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Questions tagged [esp32]

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A cheap and low-power microcontroller family using Tensilica Xtensa LX6 CPU cores with integrated WiFi and dual-mode bluetooth.

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I am using ESP-WROOM-32D in STA mode with Arduino IDE(2.0.5) ESP32 board(2.0.9). I am trying to do http post request with ESP32. Router that provides internet supports only IPv6. Here I am getting ...
dharmikP's user avatar
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4 votes
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Everytime the chips resets, we get the reason and the next boot mode. ets Jan 8 2013,rst cause:XXX, boot mode:(YYY,ZZZ) For XXX we can check the meaning here. For YYY and ZZZ I am not sure but I ...
nemewsys's user avatar
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3 votes
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I'm using this 'ESP32-WROOM-32' but I can't find the correct board in the IDE. I see the esp32-wroom-DA (edit, i took it to the store where i bought it and it worked fine with theirs. they were on ...
I-like-turtles's user avatar
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I want to synchronize time with NTP server once in some time. I am using DOIT ESP32 DEVKIT V1, I tried with getLocalTime() function but it returned true even without wifi, but as I know without wifi ...
hungryman's user avatar
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3 votes
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I want to connect an ESP32 to a SMA Sunny Boy SB5000-TL Solar convertor over Bluetooth, but I cannot establish a connection and I'm kind of stuck. I use the internal bluetooth module of the ESP32. ...
mvermand's user avatar
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I have an ESP32 application that uses a web server as a user interface. For auditing and debugging during development I use Serial; however, that is impractical in the installed system. So, I decided ...
Eric Vortriede's user avatar
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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 ...
Tanenthor's user avatar
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2 votes
1 answer
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I have a ESP32 with a web server. In the page where I show the sensor readings and the state of the system, right now the readings are showing themselves well. The problem comes when I want to show ...
vram's user avatar
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2 votes
1 answer
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I cannot install the esp_camera library. When I try to add the .zip, I get "does not contain a valid library. Everything about this ESP-32 Cam seems to rely on that library, and I can't find a ...
brunobhr's user avatar
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2 votes
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339 views

im trying to upload my code to my esp32 through OTA iam able to discover the network port but my code is always failing to upload i donno the reason behind it #include <WiFi.h> #include <...
Abhay Kondru's user avatar
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2 votes
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811 views

I need to receive data from sensors on the websites located on my PC (hosted with XAMPP). When I was first using AsyncWebServer library and hosting them on ESP32 everything was working with a ...
CaramelTr's user avatar
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I have been able to get a large file to be sent in packages over BLE to a characteristic on my ESP32-Wrover-B module (yay!). However, these files can be large (+300kb) so I need to repackage them ...
NRav's user avatar
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435 views

I want to implement a simple external drive with ESP32-S3 that would act like a normal USB enabled flash drive when connected to a computer. The actual storage of the data is done mechanically (for ...
martin.havelka's user avatar
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2 votes
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I have a mystery I was unable to solve and would greatly appreciate it if anyone could shed some light on this. I have a servo DSS-M15S 270 which I managed to run perfectly fine with Arduino Uno (code ...
Shay Lavi's user avatar
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2 votes
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791 views

I am using the following device: https://www.aliexpress.com/item/1005003152097545.html?spm=a2g0o.order_list.order_list_main.119.222218028PapM6 I am trying to make an IoT sound-measurer which will send ...
BurgerMan's user avatar
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I am new to this and I have purchased the Lilygo T-Wristband to prototype a watch that will vibrate upon receiving a 1-bit bluetooth signal from an android app. The goal is to allow the user to set ...
gvk's user avatar
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481 views

I'm running into this weird problem. My code is working just fine when I upload it to an ESP32 from Arduino IDE. That same code is not working when I upload it using PlatformIO IDE. The same libraries ...
NicoRiff's user avatar
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166 views

I am looking for a working example of an ESP32 sending telemetry data to Azure IoT hub. I find nothing working around the internet: below is the code I am trying to make it working. As you can see in ...
Stéphane de Luca's user avatar
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2 votes
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I have data on smaller modules with ESP32 and ESP8266, but can't find anything reliable pertaining to the whole board power consumption (current) with 12V input and microcontroller at low power or ...
Paul Jurczak's user avatar
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2 votes
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1k views

I have 3 nodemcu's(ESP32) each connected with a sensor, from which I get data and send it to aws IoT-core. How can I send all 3 sensor's data by a single MQTT subscription? The below code is for a ...
Shridatha Hegde's user avatar
  • 21
2 votes
0 answers
274 views

I recently got an ESP32-CAM for a project of mine. I was planning to attach an ultrasonic sensor to it, and when the ESP32 CAM detects a face, it would send a signal to the ultrasonic sensor to start ...
Justin's user avatar
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2 votes
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262 views

Currently I'm starting softAP mode on ESP32 with WPA2_PSK as auth type(as WPA3 is not supported for softAP). When I am trying to connect my iPhone to the softAP, iOS gives a warning that WiFi security ...
coolesthead's user avatar
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I want to build a device to measure deceleration force when a car brakes. I am using a MPU6050 for get data and I read from it acceleration on X,Y,Z axes in m/s2 and also it gives me gyro in degrees/...
David's user avatar
  • 63
2 votes
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6k views

I want to create some buzzers connected via bluetooth for a quiz show. I got several ESP32. One of them is the master (BLE Server), the other ESP32s are the buzzers (BLE Clients) with one big button ...
Tetopia's user avatar
  • 23
2 votes
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384 views

I'm building a circuit with a GPS sensor and an esp32. My input voltage is designed to be 5V but I experienced some issues where people put lower charger in input (<4V). As a result my esp32 will ...
Mickael Camus's user avatar
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