Newest Questions
25,002 questions
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Circuit Playground Express (CPX) + Crickit + I2C sensors
I have a Circuit Playground Express (CPX) mounted on a Crickit. I want to control two air pumps using the motor output on the Crickit, but also connect two Adafruit SCD41 sensors using I2C.
When I ...
- 9
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2
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113
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LED Matrix for Arduino R4 Wi-Fi specific functions
I'm searching for the path and the source code for the builtin (I think) function, name is: renderBitmap().
This function appears as a member of the ArduinoLEDMatrix class but its name doesn't appear ...
- 25
-1
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1
answer
92
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Reasons for an ATmega328P Nano SuperMini USB-C board not being recognized by a PC/Mac? [closed]
I recently got two of these ATmega328P Nano SuperMini USB-C boards but none of them is being recognized by my PC or Mac.
I'm using the old bootloader setting in the Arduino IDE 2.3.6, CH340 drivers ...
- 75
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1
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68
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How do I reinstall Arduino IDE 1.8.12 to correct corruption, without losing all of my libraries and board installations?
I have been told to reinstall my Arduino IDE Ver: 1.8.12 to correct some corruption with my current installation.
loading hardware from C:\Users\Paul\AppData\Local\Arduino15\packages: loading package ...
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vote
1
answer
81
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Arduino Nano ADC input selection
The maximum ADC sample rate for the '328p, using the default prescaler of 128, is given as roughly 10000 samples per second. Maybe I've missed it, but I can't see whether that is the total rate for ...
- 269
2
votes
1
answer
85
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ESP32 and Fingerprint Sensor – Serial Monitor Shows Nothing
I'm trying to connect a fingerprint sensor (Adafruit type) to my ESP32 (DOIT ESP32 Devkit V1), but the Serial Monitor remains completely blank, even though I'm using Serial.begin(9600) and printing ...
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1
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54
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When I run my for loop the serial monitor is giving very strange results
This is unfinished code for driving a 4 digit 7 segment display. When I run my data function that should output the data to send to the shift register, I get a very weird output.
0 00111111
1 00111111
...
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2
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98
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How does a sensor data move from physical layer to application layer
I have used Arduino IDE to program a IOT gateway using ESP32 and W5500 ethernet module to use them as a ethernet webserver.
I wanted to know for educational purpose, I know that sensor belong to ...
- 19
1
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0
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52
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Configuring the colors of the IDE
I do not like the dark theme at all and I set the Light theme, but the output background color is still black. I know that somewhere there is a file where it is possible to tweak the colors, but I ...
- 11
2
votes
1
answer
176
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ESP32 LED PWM fade not working?
Not sure if this belongs more in an electronics SE, but I'll give this a try.
I'm trying to use an ESP32-C3 and an NPN transistor (2N5551) to PWM drive an LED (values below). I'm trying a simple fade, ...
- 149
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35
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arduino micro A000053 disappear at device manger
I have two Arduino micro atmega32u4 boards (A000053)
and I'm trying to detect them with at Device manger but I'm stuck,
I tried to solve it with the guide below but not succeed because the device ...
- 11
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2
answers
98
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Coding Sequential Operations
I am using an Arduino r4 Wi-Fi to control unique angle settings for two different servo motors during the execution and operation of a device I am building.
I want to have the servos use different ...
0
votes
1
answer
113
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Serialise a struct containing a flexible array
I want to serialise and deserialise a struct containing a flexible array.
I did find a working code but wondering if it is the most elegant and optimum way to do it.
This is my first attempt below ...
- 155
1
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1
answer
75
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Connect ESP32-CAM to L293D
Disclaimer: I'm a programmer, not an electronics expert. I built this car using an Arduino Uno, and now I want to add a camera to it. I’ve tried researching online, but I couldn’t find much ...
- 11
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2
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106
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Trouble calibrating MMC5603 Magnetometer with MotionCal and Adafruit SensorLab – readings seem off
I'm trying to calibrate my MMC5603 magnetometer using MotionCal and the Adafruit SensorLab Jupyter notebook, but my readings seem off. The raw magnetometer values appear to be spread out oddly even ...
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