Is harware serial library in esp329/25/2023 You just have to paste below URL into this box if the box contains already another URL then paste it by separating another URL using comma(,). Step 3: This box maybe empty or contain some other URL if you have used it previously for ESP8266. Step 2: After installing, open IDE and go to Files -> Preferences and open preference window and see the “Additional Boards Manager URL’s” as: If you have already installed in your PC then make sure that it is latest version of IDE as older version doesn’t include ESP32 board. Step 1: Firstly you have to download and install Arduino IDE software which you can download from for free. You can use any IoT device to send data to ThingSpeak like previously we used Raspberry Pi to connect with ThingSpeak cloud. ThingSpeak is a free web service for displaying the data online and you can access and monitor the data from ThingSpeak from anywhere.
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