mcmahongg
Ireland
New Member
Members
Forum Posts: 3
Member Since:
December 4, 2011
sp_UserOfflineSmall Offline

I got two spurious points on my ThingSpeak charts at:

02.45 (GMT +0000) and 02.55 on 25 Dec.

[Channel 1384]

The readings are initiated by a cron script at ten minute intervals – XX.00, XX.10 etc so there shouldn't be readings at the two times above.

The ThingSpeak channel log doesn't show readings for these times, but they appear in the chart where the chart goes to zero at these locations.

Something similar happened on the previous day but otherwise the setup has been running without problems.

Thanks for any ideas. Maybe Santa effect Wink

 

Gerry

December 27, 2011
1:44 am
Avatar
Hans
Natick, MA

Admin
Forum Posts: 411
Member Since:
January 18, 2011
sp_UserOfflineSmall Offline

Gerry,

Not sure what would cause that on our end.

Is your CRON job posting to the ThingSpeak API?

December 27, 2011
4:07 am
Avatar
mcmahongg
Ireland
New Member
Members
Forum Posts: 3
Member Since:
December 4, 2011
sp_UserOfflineSmall Offline

Yes - the cron job runs a PHP script every ten minutes reading the data from the sensor module and posting it to thingspeak.com.

thanks 

Gerry

Forum Timezone: America/New_York

Most Users Ever Online: 166

Currently Online:
19 Guest(s)

Currently Browsing this Page:
1 Guest(s)

Top Posters:

rw950431: 272

Vinod: 240

piajola: 95

turgo: 70

vespapierre: 63

Adarsh_Murthy: 62

Member Stats:

Guest Posters: 1

Members: 8665

Moderators: 1

Admins: 2

Forum Stats:

Groups: 3

Forums: 14

Topics: 1600

Posts: 5760

Newest Members:

qkpham, SANGAMNATH B, swatiiot, kalyanigaware16@gmail.com, Romi, Drakan01

Moderators: cstapels: 460

Administrators: Hans: 405, lee: 457