Getting Started with example code: Connection to ThingSpeak failed | Arduino | Forum
Log In
Register
Home
Topic RSS
1:42 am
May 30, 2012
Offline
Hello,
I'm using the sample code from https://github.com/iobridge/ThingSpeak-Arduino-Examples/blob/master/Ethernet/Arduino_to_ThingSpeak.ino
The only thing I am modifying are my generated mac address and writeAPIkey which I got from the site after creating a device and channel.
The device is connected to my network, but not thingspeak. This is what my serial port spits out:
Connecting Arduino to network... Arduino connected to network using DHCP Connection to ThingSpeak failed (1)
using Arduino Uno, Ethernet shield, and 1.0.1 IDE
Any Ideas?
Thanks.
12:38 pm
January 18, 2011
Offline
We have not tested Arduino 1.0.1 IDE … there may be differences. I wrote the examples with Arduino 1.0 -- I really hope it is not that different. I am checking into it.
12:53 pm
January 18, 2011
Offline
So, it is NOT the new Arduino IDE.
I just downloaded 1.0.1, copy and pasted the ThingSpeak Client Code from GitHub, and added my writeAPIKey… and everything worked right away.
Output from Serial Monitor:
Connecting Arduino to network...
Arduino connected to network using DHCP
Connecting to ThingSpeak... HTTP/1.1 200 OK Server: nginx/0.8.53 Date: Sat, 02 Jun 2012 17:50:51 GMT Content-Type: text/html; charset=utf-8 Transfer-Encoding: chunked Connection: close Vary: Accept-Encoding Status: 200 ETag: "9fb4651c05b2ed70fba5afe0b039a550" Cache-Control: max-age=0, private, must-revalidate 4 6428 0 ...disconnected
---
My guess now is that your home network is not giving the Arduino an IP address. I think you are looking at a networking issue or DHCP issue on the Arduino Library.
12:55 pm
January 18, 2011
Offline
Also, when you generate a MAC address, did you create a Globally Unique MAC Address? It's worth changing to a global MAC.
10:23 am
June 3, 2012
Offline
I'm not able to connect either:
Arduino 1.0.1, I have created a unique MAC address device, and have entered the API key
I am getting an IP Address…BUT connection is failing.
Connecting Arduino to network... Arduino connected to network using DHCP 192.168.0.12 Connection to ThingSpeak failed (1) Connection to ThingSpeak failed (2) Connection to ThingSpeak failed (3) Connection to ThingSpeak failed (4)
question...when creating the device in ThingSpeak...
do I need to enter a public IP address,
public port number and local IP address stuff?
10:39 am
January 18, 2011
Offline
Can you send me the MAC Address that you generated? And, the line in your arduino sketch that shows the MAC address? What OS are you running Arduino 1.0.1 on?
Also, the other field are optional. We only use them to generate the Arduino sketch for updating Twitter automatically.
10:42 am
June 3, 2012
Offline
D4-28-B2-FF-BC-72
byte mac[] = { 0xD4, 0x28, 0xB2, 0xFF, 0xBC, 0x72 }; // Must be unique on local network
I'm running Mac OS X (version 10.7.2)
9:30 pm
January 18, 2011
Offline
I copied your MAC line directly into my sketch and the Arduino is posting.
It looks like DHCP or Arduino's version of DHCP is not working on your network. I suggest trying the "DhcpAddressPrinter" sketch that is included in the examples. Let's see if that works or not, so we can narrow this down.
Most Users Ever Online: 38
Currently Online: Malden
6 Guest(s)
Currently Browsing this Page:
1 Guest(s)
Top Posters:
JChristensen: 26
vespapierre: 21
CorBee: 18
bgardner: 12
harrisandrew73: 10
Eng_michel: 10
Member Stats:
Guest Posters: 0
Members: 3499
Moderators: 0
Admins: 3
Forum Stats:
Groups: 4
Forums: 15
Topics: 180
Posts: 588
Newest Members: peterpan666, Malden, oleronas, lirtwelljero, swomensboots, turgo
Administrators: Hans (167), lee (41), akinsgre (9)
