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Discussion Title Created date
coil with a core
Are these available commercially? It is like an induction coil with a core sticking out.  Do I have to make one myself? I have searched under coil, induction coil, inductor....
Sunday, 8 March 2015 - 18:03
how to switch a fuel injector
I want an off-the-shelf item to control a fuel injector, mainly because I cannot design one from scratch. I want to switch this controller with the output from an AVR. Will a...
Wednesday, 25 February 2015 - 16:22
debounce technique?
I want to debounce my input capture by alternately disabling interrupts but I am afraid of deadlock. I cannot use busy delays as in the tutorial. Can someone comment on this code...
Thursday, 27 May 2010 - 00:33
repurpose 8051 board
I know this is a long shot but I have a feature-rich AT89S52 development board on the shelf. I wonder if anyone has ever repurposed one of these to use a ATmega8515 chip. I know...
Monday, 24 May 2010 - 16:27
Queued interrupts
Is this code any good: ISR(TIMER1_OVF_vect) { for(uint8_t i = 0; i...
Thursday, 20 May 2010 - 13:38
Need to use both output compare channels
I have run out of timing options on a tiny2313. If I could use both output compare channels on Timer1 I might get by. I cannot find any example or post relating to using both...
Wednesday, 5 May 2010 - 16:55
functions are bad
I just rewrote a file that had one function in it other than main(). I noticed it wasn't repetitive code. I got rid of the function and just incorporated it all in main(). The...
Thursday, 29 April 2010 - 01:47
Bosch BIP373
Does anyone know of a common (Fairchild, National, IR) replacement for this component: http://www.diyautotune.com/tech_articles/using_bosch_bip373s_with_megasquirt.htm I think it...
Monday, 19 April 2010 - 22:54
Adding JTAG connector
I am putting a JTAG connector on a board which already has a functioning ISP connector. I am wondering if I have to disconnect the ground and Vcc from the chip to do this. Figure...
Saturday, 10 April 2010 - 14:28
make a #define or put in main()?
I just need a calculation done at compile time. It must be an integer division and I don't need the macro. Is it better to do this: #define POWER_L 0xeeee // sample values...
Wednesday, 7 April 2010 - 14:52
Input Capture help
I am trying to trigger an input capture on a mega16 with a PWM signal that varies between 2 Hz and 80 Hz. It looks like a very clean square wave on the scope. My debug LEDs look...
Monday, 5 April 2010 - 16:12
high bytes clearing unexpectedly
When I step out of the last line I find the high bytes of OCR1A and OCR1B have been cleared. uint16_t top = 0xffff; DDRB |= (1 << CT1B); // Set OCR1A (...
Saturday, 27 March 2010 - 20:38

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