1,304 questions
Advice
0 votes
3 replies
95 views
Arduino official website- Internal server error Error code 500
I'm facing Internal server error Error code 500 while running the arduino IDE or downloading any library. Is it my system error or some error on the official website server.
-1 votes
0 answers
46 views
Distance Measurement System Using Arduino UNO and Ultrasonic Sensor
I am building an IoT system to measure the distance from two individual points by using two HC-SR04 ultrasonic sensors and two 16x2 I²C LCD displays to show each sensor’s reading separately. Sensor 1 ...
1 vote
0 answers
92 views
PWM FSP code not working in ARDUINO UNO R4 WIFI
I decided to program a PWM using an ARDUINO UNO R4 WIFI. I tried to configure the RENESAS RA4M1 microcontroller with the FSP libraries through the Arduino IDE. What I want to do is generate a PWM and ...
1 vote
1 answer
102 views
How to prevent analog clock hands from leaving trails on TFT LCD with ESP32
I’m building an analog clock on an ESP32 Wrover Kit with a TFT LCD using the TFT_eSPI library. The clock displays the correct time using NTP, but I have a problem with the hands: When the hands move, ...
2 votes
1 answer
125 views
Why can't my if statement loop on Arduino IDE?
I want my LED to have three states with push button on blinking off But the second state didn't blink, it is only off-->on. Here's the code: #define btn 7 #define led 8 int button; int a; void ...
0 votes
2 answers
102 views
How to decouple a web server & MQTT on an ESP32 [closed]
I've got an ESP32-POE running a web server as well as publishing MQTT to a broker. I want to publish MQTT every 60s but sticking that delay into void loop(void){} means server.handleClient(); is also ...
0 votes
2 answers
113 views
ESP32 with MQTT stops working after over 100 days [closed]
I built a custom PCB with an ESP32-WROVER-IE-N8R8 to read a pressure difference in a filtration system. The data is then send via MQTT to a MQTT Broker (Mosquitto) on a Linux Server. This happens ...
0 votes
0 answers
36 views
Arduino IDE does not find the ESP32-SBC-FabGL board after a necessary downgrade of the ESP32 library. Why?
I'm trying to compile and transfer a sketch (particularly KeyoardScanCodes.ino, but the other example sketches show the same behavior) for my FabGL board (Olimex-ESP32-FabGL) by using the Arduino IDE ...
1 vote
0 answers
52 views
Very Specific Combination of Servo.write and analogWrite messes up frequencies on esp32 PWM pins
Preface: First time asking a question, please take it easy with the "YOU SHOULD FORMAT YOUR QUESTIONS THIS WAY!" Question: Why does this happen? I'm programming an esp32 S3 dev module using ...
1 vote
1 answer
108 views
esp32 board wont Serial.print() on the serial monitor
So I recently wanted to set up two way comm betwen two esp32-C3-mini-1 v1.1 boards and one of them is connected to a lcd screen, they both work and I can uplod new code on them and the one connected ...
0 votes
0 answers
120 views
Failed to connect to ESP32
I am trying to upload code to my ESP32, but I keep getting the following error: A fatal error occurred: Failed to connect to ESP32: Download mode successfully detected, but getting no sync reply: The ...
1 vote
0 answers
32 views
Get Camera Frame Latency after Set Pins of microphone (INMP441)
I don't know why when I uncomment this line: // i2s_set_pin(I2S_NUM_1, &i2s_mic_pins); getting fb frame takes much more time. (I don't have any error.) OUTPUT: Without i2s_set_pin: 16:59:56.940 -&...
0 votes
0 answers
48 views
Last will testimony (LWT) not working on AWS IoT Core
WiFiClientSecure net; PubSubClient client(net); char lwtMessage[256]; void setup() { Serial.begin(115200); pinMode(RELAY_PIN, OUTPUT); connectWiFi(); // Prepare JSON for Last Will ...
1 vote
0 answers
43 views
NittoBend Bendlab (ADS) 2-axis Sensor Code - ESP32 Feather Compatability
I am trying to initialize and use the NittoBend's 2-axis Bending sensor with the ESP32 Feather (coded in Arduino IDE). I have the circuit setup correctly (GND to GND, VCC to 3.3V, nDRDY to GPIO 32, ...
0 votes
1 answer
180 views
SPI Data Transfer ESP32-H2 to ESP32-H2, Arduino IDE. Can't get Slave to receive data
I'm an old guy (70) developing a complex instrument, and I have almost everything else working. The only thing left is SPI communication between two ESP32-H2 chips hardwired on the same board. This is ...