24,983 questions
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ESP32 - SIM7000G and TinyGSM response from server stuck/delayed with multipart/form-data POST request
I am experiencing a delay in receiving the HTTP POST request body when sending data over a TCP connection using the TinyGSM library with a SIM7000G and an ESP32 (LilyGo T-SIM7000G).
Below is my ...
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-1
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0
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23
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How do you install MAX3232-based RS232↔TTL converter? [closed]
I’m trying to use a MAX3232-based RS232↔TTL converter module (see image below). Unlike common MAX485 modules or other MAX3232 variants, this one doesn’t have through-holes on the ← and → TTL pads. The ...
- 99
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13
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WeMos connection to SinricPro
I am using a WeMos Wifi ESP8266 with a DHT11 sensor to measure temperature and humidity in my house and send them to SinricPro. Alexa then reads from here and uses them to answer to the question "...
- 109
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1
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96
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Can't upload in Platformio and board is suddenly not detected in STM32CubeProgrammer
I'm using a Nucleo-H755ZI-Q. I used it together with Platformio and Arduino framework. In order to get Arduino to work I'm using this setup:
[env:nucleo_h743zi]
platform = ststm32
board = ...
CommunityBot
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2
votes
3
answers
2k
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Normally-Open opto-coupler board
I'm looking for a Normally-Open optocoupler board for arduino. I need to control power of a device (DC 12v, 500mA).
I tried to use TLP281 board, which works, except that it inverts the output: device ...
1
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0
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47
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Arduino libraries in Atmel Studio, importing INO and building core for DUE
Is there a simple way to use the Arduino libraries in Atmel Studio 6 or 7? Already tried it with include path but thats a never-ending story. Looking for a precompiled .a file for the Arduino Due so I ...
- 11
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18
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Elegoo Uno R3 not showing up in dmesg or /dev/tty [closed]
I'm trying to learn how to write raw AVR C for the Arduino. I'm currently using the Ubuntu WSL on Windows to do this. However, I don't think my computer is recognizing the device. When I run
dmesg -w
...
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-1
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0
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22
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library recommendations for data encryption, [closed]
Does anyone have any library recommendations for data encryption, especially Ascon and AES cryptography?
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2
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4k
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is there a timeout for Ethernet.begin?
I'm working on a project, but just for testing, I haven't connected it to the internet yet, even though the code SHOULD be ready to roll out.
When trying to test some of my code with the serial ...
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0
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25
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Sustain input current on the RTC pin of Arduino R4 WiFi [closed]
I need to use my Arduino R4 WiFi from time to time as a data logger, and of course I need to access the curent date and time.
So I'm wondering about the battery I need to connect to the dedicated RTC ...
- 27
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1
answer
210
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PubSubClient hanging on ESP32C3
I may have done some things incorrectly here, but this I what I have for publishing image that I read from serial camera to the MQTT broker:
void capturePicture() {
if (!cam.takePicture())
...
CommunityBot
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1
vote
2
answers
87
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Arduino keeps restarting with L9110 and DC motor
I am trying to control a DC motor using the L9110 motor driver and Arduino MEGA 2560.
Here's the code.
#include <Arduino.h>
const int rightA = A3;
const int rightB = A2;
void setup() {
...
CommunityBot
- 1
0
votes
1
answer
31
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Compiling issues with included library MX1508 for Billy Bass build
Thank you for considering my question.
I have been learning Arduino so I can teach coding basics to my son. I came across a fun project to interface bluetooth with an old singing Billy Bass so he can ...
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1
answer
1k
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Receiving "ERROR: Timeout waiting for client." when connecting to a single table in database - mysql connector on Arduino Uno Wifi Rev2
I have a MariaDb database on a local server and I am using it to store data from various Arduino's around my shop. The database currently has 12 tables. I also have another Arduino Uno Wifi Rev2 that ...
CommunityBot
- 1
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0
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44
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Maximum servo issue in quadruped spider robot [closed]
I have been buidling a quadruped spider robot with nrf24l01 module as transciever. In addition to it, I wanted to attach another servo (13th one) for a turret mechanism so that I can shoot out bullets....
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