Unanswered Questions
4,275 questions with no upvoted or accepted answers
7
votes
0
answers
404
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 ...
- 171
7
votes
0
answers
753
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 ...
- 131
6
votes
1
answer
2k
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 ...
CommunityBot
- 1
6
votes
0
answers
7k
views
Why is Wire.onReceive() called during requests?
I'm building a complex I2C-based networking protocol and have noticed that the Wire.onReceive() handler is called both for I2C read and write operations. When the master writes to the slave, it is ...
- 2,519
5
votes
0
answers
923
views
Internet in ESP32 is not working with IPv6
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 ...
- 3,144
5
votes
0
answers
2k
views
How to set ESP32 RTC clock source
According to the manufacturer's link below, the default RTC timekeeping in the ESP32 is supposedly based on Internal 150 kHz RC oscillator.
Apparently, there is another option called Internal 8.5 MHz ...
- 612
5
votes
0
answers
365
views
SPI between Master arduino and Slave arduino
How can I send the string from Slave SPI to Master SPI?
I want to write code in Bare Metal.
The problem which I am facing is I can't make out what will be my blocking function in Master SPI code when ...
CommunityBot
- 1
5
votes
0
answers
2k
views
Modbus TCP/IP using Arduino uno and ENC28J60 module
I have this project where I need a modbus tcp server that will host a series of sensor data for other modbus client devices to read. I use this Library by Andresoarmento
This is the code i am using ...
5
votes
0
answers
2k
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.
...
5
votes
1
answer
1k
views
How to send HTTP requests to specific port using Ciao?
I currently have a working REST client on my Arduino, but the requests always go to port 80. How do I make it send the request to a specific port?
This is my current code:
/*
File: RestClient.ino
This ...
CommunityBot
- 1
5
votes
0
answers
1k
views
Manchester 433MHz Nano to ATTiny85
My transmitter is a Nano, the receiver is a Tiny85.
I use a Logic Analyzer to check if stuff is moving, I can clearly see data coming in at the receiver.
The receiver does not 'decode' the data, man....
- 2,519
5
votes
0
answers
419
views
DHT22 reading weird values
I just hooked up a DHT22 I had laying around in a parts drawer to test something and it is giving out some crazy wrong values, I am running the adafruit library's unified example and this is the ...
- 19
5
votes
0
answers
681
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"
#...
- 2,519
5
votes
0
answers
939
views
Is it possible to use the DASH7 protocol in an arduino?
I've been reading about the protocol DASH7 but can't find much documentation about it. There seems to be a protocol stack called OpenTag writen in C and I want to know if there is something familiar ...
equidna
5
votes
1
answer
175
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 ...
- 151