esp8266

来源： https://stackoverflow.com/questions/54621991/how-is-the-esp32-doit-devkit-finding-another-host-in-the-same-lan-via-mdns

来源： https://stackoverflow.com/questions/54621991/how-is-the-esp32-doit-devkit-finding-another-host-in-the-same-lan-via-mdns

来源： https://stackoverflow.com/questions/63495901/nodemcu-lua-integer-max-value-is-231

问题 I am trying to make a door relay switch system that i am able to operate from anywhere via port forwarding. I have found a very helpfull guide and code where i based my program on: https://openhomeautomation.net/control-a-lamp-remotely-using-the-esp8266-wifi-chip https://github.com/openhomeautomation/esp8266-relay I made the code a little different to reset the esp8266 after five seconds of putting the relay in high state. That all worked fine but when i accessed the port via multiple devices

问题 I have an ESP32-WROOM, as seen here. In the Arduino IDE, I compile and verify my sketch, and then attempt an upload. I get the following error: esptool.py v2.1 Connecting........___ Chip is ESP32D0WDQ6 (revision (unknown 0xa)) Uploading stub... Running stub... Stub running... Changing baud rate to 921600 Changed. Configuring flash size... Warning: Could not auto-detect Flash size (FlashID=0xffffff, SizeID=0xff), defaulting to 4MB Compressed 8192 bytes to 47... A fatal error occurred: Timed

问题 I have an ESP32-WROOM, as seen here. In the Arduino IDE, I compile and verify my sketch, and then attempt an upload. I get the following error: esptool.py v2.1 Connecting........___ Chip is ESP32D0WDQ6 (revision (unknown 0xa)) Uploading stub... Running stub... Stub running... Changing baud rate to 921600 Changed. Configuring flash size... Warning: Could not auto-detect Flash size (FlashID=0xffffff, SizeID=0xff), defaulting to 4MB Compressed 8192 bytes to 47... A fatal error occurred: Timed

问题 I have an ESP32-WROOM, as seen here. In the Arduino IDE, I compile and verify my sketch, and then attempt an upload. I get the following error: esptool.py v2.1 Connecting........___ Chip is ESP32D0WDQ6 (revision (unknown 0xa)) Uploading stub... Running stub... Stub running... Changing baud rate to 921600 Changed. Configuring flash size... Warning: Could not auto-detect Flash size (FlashID=0xffffff, SizeID=0xff), defaulting to 4MB Compressed 8192 bytes to 47... A fatal error occurred: Timed

问题 I'm using an Arduino with an ESP8266-01 module to upload a value to a Cloud Firestore database using the createDocument API with the following payload: { "fields": { "distance": { "integerValue": "555" } } } I do a POST-request to a route like this: https://firestore.googleapis.com/v1beta1/projects/<MY_PROJECT>/databases/(default)/documents/<SOME_COLLECTION>?key=MY_VERY_SECRET_KEY That all works, but I would like to add the server timestamp as well. I've found a few answers here on

问题 I'm trying to control 8 channel relay with esp8266. and i've been following this tutorial on youtube https://www.youtube.com/watch?v=dLmz0xdDOLk I did exactly what the guy said. I uploaded my code to Arduino and I get a "parseObject() failed" error on the serial monitor while the code trying to parse JSON i think(not sure). I don't really understand coding much so I wonder if you guys help me out with my project.(the only thing I couldn't do was to change my web host PHP version to 5.2, I use

问题 I'm trying to control 8 channel relay with esp8266. and i've been following this tutorial on youtube https://www.youtube.com/watch?v=dLmz0xdDOLk I did exactly what the guy said. I uploaded my code to Arduino and I get a "parseObject() failed" error on the serial monitor while the code trying to parse JSON i think(not sure). I don't really understand coding much so I wonder if you guys help me out with my project.(the only thing I couldn't do was to change my web host PHP version to 5.2, I use