Unanswered Questions
260 questions with no upvoted or accepted answers
7
votes
0
answers
774
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
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....
4
votes
1
answer
109
views
Can I use regular pins (Example: D2, A3, etc...) as serial (RX, TX)?
Python/Arduino Beginner here...
I have a DFplayer I am trying to hook to my Arduino and I want to hook it up through the regular pins instead of the RX and TX pins, but I've not been able to find ...
3
votes
0
answers
136
views
Keypad - Speaker - Interference
I am trying to build a system, that plays specific audios (.wav files) from a SD-Card, according to the key combination that has been pressed.
I am using:
4x4 Membrane
4 Ohm Speaker
MicroSD Card ...
3
votes
0
answers
575
views
nRF24L01+ problem with receiving response
I'm sending currently data from a Raspberry to an Arduino, but I have a problem with receiving response from the Arduino back to the Raspberry:
Sent the message: ['H', 'i', '.', '.', 'A', 'r', 'd', '...
3
votes
0
answers
2k
views
Arduino Bluetooth upload problem HC-05 v4.0
I upload code into arduino nano using a self-made PCB with bluetooth using this method. I was initially using Arduino Nano (chinese Clone, the one with CH340G) and Bluetooth module HC-05 (version 3.0) ...
3
votes
0
answers
670
views
Arduino nano clone problem with interrupt on falling edge on pin 2
I've s 1Hz square wave coming from a DS1307 SQW/OUT pin going into pin2 on the Nano that is set up as input with internal pullup enabled.
I've set up the interrupt on falling edge but I can't get the ...
2
votes
2
answers
123
views
Problem sending serial data between Arduino and ATtiny back and forth
I am working on communication between a Arduino and ATtiny13, and I need to get this bare-bone communication to work. There is a Arduino Nano powered by USB cable from the PC, and there is ATtiny13 ...
2
votes
0
answers
117
views
Reading MAX31888 works with Nano, but not with ATtiny85
I'm using the OneWire library to try and read temperatures from a MAX31888 sensor using this Arduino program:
#include <SoftwareSerial.h>
#include <OneWire.h>
#define RX PB4
#define TX ...
2
votes
0
answers
638
views
GPS speedometer with NEO 6M - latency issue
I have built a speedometer, based on this
youtube video: https://www.youtube.com/watch?v=gKuJxjxNP-k&t=34s
The speedometer is for a car, so it needs to be in real-time and accurate, with the ...
2
votes
0
answers
315
views
Arduino NANO RF reciever and Digispark Attiny 85 transmitter issues
I am trying to send RF signal from Digispark Attiny 85 (this one) and receive the signal with Arduino NANO V3.0 ATmega328 (this one). Transmitter and receiver are STX882 and SRX882 (these). Library ...
2
votes
0
answers
1k
views
Problem using CH340 driver for Nano
I am at my wits end and hope somebody here can provide some much-needed guidance.
My platform is an Asus ROG AMD laptop running Windows 11.
I recently decided to try working with Arduinos and ...
2
votes
0
answers
181
views
MacOS Ventura freezes/crashes when i plug in my Arduino Nano Clone
I'm using a MacBook Pro 2013 Late with OpenCore Patcher. Currently Ventura 13.3.1 is installed. Before this version was installed, I had no problem using arduino on my MacOS computer. But right now, ...
2
votes
0
answers
115
views
How to show repeated result on LCD while button is pressing
my results are here.
0 press--"a"
1st press--"b"
2nd press--"c"
3rd press-- still showing "c"
When button pressed 3rd time, It must be repeated to show "a&...
2
votes
0
answers
746
views
4x TPIC6B595 + 4x 7 segment display
I am going to use 4x TPIC6B595 and 4x 7 segment display with common anode.
Below You Can find vendor site of this display.
https://sklep.avt.pl/wyswietlacz-led-2-30-57mm-zielony-wa.html
Here is my ...