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Questions tagged [espressif]

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18 views

OTA updating the ESP32 from a separate server

I have an ESP32 project which I'd like to be able to update OTA. The trouble is that it is in deep sleep for approximately 15 minutes before waking up, connecting to WiFi sending an MQTT packet then ...
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0answers
22 views

Online Json Service for Esp32

I'm building a simple outdoor temp and humidity sensor with an esp32 I've aquired but I need a platform that I can submit the Json to so that then my laptop can make an http request to get the Json ...
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1answer
43 views

Stack smashing protect failure ESP32 with Modbus RTU

I'm doing a project using an ESP32 TTGO with LoRa, the Max485 and a WELLPRO ADAM 8082 for Modbus communication. I'm trying to use the ESP32 as a master to and the ADAM as a slave. I'm also using Node-...
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1answer
37 views

ESP32 bluetooth discovery parse names

I'm running a sample code from ESP32 examples and I'm scanning available BLE devices. I can see device MAC address etc. But for few devices I can't see their names.I am using ESP-WROOM-32 with ...
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1answer
28 views

A few questions on the first steps with an ESP32/ESP8266 NodeMCU [closed]

I would like to know what are the first steps, as a good practice, when receiving a new ESP based NodeMCU. For example: Checking if everything works fine After you connect to the relevant COM port, ...
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1answer
81 views

Adafruit esp32 Feather Failing to compile

So yesterday, I was able to upload/compile given example code to the Esp32 Huzzah board. Today I couldn't even compile. Even carefully using the tutorial adafruit provides. I was getting errors as ...
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155 views

Arduino Uno & ESP32 communication using RS485

I am trying to establish a communication between Arduino Uno ( Master) and ESP32 (Slave) using RS485 protocol (using MAX485 module). I have successfully done this between two Arduino Unos. ...
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0answers
52 views

Clock cycle count count for the same command is not equal in ESP32

I am using ESP32 Pico Kit with Arduino Ide. I want to measure operation cycle for a few commands. The code is so simple as below: void setup() { Serial.begin(9600); } void loop() { unsigned ...
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93 views

WindowsError(31, 'A device attached to the system is not functioning.') in arduino

Having board esp32 devkit v1, to get started with arduino ide (installed recommended boards for esp32) I marked board asDOIT ESP32 DEVKIT V1 (as no other options as like ESP32 DEVKIT V1 ) so upload ...
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2answers
126 views

How to / is it possible to change Vendor Name in ESP8266-12E?

I am aware of that it is possible to change hostname for ESP8266 but I want to change vendor name also so that it lists my company/product name in routers/firewalls. Is it possible?