How to learn AVR SCM

How to learn AVR SCM
http://www.siliconray.com/atmega128-mcu-starter-kits.html
Buy the AVR programming example book, and then download the PROTEUS software, building the lines, use the ICC AVR software programming, to read a book to learn good ah.
What kind of AVR tutorial? This is not the answer, if want to make sure a word, the proposal to see MaChao teachers write the AVR tutorial will do. Other tutorial is very much the same.
What kind of AVR development board? Now AVR development board is numberless as the sand, did not have a good, also not bad. I use of AVR development board is just a raises all the minimum port system board, using a well.
If you want to start to learn, that suggest the goal of the first put high some, namely the Atmega128 single-chip microcomputer chip choose AVR right, and the mastery, Atmega the eight series of single chip microcontroller even if mastered. Of course there are interested in learning to 16 of the single chip microcomputer AVR AtXmega or 32-bit AVR AVR32UC3 single chip microcomputer.

51 / AVR single-chip microcomputer with what good?

51 / AVR single-chip microcomputer with what good?
http://www.siliconray.com/arduino-pro-mini-with-atmega328p.html
I see taobao, at sixes and sevens, what minimum system ah, what download of the kind used these do not understand, want to buy a neat a piece of board good good study, please recommend, had better have followed the mark, the ultrasonic, wireless, remote control, infrared, human body detection, text display, steering gear control, some that all, thank you
The best answer the proposal with 06:55 51 series microcontroller, user huge, routines is rich, the example to learn range is very wide, and domestic STC series 51 SCM too fast, the same crystals, average speed can reach the original 8 to 10 times, and bring their own 8 and 10 AD, converting speed fast, a subtle can be completed all the way AD transform, serial communication baud rate I now work in 115200 is very normal. The most convenient is software can ?

AVR microcontroller simple problem

AVR microcontroller simple problem
http://www.siliconray.com/development-boards/avr.html
ADMUX
ADCSRA
See attached figure configuration
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ADMUX = (0 xc0 | adc_input); / / adc_input: difference channel x08 0 ~ 0 x1D / / 0 xc0: choose within 2.56 V reference voltage
ACSR = 0 x80; / / simulation comparator control and status register ACSR of ACD buy 1, so that the imitating comparator disabled
ADCSRA | = (1 < < ADSC); / / start AD transform
ADCSRA | = (1 < < ADIF); / / write 1 clear sign a

Below is a complete example of GCC
# include < avr/IO. H >
# include < avr/delay. H >
# include < avr/signal. H >
# include < avr/interrupt. H >
/ * macro INTERRUPT SIGNAL of usage with similar, SIGNAL difference lies in the execution of the trigger a global INTERRUPT cleared, other interrupts are banned INTERRUPT the execution of the global INTERRUPT trigger bit is set a, other interrupts can be nested hold another avr-libc offers two API used to buy a and reset global INTERRUPT triggered

A circuit diagram, LED low power consumption

A circuit diagram, LED low power consumption
http://www.siliconray.com/universal-toroid-transformer-for-tube-preamplifier.html
Low power consumption will be LED a circuit diagram four constant current source LED in series with the greatly reducing the waste of battery level. Circuit demonstrates how to counter to display with CMOS four binary digit of the technology.

GSM wireless intelligent monitoring design

GSM wireless intelligent monitoring design
http://www.siliconray.com/
1 introduction
Along with the rapid popularization of GSM network and mobile communication technology rapid development, new technology and new business development and application of the already mentioned very important position, using GSM network as a wireless intelligent monitoring system of information transmission platform is a very effective method.
This paper involves the intelligent monitoring module that is using GSM network of short news function and voice realize two-way data communication function, can be used for intelligent household monitoring, unattended equipment maintenance, remote information collection, industrial control equipment and long distance running state of the detection and control, etc.
2 intelligent surveillance system, overall design
The whole monitoring system by the GSM network, monitoring module and monitoring of the monitoring center or, system theory and as shown in figure 2.1.

Want to make low power radio transmitter and receiver

Want to make low power radio transmitter and receiver, let each master give directions, thank you!
http://www.siliconray.com/
This circuit is online, suggest an entry-level only do the transmitter, as long as a high frequency tube can be made into, choose ready-made FM radio receiver, about receiving distance in the 50 m or so.

For radio production-is a frequency can wireless received.

For radio production-is a frequency can wireless received.
If you want to make it clear principle, please reference "rf communications circuit", science press ChenBang-love
radio
Had better look "complex-variable function and Laplace transform, the signal and system" and "the analog electronic circuit of the book.
If just want to look at the circuit, natural, so or recommend you said above the first book, and there are each part of the detailed circuit diagram, detailed each transistor's parameters and to meet method.
There were very simple figure, such as block diagram.
If just close transmission, that used to build a tool called the spell circuit of the electronic world things (very old)... That it seems to have some simple version.