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  • Vrettel commented on JayconSystems's instructable ESP8266 as a Microcontroller3 months ago
    ESP8266 as a Microcontroller

    I found out that the board doesn't erases it's memory but just fails to load the sketch. I have all the pins you said disconnected before I power down. The only solution I found is to disconnect both I/O pins and restart the board. Only then I manage to get the sketch working. Tried it in 3 different esp8266 e01 boards and had exactly the same results. Thanks for your answer !George

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  • Vrettel commented on JayconSystems's instructable ESP8266 as a Microcontroller4 months ago
    ESP8266 as a Microcontroller

    Hello, first of all very nice instructable. I followed it and it works perfect. There is only one problem. For some reason, when i restart the ESP8266, the sketch is being erased from ESP. I think that every time there is a power loss, on reconnection ESP8266 erases it's memory or flashes again the. The only way to keep the sketch in memory, is to disconnect the GPIO0 pin (which is grounded for the Upload process) and also disconnect the ledpin! Only by disconnecting both of the GPIO pins, the program can keep the sketch in memory. Thing is that i need the ledpin connected all the time to control my device. Have you found a solution on this problem? Thanks in advance, George

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  • Vrettel commented on JayconSystems's instructable ESP8266 as a Microcontroller4 months ago
    ESP8266 as a Microcontroller

    The method JayconSystems suggests, works fine. To upload to the board without these error messages do the following:1) Upload an empty project(i.e. BareMinimum from the examples) to the arduino uno board (not the ESP).2) Wire everything correct according to this instructable.3) Ground the GPIO0 pin of the ESP.4) Prepare the sketch to be uploaded to the ESP.5) Select the Generic ESP8266 Module from the board list6) Press Upload and before the upload starts connect the RST pin of the ESP to Ground. Disconnect immediately and let the process continue. If the errors appear, try again with a better timing. Don't forget, during the upload only the GPIO0 pin must be connected. After the upload you can connect the other GPIO too.Sorry for the spam, not sure if the timing i described is the only...see more »The method JayconSystems suggests, works fine. To upload to the board without these error messages do the following:1) Upload an empty project(i.e. BareMinimum from the examples) to the arduino uno board (not the ESP).2) Wire everything correct according to this instructable.3) Ground the GPIO0 pin of the ESP.4) Prepare the sketch to be uploaded to the ESP.5) Select the Generic ESP8266 Module from the board list6) Press Upload and before the upload starts connect the RST pin of the ESP to Ground. Disconnect immediately and let the process continue. If the errors appear, try again with a better timing. Don't forget, during the upload only the GPIO0 pin must be connected. After the upload you can connect the other GPIO too.Sorry for the spam, not sure if the timing i described is the only correct one.

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