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SasaKaranovic / DIY-Filament-Dryer

DIY WiFi Filament dryer
GNU General Public License v3.0
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A fatal error occurred: Failed to connect to ESP32: No serial data received. #6

Closed razserv2010 closed 3 months ago

razserv2010 commented 4 months ago

I'm experiencing a error: A fatal error occurred: Failed to connect to ESP32: No serial data received. I connected using FTDI232 3V3 - 3V3 TX - RX RX - TX GND - GND

Could it be that the U3 component is MIC5365-1.8YD5-TR instead of 3V3?

photo_2024-02-19_15-53-19 photo_2024-02-19_15-53-24

SasaKaranovic commented 4 months ago

Hi Raz,

Sorry about that, there was a typo in the BoM but it's fixed now. You would need MIC5365-3.3YD5-TR (or any other equivalent 3v3 LDO).

razserv2010 commented 4 months ago

Hi Raz,

Sorry about that, there was a typo in the BoM but it's fixed now. You would need MIC5365-3.3YD5-TR (or any other equivalent 3v3 LDO).

So this is the reason why the pc does not recognize the esp32?

SasaKaranovic commented 4 months ago

Yes. The regulator you are using is providing ESP32 with 1.8V which is not enough for it to power up. If you switch to a 3.3V regulator, it should work (assuming everything else is ok).

razserv2010 commented 4 months ago

Yes. The regulator you are using is providing ESP32 with 1.8V which is not enough for it to power up. If you switch to a 3.3V regulator, it should work (assuming everything else is ok).

Thanks, I ordered 3v

SasaKaranovic commented 4 months ago

Sorry about that. The release files and the Altium files were updated a long time ago but when you mentioned it, I realized that the schematic is still calling out the wrong LDO.

razserv2010 commented 4 months ago

Sorry about that. The release files and the Altium files were updated a long time ago but when you mentioned it, I realized that the schematic is still calling out the wrong LDO.

Sorry but I didn't understand, LDO?

SasaKaranovic commented 4 months ago

LDO regulator. The schematic had the wrong LDO part number. If you replace it with 3.3V regulator, it should work.

razserv2010 commented 4 months ago

LDO regulator. The schematic had the wrong LDO part number. If you replace it with 3.3V regulator, it should work.

Thanks, I ordered 3.3V

razserv2010 commented 4 months ago

LDO regulator. The schematic had the wrong LDO part number. If you replace it with 3.3V regulator, it should work.

After I replaced the component, I was able to upload the firmware but the esp32 does not connect to wifi

razserv2010 commented 4 months ago

Until the Si7021 sensors arrive, I want to use the board but it won't let me connect to wifi How can Si7021 be bypassed?

katodo commented 4 months ago

you can start to bypass "if (!temp_sensor_out.begin())" at the begin of code.

SasaKaranovic commented 4 months ago

@razserv2010 As @katodo said you could stub out (comment out) parts of the code that rely on Si7021. But it might be tedious and also I would recommend using the sensor since some portions of the code depend on it.

I am working on new version of this board that should offer some improvements that people have asked for.

razserv2010 commented 4 months ago

@razserv2010 As @katodo said you could stub out (comment out) parts of the code that rely on Si7021. But it might be tedious and also I would recommend using the sensor since some portions of the code depend on it.

I am working on new version of this board that should offer some improvements that people have asked for.

The sensors Si7021 arrived, trying to connect to wifi but without success, I opened a new issue about it.