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HTTP GET request needs to end with an empty line and HTTP 1.1 requires a Host header. Add an empty line and eiher change the HTTP version to 1.0 client.print("GET /channels/421932/feeds.json?api_key="); client.print(apiKey); client.println("&results=2 HTTP/1.0"); client.println(); // empty line or add the Host header client.print("GET /channels/...


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