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Arduino : Recent Questions and Answers (Page 6)

Find answers to your questions about Arduino or help others by answering their Arduino questions.

Write a Struct using ArduinoBLE library

Hello I'm trying to send some Structs such as:typedef struct __attribute__ ((__packed__)) myohw_command_set_mode { myohw_command_header_t header; ///< command == myohw_command_set_mode. payload_size = 3. ...

Asked on 09/25/2021 by Sicks

1 answer

Did not find fingerprint sensor :( Arduino Mega 2560 Adafruit Fingerprint Sensor

I'm getting the following error when I try to enroll fingerprints using the Arduino Mega 2560 microcontroller along with a Fingerprint Scanner:Did not find fingerprint sensor :(The exact devices I'm...

Asked on 09/25/2021 by Raymond Wachaga

1 answer

Wait between UART frames

I have to reproduce a signal (of 6 UART frames) which have 950 µs delay between each of the frames. Than, a delay of 37ms at the end of those...

Asked on 09/25/2021 by Martin.G

2 answer

Possible to have different torque levels on MG966R servo with Rotary Potentiometer?

I want to apologise first and foremost, and say that I am very new to Arduinos! I wanted to control the torque on a MG966R servo so that I can...

Asked on 09/25/2021 by CaptainLemon

1 answer

Memory usage in AnalogBinLogger of SdFat library

The AnalogBinLogger.ino file of SdFat library says the following:Each 512 byte data block in the file has a four byte header followed by up to 508 bytes of data. (508...

Asked on 09/25/2021 by Harini

1 answer

Sim800 FTP Arduino

I've been unable to FTP anything using an Arduino and SIM800L. I have reduced the code as far as possible:#include <SoftwareSerial.h>//Create software serial object to communicate with SIM800LSoftwareSerial mySerial(3,...

Asked on 09/25/2021

2 answer

ESP-01 + UNO won't detect gateway

Apparently, this combination of hardware won't accept anything other than WiFiEsp.h together with SoftwareSerial.h (if anyone knows something better/newer than these two, please let me know).Thing is: I can...

Asked on 09/25/2021 by MrCabana

2 answer

Error reading file

What should be done to solve it?I have edited the board.txt file and none of my codes are getting verifiedit shows this error:"Error reading file (C:Program Files...

Asked on 09/25/2021 by Yash

1 answer

Reading 4-20ma signal on arduino

I want to read a 4-20 mA analog signal from a 24V flowmeter. I've read the simplest way is to convert it into 1-5V signal using a 250 ohm resistor....

Asked on 09/25/2021 by Sumit Mann

1 answer

How to use tinygps.h library to measure distance? using NEO6mv2

any reference site for the format code for tinygps.h to measure distance?or any codes for tinygps.h for measuring distance i'm just a beginner in learning arduino thank you...

Asked on 09/25/2021 by Reiniel Cirujano Antonio

1 answer

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