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Problem with displaying reading from DHT22 using Atmega32A
You may be using an outdated version of the DHT.h library.   Or the DHT22 device is wired wrong.  Or there is no 10K pull-up resistor between the DHT22 data pin and...
Monday, 23 March 2020 - 15:15
shift register and 7-segment-display
You have two sections: one is to create a matrix of the LED segment on/off states for each digit, and the other is to deliver this matrix to the 7-segment device using a hardware...
Sunday, 22 March 2020 - 15:39
Do you have experience in device driver development
"Device drivers" are the code pieces that connect a physical device to the operating system of the PC.  If people are actually looking for someone to do this for them, and...
Sunday, 22 March 2020 - 15:18
pushbutton code does not work ........AVR DISCUSSION
I have no idea of what the problem in your code is except that it is not written for Arduino, which should be used by all students before "normal" C or C++.   However, I...
Sunday, 22 March 2020 - 14:13
Why dont we as AVRFREAKS have our own CodeWizardAVR ?
We have Arduino.  Arduino incorporates open-source code and cheap mass-manufactured hardware module boards to meet all the needs of embedded-system development except post-...
Saturday, 21 March 2020 - 15:56
How to use light_ws2812 in C++
I use "high-level" in this case as a synonym for advanced as in requiring a high level of technical knowledge as opposed to "high level" being a technical classification of the...
Saturday, 21 March 2020 - 15:27
Arduino Mega 2560 Serial Communication Problem Atmel Studio
Well, I'm amazed that the sketch works, because I was using it as an example of the ease of writing Ard code.  The Mega LED is on D13.  Try: if (Serial.available...
Saturday, 21 March 2020 - 15:19
Arduino Mega 2560 Serial Communication Problem Atmel Studio
If you have an Arduino Mega, what happens when you test the USART using Arduino IDE, Arduino libraries, and Arduino serial code?   void setup() {    Serial.begin(...
Saturday, 21 March 2020 - 01:07
How to use light_ws2812 in C++
WS2812 interfacing is high-level programming for the AVR.  It often involves in-line assembler.    Can you describe your hardware platform and your level of...
Saturday, 21 March 2020 - 00:40
Arduino support for RTC RX8010
I looked at the datasheets/application manual for this IC.   Typically poorly organized and incomprehensible to non-professional electronics engineers.   The...
Friday, 20 March 2020 - 13:32
how use CodeVision CodeWizard for USART Interrupts
The generated code won't work for the Transmit interrupt,   TX IRQs happen when the transmit shift register is empty,  which is whenever data is not being sent...
Thursday, 19 March 2020 - 14:59
Fuse bits changed for CKSEL, AVR not responding with 16MHz crystal
Are you writing source code and cross-compiling it (for AVR) on the Orange PI PC?  And then using a DIY AVR programmer that toggles the GPIO pins on the PI to load the binary...
Thursday, 19 March 2020 - 14:27

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