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I propose a simple DeBounce routine
I believe that you mean encoder switches;  digital pots are output devices.    If you are using an inexpensive encoder, for example one that costs less than $2,...
Tuesday, 21 December 2021 - 01:45
become a pro in embedded systems for just $6
There are two basic approaches to education:   The first is the traditional way.  The student enrolls in a school, buys the recommended textbook, and attends sessions...
Monday, 20 December 2021 - 18:34
Chip Suggestion for Square Wave Generation
At the low frequencies that are spec'ed here, you could do it with a megaAVR and a crystal - based clock.   It's a lot of work to get the timers and frequencies exactly...
Friday, 17 December 2021 - 20:56
cp2102 powering MCU
  Is this what you have?  A diagram helps. Is the TXD of the 2102 providing Vdd to the Mega8 when the Mega8 is powered down (and the 2102 is on)?  Try putting a...
Wednesday, 15 December 2021 - 20:57
ATmega32U4 on LORA RA-01 (SX1278)
The 'sandeepmistry' documentation on GitHub has " NSS, NRESET, and DIO0 pins can be changed by using LoRa.setPins(ss, reset, dio0). DIO0 pin is optional, it is only needed for...
Monday, 13 December 2021 - 20:24
passing PORT to subroutine
I suggest that it would be better time spent to not develop the code for an 'xx(PORTB,PB1);' function, and instead simply adding all of the possible variations that you would be...
Sunday, 12 December 2021 - 21:48
HELP whit multiple ADC channel
You should not do lots of activity (like a switch statement that does an ADC conversion) in a ISR function.     The ADC doesn't seem to have a means to start a new...
Saturday, 11 December 2021 - 23:49
Arduino Nano slow timer
Arduino Nano uses timer0 to make a 1 millisecond reference counter.  The function millis() will return an unsigned long value that is the number of milliseconds since the...
Saturday, 11 December 2021 - 23:19
How to build a timer for controlling the auger on a pellet stove?
I suggest to not use low-capacity AVRs or PICs.  Use instead an Arduino Nano or UNO clone for a hardware platform. Download the free Arduino IDE and use it instead of Bascom...
Saturday, 11 December 2021 - 00:19
playing with a track ball encoder but X axis is wrong
If your A1A comparator was not working, then the 4013 would be clocking the same data through the flip-flop regardless of the logic signal that was being sent by the top opto-...
Sunday, 5 December 2021 - 18:51
ATTINY in SOIC package with AVCC
Bend all the pins on one side of your mega168 DIP package 90 degrees.   Now your DIP will fit in one row of 14 0.1" via-holes on your PCB board. For the other side of...
Saturday, 4 December 2021 - 16:29
Hacking/Enhancing a driveway sensor alarm
A motion sensor (that can track movement up to 40 feet away) is connected to a 450KHz signal that can transmit up to about 500 feet (to 1/4 mile, depending on the model). ...
Tuesday, 30 November 2021 - 18:46

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