before I installed my ttgo pin board it could be used normally. However, when I pinned it, the upload was successful but nothing appeared. after pressing reset the output appears. how to solve it?
This is a forum for the Nano ESP32, do you have one ?
Please take a moment and read the forum guidelines: How to get the best out of this forum then explain how this involved which Arduino, a Simple schematic would help.
I moved your topic to a more appropriate forum category @takagisan.
The Nano ESP32 category you chose is only used for discussions directly related to the Arduino Nano ESP32 board.
In the future, please take the time to pick the forum category that best suits the subject of your question. There is an "About the _____ category" topic at the top of each category that explains its purpose.
Thanks in advance for your cooperation.
Hi @takagisan. The output shown in your screenshot:
occurs when pin GPIO0 (I believe this is the pin marked "0" on the board) is connected to ground. You should do a careful visual examination of your board to check if there are any short circuits or conductive debris. Make sure the board is not sitting on a conductive surface or touching conductive objects. Carefully review any external circuitry, wiring, shields, modules you have connected to the board.
I'm not sure I understood correctly what you mean by "pinned it". Please add a forum reply here that provides a more detailed description to help me to understand it.
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