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automotive lc filter
I am planning on building a filter/regulator in preparation for my project car. I am still in its first stage, which is constructing a filter/regulator, or voltage stabilizer for my car's electronics.
There are already a lot who have added a set of parallel...
74hc07 pic programer
it would still use all three transistors and would employ additional diodes...
referring to the schematic on the site... i had these thoughts... please comment on them...
- i will only use one transistor for vpp
- transistor networks of t4 and t3 would be eliminated...
propic2 is a good pic programmer. i have one made in a point-to-point wiring and its works great. the problem here is that it is not icsp yet. you have to program the pic the old-school way of remove it from the target app and place it in the programmer.
in the propic2...
the propic 2 (gold or not) does not do icsp. programming takes place the old school way - remove the chip, place it in the programmer and burn. the propic 2 icsp is obviously icsp capable - and it has NO sockets unlike the previous one.
the chipest microcontroller
price is dependent on several aspects.... among these very complicated dependencies is the dealer/source where you would purchase the device, another is the manner of purchasing, another is the brand, etc....
in my case i choose a microcontroller depending primarily...
at89s52 programmer max232
it would depend on the software.
however, if you want to have a max232 to program an 8051 family uC, then go for ds87c420/430/440/450. the process if fully discussed in the ultra-high-speed micrcontroller user guide in maxim/dallas website. they also offer a freely...
at89sxx download cable circuit
what's the real at89isp cable???
or this one:
:?: :?: :?:
if you look very closely at the connections for the header...
that's strange... (or is it just me) the equivalent of "A" in ascii is 0x41 right? 65 is decimal. does that mean hyperterm sends decimal values and not hex?
i don't need to wrap it up, since it would cost additional instructions. all i am after right now is the direct...
do you still have the link available? i can't find the 8051 monitor program in intel website
would it make any difference if i would use hyperterminal? as much as possible i would rather not go about doing another application to drive the uC operation since i am targeting...
hyperterminal hex commands
i wanted to control something through 8051 by interfacing it to my pc through hyperterminal. a simple diagram is shown:
PC(hyperterminal) <----> 8051 <----> [something to be controlled]
actually what i am after is the interface between PC & 8051. the...
i have read the icsp guide in the microchip website (https://ww1.microchip.com/downloads/en/DeviceDoc/30277d.pdf)
i focused on the 16f8x programming. there is a circuit at the bottom of page 2-21 (figure 1: typical application circuit). i am very noob in icsp/isp and i would like to...
i would like to ask what kind of circuit would produce such a response?
- a sinewave with a varying amplitude directly proportional to the frequency. maximum pk is 3v and max freq is 500hz
- a square wave with a V-hi of 5V and V-low of 0V and a max freq of 500hz
- a square wave...