Unanswered Questions

4,219 questions with no upvoted or accepted answers
5 votes
0 answers
159 views

Handling non-standard I2C read response lengths with Wire library

I'm trying to read from a Sam&Wing XW12A 12 channel touch sensor IC using I²C. The IC responds to an address read packet with 16 uninterrupted bits representing its state. However, since I²C ...
5 votes
0 answers
267 views

nRF24L01 continuously reading closed pipe

I am testing communication between two nRF24L01 modules. The receiver is getting the transmitted message but is also continuously reading (null) data from a closed pipe? I am using the RF24 by TMRh20 ...
5 votes
0 answers
816 views

Ultrasonic Flowmeter Using TDC-GP22 and Arduino Uno

I'm working on a project of Ultrasonic Flow Meter with TDC-GP22 using Arduino UNO. I used the library of leokoppel In my code,the configurations of the registers are copied from the Application Note ...
4 votes
1 answer
66 views

Wirelessly (but fast) transfer STEP and DIR output from Arduino to stepper driver

Very short version: Looking for a way to wirelessly get STEP and DIR signals (only those two signals) from an Arduino to a DRV8825 stepper driver about a meter away: Arduino -> STEP and DIR IO pins ...
4 votes
0 answers
99 views

Adafruit_LEDBackpack library interfering with analog input reading

I'm trying to do something I think would be simple. I'd like to read the input of a electret microphone board and update the Adafruit 24-segment LED Bar Graph. I got each individual item working ...
4 votes
0 answers
4k views

ESP32 IR remote

my board is a firebeetle esp32 that I am using as an IR remote. After using the Ken Shirrif IRremote library for about 6 months successfully, then the time came to change a few things on the web ...
4 votes
0 answers
1k views

Clion Arduino plugin: Error:Could not find Arduino SDK (set ARDUINO_SDK_PATH)

I am trying to setup CLion as my workspace for my arduino. I have installed the two Arduino plugins for CLion, generated a new sketch project, but I am getting cmake errors on opening the project. ...
4 votes
1 answer
462 views

Arduino Uno WiFi - How to disable WiFi?

I'm using Arduino Uno Wifi. I made my Arduino to get connected with my local network based on http://www.arduino.org/learning/getting-started/getting-started-with-arduino-uno-wifi Now I would like to ...
4 votes
0 answers
533 views

Arduino WebSocket Client "Connection Failed"

I use this code to connect Arduino MKR1000 to API through Web Socket, but it didn't connect to the server. Can any one help me to correct the code. This is the Arduino code: #include "Arduino.h" #...
4 votes
2 answers
271 views

Arduino Uno R3 stops executing code, when trying to instantiate multiple HX711 objects

This is my first time asking something on this platform, so if form or anything else is off, please feel free to point out things about how I could refine it and ask more concisely in the future. I'm ...
3 votes
0 answers
44 views

Can not burn arduino pro mini 8 MHz bootloader with usbasp

I am using schematic of Arduino Pro mini 3.3v/8 MHz version. Please see below circuit diagram I built. Power supply to circuit is 3.3V. I have a USB ASP programmer which I used in previous version of ...
3 votes
0 answers
132 views

Integration of MAX30100 and DS18B20 Thermal Probe Integration

This is for my final year project that I have been tasked with designing a patient monitoring system. However, during the last stretch of model prototyping, I am experiencing issues with my MAX30100 ...
3 votes
0 answers
126 views

PCA9685 - Hardware problem with diode?

I'm working on a project, where I need to run several high-torque servos. For that I bought come of these PCA9685 boards. I hooked everything up with my arduino and connected an external 5V - max 3A ...
3 votes
0 answers
99 views

220v lightbulb gradual dimmer

I am trying to turn my incandescent bulb gradually,say its brightness should go from zero to 100% in 10 mins. In doing so I found the following code and it works well but it's not as gradual as I ...
3 votes
0 answers
84 views

SHT30 giving wrong humidity

I have an SHT30 sensor which is feeding to my Arduino via an RS485 connection. The readings are coming in as they should be for both temperature and humidity. The problem, however, is that the ...

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