4,278 questions with no upvoted or accepted answers
5
votes
1
answer
172
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
5
votes
1
answer
768
views
Touching a capacitive button, non-mechanically
This is not about using a capacitive button to control an Arduino; it is the opposite. I would like to "touch" a capacitive button on another conventional device. There could be a way like ...
- 357
5
votes
2
answers
596
views
First Uses of Digispark can't get past upload error
Windows 7 (64Bit) Parallels VM on Macbook Pro running BigSur. Arduino version 1.18.19, Digispark ATtiny85 Micro USB.
Loaded Boards Manager http://digistump.com/package_digistump_index.json and updated ...
- 51
4
votes
0
answers
140
views
Arduino IDE v 2.2.1 log file not limited in size (on Ubuntu 23.04)
I was learning/building with a new Arduino Nano ESP32 yesterday and left the Arduino IDE running overnight on Ubuntu 23.04 and it used all the space on my hard drive to write log files which broke my ...
- 149
4
votes
0
answers
2k
views
Is there a way to use ESP8266 in promiscuous(monitor) mode and see the the wifi packets?
I didn't find much documentation about ESP promiscuous mode (just from the espressif sdk although I'm using ArduinoIDE https://docs.espressif.com/projects/esp8266-rtos-sdk/en/latest/api-reference/wifi/...
- 73
4
votes
0
answers
431
views
Rotary Encoder with interrupts - erratic behaviour
I'm trying to change my working rotary encoder code (stolen from here) to an interrupt-based code on my Mega2560. The trouble is that the result behaves very erratically, even though the physical ...
- 41
4
votes
1
answer
319
views
Connecting nRF24L01 to ATmega328PU with external 8 MHz crystal problem
I am trying to fix the problem of communicating between two nRF24L01+ together, one connected to an Arduino Uno and another connected to an ATmega328PU with an 8 MHz external crystal.
The bootloader ...
- 61
4
votes
0
answers
76
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 ...
- 41
4
votes
1
answer
289
views
Ethernet library compilation error
I'm trying to connect my Arduino to the internet, but my Ethernet connection config code fails when I try to verify it, and I'm not sure why.
I'm using an Ethernet shield and have installed the ...
- 41
4
votes
0
answers
9k
views
How do I interpret the esp8266 "boot mode" message?
Everytime the chips resets, we get the reason and the next boot mode.
ets Jan 8 2013,rst cause:XXX, boot mode:(YYY,ZZZ)
For XXX we can check the meaning here.
For YYY and ZZZ I am not sure but I ...
- 225
4
votes
2
answers
735
views
Bluetooth communication not working with DC power but works with USB power?
I am running an HM-10 Bluetooth Low Energy (BLE) module to transmit serial data (using SoftwareSerial) from an analog sensor onboard my Arduino Uno to a serial terminal app on my Android phone. When I ...
- 161
4
votes
0
answers
276
views
Arduino Due SAM3X ADC programmable input offset not working
In the datasheet of the SAM3X8E in Section 43.6.9 Page 1327 it clearly states that the SAM3X/A has a programmable offset for ADC input in Single-Ended mode and I believe that the Atmel ASF library ...
- 41
4
votes
0
answers
56
views
Multiple MuxShield 2's connected to a single Arduino Mega
I am working on a project and need alot of toggle buttons to control various things around the house. I connected 5 MuxShield 2's to my Arduino Mega. The first two will serve as inputs and the last ...
- 61
4
votes
0
answers
718
views
ArduinoDue - Matlab: SerialUSB.write() sends ASCII?
I'm trying to get some binary data from an Arduino Due to Matlab.
Basically this is the setup:
Due:
byte usbMsg[33]= {0};
// filled with dummy as example
usbMsg[1] = '00000001';// in[3];
usbMsg[2] =...
- 141
4
votes
0
answers
343
views
Is Arduino WiFi101 library fully compatible with Arduino MKR1000 with WiFi HW?
Will all the classes in this library work with the MKR1000 with wifi hardware?
The guide mentions "wifi shield".
So, does the library work exactly the same with the Arduino MKR100 (with the onboard ...
- 201