Problem writing to channel. HTTP error code 400

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Roger
Roger 2025-7-15
评论： Christopher Stapels 2025-7-15
Hello, I am new to ThinkSpeak so thought I would try your example code for ESP8266 -- ThinkSpeak Channel. Have spent much time making sure all is installed and seems to compile, load and run on ESP8266 Node MCU. Channel is set up and have ID and Author ID I can see the channel but nothing noted. I am getting the above return on serial monitor. Any help very gratefully recieved, please.

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