![esp32 thing fritzing esp32 thing fritzing](https://www.robotgear.com.au/Cache/Files/ProductImageOriginals/25493_SparkFun_ESP32_Thing_2.jpg)
Open the session and type the following: GET /update?api_key=0F1D2F1QQUL2OHKH&field1=2.8 HTTP/1.0 Open Putty, select Raw connection type and use for Host Name and 80 for Port: But before that, we must know the correct HTTP request. We need to create HTTP requests via GPRS. Of course, we will not be using a browser to update the channel on ThingSpeak. When I go see the Private View tab, the chart has now been updated: You can paste the url above on your browser and change the last number. The last value on the url is the value to be sent to the channel. This is the url used to update data on the channel. Copy the URL for “Update a Channel Feed”. On the lower right, you have the API requests fields. Once the channel is created, go to the API keys tab: Here I only have one field named Atmospheric Pressure. Here is a screenshot of the channel I created:
![esp32 thing fritzing esp32 thing fritzing](https://cdn.sparkfun.com/assets/parts/1/2/8/9/4/14689-SparkFun_Thing_Plus_-_ESP32_WROOM-04.jpg)
After successfully signing-up, you will be prompted to create a channel.
![esp32 thing fritzing esp32 thing fritzing](http://www.mindkits.co.nz/SHARED/images/products/sparkfun/13711-01.jpg)
First, you need to sign-up for a free account on ThingSpeak.