Top new questions this week:
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I’m trying to turn off line numbers on the Mac Arduino IDE but don’t see the option for it after navigating to Arduino IDE > Preferences. Below is a screenshot of what I am seeing. I saw this …
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I’m making a stopwatch using an attiny85, the idea was to use the timer interrupts to count the seconds my theory was: since I set the Attiny85 to run at 1Mhz, I can use a presale of 1024; 1000000 / …
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I’m new to C++. How to make a menu without if() {} else {} & switch() case? I made a menu on an array, but for some reason it doesn’t compile. How to correct it? typedef void (*cbd)(uint8_t, …
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FastLED web client, when clicked on, all RGB on in red color. Clicked off, all RGB off/black. but not work. Here is the full code, i don’t know why it’s loop always and web client stuck when i clicked …
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good afternoon, I am doing a project of a 7×10 led matrix with 2 cascaded 74HC595 shift registers to drive the 10 columns and a CD4017 decade counter for the 7 rows. The 8 rows of the LED matrix are …
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I am using a project with an MQ138 sensor and want to push the real time sensor reads to firebase. Currently, the wifi/firebase part and sensor part work fine separately. The code connects to wifi and …
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I have an Arduino Pro Micro ATmega32U4 and I’m facing this error message on uploading: Copyright (c) Brian Dean, www.bdmicro.com/ Copyright (c) Joerg Wunsch System …
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Greatest hits from previous weeks:
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I have an Arduino Uno R3 board and after some time not in use it seems to have corrupted. My code is below, basically I want to rotate a servo 90 degrees every 12 hours but as soon as I plug it in the …
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I have hooked up 2 channel 5-volt relays with NodeMCU v1.0 as shown in the fritzing below. Relay are powered with a different power source than NodeMCU. As of now, I am powering the NodeMCU from my …
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I’m just a tinkerer learning Arduino with my son and I was surprised that when I plugged the USB cord back in to the Arduino the program was still running and I thought to myself, “it’s a good thing I …
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When I started Arduino, I did not expect that everything must be contained in an infinite loop. I thought I could just write something like: motor start -> motor stop. But in actuality, what I get is …
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Recently I have noticed that there are two arduino sites, arduino.cc and arduino.org. They both have the Arduino logo and both sell what seems to be official Arduino boards. Also, arduino.org came …
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In Fast.Led lib for arduino there is a code to turn off all leds FastLED.clear (); Is there also a shortcut to turn all LEDs ON, and with a specific color
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What is the difference between print( ) and println( )? I see none when I run a code.
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Can you answer this question?
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I’m following this tutorial on how to install FTDI drivers on macOS, but am facing some issues. After downloading the USB Serial Driver version 2.4.4 (for OS X 10.14) from FTDI Chip’s virtual COM port …
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