Particle TCPClient Library Removed from Particle Build?

Firmware Libraries
1

I don’t see TCPClient in the library listings anymore. Has it been pulled? I am looking to create a minimal Photon/Core Client program to read data from an in-house wifi connected temperature server. Thanks.

2

Hi @mwman73

TCPClient is “built-in” in the Particle so no separate library is required.

3

Thanks bko, I thought that I remembered seeing a TCPClient example in the library section. Maybe I am getting senile.

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4

There are several HTTP client libraries–maybe that is what you wanted?

5

Bko, I am new to programming, so forgive my ignorance. I want to used a Photon or Core as a data collector. I want to have several wifi connected “server” processors (at fixed ip addresses) located a various locations in my home sending data (temperature, etc) to the Photon/Core data collector. I want to be able to access the Photon/Core data collections from anywhere I travel. I am looking for the minimal code example that will get me started. I looked at the HTTPClient. Can I substitute ip addresses for the host name? Thanks again for your help.

6

Hi @mwman73

I am not sure I fully follow your setup: it would be more usual for a Photon to be connected to some sensors for say temperature and pressure–then you could use the Particle Cloud to post data and subscribe to that data on a PC/Mac/Linux box or another Photon. Using web hooks you can also send your data to other services on the web including say a Google Docs spreadsheet. Your use-case seems to be the other way round, but I guess that could work too.

As to HTTPClient, you should use IPAddress(192,168,0,2) and not "192.168.0.2" which won’t work. Check out the example in the HTTPClient library for more details.

7

OK bko, thanks for your help. I’ll take a look a closer look at the HTTPClient library.

8

The httpclient works without fault if you disconnect from the cloud and send your data to a little linux server like the pi

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9

Thanks Peter and bko for steering me in the the right direction. I was able to modify the httpclient example to get my Photon to receive data from an ESP8266 server connected to my network. I used SYSTEM MODE(SEMI-AUTOMATIC).