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Vintage AT89/90 starter kit just listed on ebay
Now that the AVR is old enough to consume intoxicants in public places, I'd like to compare the first development kit to its modern low-end equivalents: the USBasp and the Arduino...
Friday, 13 August 2021 - 16:11
Bridge rectifiers
I recommend getting either a standard cheap phone charger (mains to +5V) or one of these solar panel chargers:   220VAC lines/mains...
Friday, 13 August 2021 - 15:12
When a button is pressed, how long is it typically held down? (debouncing question)
Try  putting a delay statement [ like _delay_ms(200); ] inside of the for(;;) loop that is found in main().
Wednesday, 11 August 2021 - 21:36
When a button is pressed, how long is it typically held down? (debouncing question)
I re-wrote your code in Arduino so that I could understand it.  And added a few changes like adding breaks to the keypad read routine. I don't see any reason why it shouldn't...
Wednesday, 11 August 2021 - 15:45
your all wired up.
I recommend instead this assortment of colors for 30AWG (American Wire Gauge) wrapping wire:   I use this stuff every day. ...
Tuesday, 10 August 2021 - 20:58
avrdude.exe: can't open input file ..... No such file or directory PROBLEM
If you are trying to upload your code to Arduino, then I suggest that you use Arduino's IDE to upload your code.  It's the easy way to do things for beginners.  AVR...
Friday, 6 August 2021 - 14:39
interfacing dht11 to ICP1 pin
  The DHT11 interface has this process interpreted from its data sheet           sbit(DDRB,0);    // Master controls  data...
Thursday, 5 August 2021 - 16:21
Tips for learning avr programming
Before getting into the details about the advantages of one type of programming versus another (such as C vs. assembler), you should ask more general questions:   ...
Monday, 2 August 2021 - 15:29
Tips for learning avr programming
I suggest getting a kit of common sensors like this one: Then, for each interesting sensor, download one or more of the Arduino libraries...
Monday, 2 August 2021 - 00:35
Help me interpret this data sheet for an ILI9341 LCD
TFT displays have a start column and end column in one command and a start row and ending row in a second command.  There is a third command that determines in which...
Friday, 30 July 2021 - 18:21
USBASP Arduino ide, ports greyed out.
I use Arduino with a USBasp to program an ATtiny1634 with Windows 10.   I compile the code with Tiny Core, selected board: ATtiny1634_no bootloader using the Arduino...
Friday, 30 July 2021 - 02:15
Split from: Pin configuration
Arduino was designed to be the standardized hardware component of a general-purpose academic training tool (called "Processing") used to link stand-alone microcontrollers to a PC...
Tuesday, 27 July 2021 - 17:40