Search found 6 matches

by ELMBONSAI
Sat Oct 12, 2002 11:42 pm
Forum: General Discussion
Topic: i need help with a Frequency formula
Replies: 3
Views: 832

i need help with a Frequency formula

Im desinging a curcuit that calls for oscillation and PWM so i decided to use the LM556, however the frequency (of oscillation) formula(s) i have, have left me scratching my head. One book says the formula is: 1.44/(Ra+2Rb)/Ct another book says its: 1.44/(RA+2Rb)Ct Which is it? do i divide or multip...
by ELMBONSAI
Wed Aug 28, 2002 4:48 pm
Forum: General Discussion
Topic: AVR instruction set
Replies: 0
Views: 632

AVR instruction set

Hay everyone;
Thanks to all who replied to my last topic:
Confused About AVR

Im having trouble learning the AVR Instruction Set, what tricks did everyone else use to learn it?
Thanks in advance
by ELMBONSAI
Thu Jul 18, 2002 7:41 pm
Forum: General Discussion
Topic: LM18245
Replies: 3
Views: 1165

Re: LM18245

hey Russ
the number is actually LMD1825
its a motor driver curcuit(H-bridge)
rated at 55V, 3A
by ELMBONSAI
Thu Jul 18, 2002 5:30 pm
Forum: General Discussion
Topic: Another ROV Question -Tilt
Replies: 7
Views: 1589

Re: Another ROV Question -Tilt

why dont you try something alittle more stable. no moving parts. The ADXL210 is a low cost, +/-10 g, dual-axis accelerometer with a digital output, all on a single monolithic IC. The ADXL210 will measure accelerations with a full-scale range of ±10g, making it suitable for tilt measurement. -from An...
by ELMBONSAI
Thu Jul 18, 2002 5:11 pm
Forum: General Discussion
Topic: LM18245
Replies: 3
Views: 1165

LM18245

Has anyone used this curcuit?
im interested in using it to run motorson an ROV(the thrusters) im building.
Can this curcuit be used "stand alone" or does it need to be used in conjunction eith a microcontroller?<p>im just curious as to what others think of this curcuit.
by ELMBONSAI
Fri Jul 05, 2002 11:39 am
Forum: General Discussion
Topic: Confused about AVR
Replies: 3
Views: 888

Confused about AVR

I recently became interested in Atmel's line of microcontrollers, i purchased "programming and customizing the AVR microcontroller." i could have found the same info on the Atmel website. Does anybody know of any "decent" books or websites on the AVR subject? any info would be greatly appreciated; o...