Post Created date
Atmega324P timer interrupt is delayed by mainloop
This may be a silly question but why are you using a timer interrupt to generate PWM instead of using the hardware generated PWM?  This should be totally stable regardless of...
Monday, 12 June 2017 - 09:39
Servo Control by 8-bit timer
I think you are getting interference from the mini figures ray gun ;-)
Sunday, 28 May 2017 - 17:37
Why does INT0_handler fire twice?
one other major advantage of using #define to set these values as constants rather than hard coding them is the ability to make changes more reliably   for example if you...
Wednesday, 24 May 2017 - 10:10
david.prentice wrote:Untested. No, I can't see why you have a SLAVE address on an SPI device. Surely that is what the CS (Chip-Select) does.   my guess is it is because there...
Friday, 19 May 2017 - 08:35
Dual slave and master I2C capability
denis1226 wrote: The calibration data is to be written to the EEPROM during board testing after the micro-controller has been programmed. why not simply use ISP(I assume the...
Tuesday, 16 May 2017 - 16:49
Old Chips. Any Value?
Don't bin them   I am also I SE England, I am sure I could cover postage & probably a small reasonable donation to your beer fund :-)   I probably have enough AVR's...
Monday, 15 May 2017 - 12:24
AVR DTMF Generation
Also if you are trying to send DTMF* you need to be able to send 2 frequencies & mix them (or mix them in software) so I am not sure that PWM is goint to work for you here....
Wednesday, 3 May 2017 - 11:18
Need ideas for setting timing between two Tiny84 devices
If you cannot get a physical synchronisation signal to both devices then you will always have some drift, how critical that is will depend on how long the devices will be in...
Tuesday, 2 May 2017 - 11:56
Need ideas for setting timing between two Tiny84 devices
even using crystals will have a small frequency error between the two devices, it will just take longer to notice.   the only way to 100% sync any devices is to have a common...
Tuesday, 2 May 2017 - 08:16
Data signals in the power lines
it doesn't even have to be a radio frequency.   Google DCC & see how that operates as an example,  where the digital commands for a train are encoded in the power...
Saturday, 8 April 2017 - 17:59
Output is inverted?
1 advantage of the Active low structure is you can have multiple open collector devices connected any of which can activate the signal.  as a practical example you could have...
Sunday, 26 March 2017 - 15:35
Quarts for ATtiny 4800 baud serial communication
4800 baud is not terribly fast & async serial has a reasonable error tolerance   if you use a clock speed that divides exactly to 4800 baud then the oscillator tolerances...
Monday, 27 February 2017 - 16:58