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site:edaboard.com gps google earth
Hi,
I have thought of an idea for tracking packages using GPS.My father owns a transport company and we are thinking of implementing it for our company.
Here is the idea( which i also sent to NASA design contest) with the block diagram-...
Hi,
I want to interface a GPS module which would be interfaced to atmega128 in a portable appplication.Can anybody tell me the source for these modules with antennas
preferrably in india(or they must ship to india).
The ones i found were at sparkfun(copernicus for $60 and lassen iq for $50)...
Thought of making a line following robot using a tiny13.I looked for sensor ckts on the net and found that most of them used a comparator between the uC and the sensor output.My query is when one is using a controller ,cant he utilise the adc of the(use two adc channels by switching them)...
switching mmc from avr to card reader
Atleast it is displaying "fat fs module test monitor" now
but there seems problem with the reading writing..have to debug it.
Anyways thanks a lot for yor help encrypted.Actually the only problem was that in linking all the files ,when i run the...
gcc atmega128 mmc
do we have to include those tiny fat files also ?
and we are using avr studio , so just dont know how to use makefile .
and what bout those fuse bits settings ?
elm-chan.org ata
You misunderstood me,i had connected pin no 2 but forgot to connect the 1.5 k resistor between max3232 and second pin of atmega128.Ya i have checked all the connections and i think max3232 is working all right as i am getting 3.3 v at the rxd and txd p ins of the atmega.
Yes...
atmega128 + mmc
Hi,
changed the` bit rate.
ya one more thing i forgot to connect the resistor at pin RX(pin no2) OF THE MEGA128.After i connected the resistor now random characters are not displayed instead nothing is beig displayed now not even the "fat module test monitor".
is. there any...
mmc to rs232
Anyways even if it is a switch i dont think if i dont use it it would matter as i have connected it directly to Vcc
i have removed the power on function from the code.(do i need to make any other changes in the code as i have not connected it)
And no ,i am using a 8mhz crystal...
how to make a mmc card socket
Hi encrypted ,thanks for your reply
Yes i did try 115200 baud 8N1.But no luck:cry:
One more thing can you put light on -In the original schematic that person has used a
switching regulator(as far as i figured it out ) containing a mosfet and inductor,caps but i...
Hi,
I am building a mmc card reader using the code and circuit provided at http://elm-chan.org/fsw/ff/00index_e.html in the samples section(avr)
I am using a ATmega128L and 3.38 V as power supply for both the mmc card and the atmega128l.
My doubt is that in the circuit given on the site they...
I had a query ...anyone has an idea what is the pin configuration of the BL-5C battery usually found in nokia cellphones.
It has three contacts- one each must be for positive supply and ground.Whats the third one for?is there a thermistor inside the battery and if yes to which pad is it...
What will be the output displayed on a DSO if the input waveform is a signal whose amplitude is decreasing with time and frequency increasing with time if
1.waveform is repetetive
2.it decays down to zero and is not repetetive.
i hope one can analyse the shape of the input signal( it is...
Regarding the second point ,the atmega128 can work between 2.7 -5.5v vcc.
But i could not understand your first point....can you please clarify it a little.
I am building a mmc reader using the code provided at
h**p://elm-chan.org/fsw/ff/00index_e.html
i have used the code from ffsample file.
the problem i am facing is that my whole circuit will be working on 3.3 v(both atmega 128 and the mmc card) but the max232 datsheet specifies that it can work...
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