Comments on: NodeMCU V3 ESP8266 Pinout and Configuration https://cyberblogspot.com/nodemcu-v3-esp8266-pinout-and-configuration/ Not just another blogspot site Tue, 04 Jan 2022 13:44:27 +0000 hourly 1 https://wordpress.org/?v=6.8.3 By: Kevin Hyman https://cyberblogspot.com/nodemcu-v3-esp8266-pinout-and-configuration/#comment-7261 Tue, 04 Jan 2022 13:44:27 +0000 http://www.cyberblogspot.com/?p=2719#comment-7261 IN your code sample, you define Pin2 as RX / D9, then set it as an Output.

BUT in your table you say that RX may be used as an Input, and TX should be Output.

I know 8266 pin usage is confusing, but you seem to be adding to it

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