HT AVR

Started by Servo Kon in sci.electronics.design4 years ago
AVR

We are involved in manufacturing a wide range of HT Inbuilt AVR - Automatic Voltage Regulators. These regulators have helical coils mounted on a...

We are involved in manufacturing a wide range of HT Inbuilt AVR - Automatic Voltage Regulators. These regulators have helical coils mounted on a conventional laminated core. For more information visit on :http://www.ht-avr.com/


Denon AVR 1709 vs Denon AVR 1909

Started by Skybuck Flying in sci.electronics.design8 years ago 13 replies
AVR

Hello, The salesman offered me a discount on the AVR 1909 which he has "in store" literally lol... it's the display model. He offered me this...

Hello, The salesman offered me a discount on the AVR 1909 which he has "in store" literally lol... it's the display model. He offered me this deal... the model has been on in the store for a while I presume he claimed he never really used it or put it on... because he mostly used another receiver. Somebody else says that receivers usually fail in the first year... because component fa...


Denon AVR 1909 preliminary review ;)

Started by Skybuck Flying in sci.electronics.design8 years ago 19 replies
AVR

Ok, So far I listened to the Denon AVR 1909 with GigaWorks S700/S750 speakers... (Ext In. Analog, Out analog) It's night at the moment so...

Ok, So far I listened to the Denon AVR 1909 with GigaWorks S700/S750 speakers... (Ext In. Analog, Out analog) It's night at the moment so only softly. Only 5 speakers have been connected or are in use. The 6th is connected by not using it for now. Still need cable for the 7th. (Also no subwoofer present) When the volume is medium to loud the AVR 1909 probably gives good sound...


avr-gcc floating point problems

Started by linnix in sci.electronics.design7 years ago 60 replies
AVR

In response to another thread, I am still getting these problems with WinAVR 2010. I think the linker is hitting some AVR limits. There are...

In response to another thread, I am still getting these problems with WinAVR 2010. I think the linker is hitting some AVR limits. There are similar reports on the web as well. ------------------------------------------------------------------------------------------------ - unsigned char u; float f; u = (unsigned char) f; --------------------------------------------------------------


Atmel AVR development tools

Started by dbvanhorn in sci.electronics.design9 years ago 32 replies

Frustrated, not knowing where to turn with this. I love the AVR processors. Very clean internally, nice to write code for. But, I am on...

Frustrated, not knowing where to turn with this. I love the AVR processors. Very clean internally, nice to write code for. But, I am on the edge of dumping them due to severe problems with their dev tools. Some people seem to have no trouble with them, but I've been having problems for years, which are inconsistent, unreproducable, and totally productivity destroying when they happ...


Cheap AVR development board

Started by Ivan Matacic in sci.electronics.design9 years ago 3 replies
AVR

I would like to start with Atmel AVR's, so I need some cheap development board. Something like...

I would like to start with Atmel AVR's, so I need some cheap development board. Something like this: http://www.futurlec.com/ATMEGA8535_Educational_Board.shtml, max 100 USD. Do you have any recomendation? -- www.elektronka.com


AVR w/ asynchronous counter?

Started by frank in sci.electronics.design10 months ago 11 replies

Hi all, I'd like to make a very simple frequency counter (should be single chip ideally), let's say to max 25 MHz more or less, 6 digits...

Hi all, I'd like to make a very simple frequency counter (should be single chip ideally), let's say to max 25 MHz more or less, 6 digits resolution. A PIC microcontroller, using an internal counter with asynchronous external clock is one possible solution. However, I would greatly prefer to use an AVR microcontroller here as I already have lots of code and experience with them. On the se...


Tiny AVR

Started by linnix in sci.electronics.design5 years ago 30 replies
AVR

We need a small chip with absolutely lowest power, so for the attiny4: Top of the spec stated 200uA at 1MHz, but nothing about...

We need a small chip with absolutely lowest power, so for the attiny4: Top of the spec stated 200uA at 1MHz, but nothing about 125KHz. Bottom of the spec has some chart of around 30uA at 125KHz. Can this be trusted? If so, why don't they say so at the top? I would think that's an important marketing data. Can it run at 32KHz like some other AVR chips? Anyone with real experiences?...


ESD protection for microcontroller pin that is to be touched

Started by Rene in sci.electronics.design5 years ago 26 replies

Hi! I am designing a touch sensor on an AVR micocontroller. I have been working on the Qtouch library for days now but with no luck, there is...

Hi! I am designing a touch sensor on an AVR micocontroller. I have been working on the Qtouch library for days now but with no luck, there is nothing to be seen on the pins with the scope after flashing a sample program into the mcu. It has been a big PITA to even get the program to compile because the samples are made for AVR studio and Qtouch studio which are windows-only and I use ...


A $5 Arduino?!!

Started by Anonymous Remailer (austria) in sci.electronics.design4 years ago 5 replies

http://www.indiegogo.com/projects/iteaduino-lite-most-inexpensive-full-sized-arduino-derivative- board At first I was presently surprised...

http://www.indiegogo.com/projects/iteaduino-lite-most-inexpensive-full-sized-arduino-derivative- board At first I was presently surprised but after a while I started to wonder. Knowing that the cheapest AVR device costs about $3-$5 I started to investigate how they could build a complete board with MPU for $5 including shipping. It turns out the Chinese have CLONED the Atmel AVR process


PIC/AVR internal RC oscillator stability

Started by Anonymous in sci.electronics.design9 years ago 7 replies

The datasheets I read on the PIC MCU says the precision is 2% for most common voltage and temperature ranges (and 1% for the sweet spot). I...

The datasheets I read on the PIC MCU says the precision is 2% for most common voltage and temperature ranges (and 1% for the sweet spot). I assume the AVR MCUs have similar characteristics. This should mean that for say 10 clock periods at 4 MHz the period would vary between 2450 - 2550 ns? Is the stability higher for a shorter timescope wherein the temperature and voltage should not hav...


Re: Battery Charger Design

Started by JosephKK in sci.electronics.design8 years ago

On Wed, 06 Jan 2010 07:15:22 -0800, mike wrote: > thorin92 wrote: > > In the application, the output of the battery is regulated by an...

On Wed, 06 Jan 2010 07:15:22 -0800, mike wrote: > thorin92 wrote: > > In the application, the output of the battery is regulated by an LDO > > Voltage Regulator before powering the AVR, so the AVR supply is of no > > concern. > > =20 > > The DC supply for the charger will be heavily filtered and regulated, > > powered from a mains transformer. > > =20 > > I do not wish to use an A


Pictures of Denon AVR 1909, 7.1 Surround Sound Receiver now available ! ;) :)

Started by Skybuck Flying in sci.electronics.design8 years ago 3 replies
AVR

Hello People, Some time ago I bought a nice Denon AVR 1909, 7.1 Surround Sound Receiver. I took some pictures of it... after I bought it......

Hello People, Some time ago I bought a nice Denon AVR 1909, 7.1 Surround Sound Receiver. I took some pictures of it... after I bought it... I also opened it to investigate it... I also took pictures of cables and my pc... and there is one funny picture of my "box shack" lol.. where I store all my PC related boxes... in case anything needs to go back sometime ;) :P ;) The pictures ca...


HT AVR

Started by Servo Kon in sci.electronics.design5 years ago
AVR

HV AVR comes single phase or three phase. If the power supply is single phase then the choice is obvious but if it is three phase then you have...

HV AVR comes single phase or three phase. If the power supply is single phase then the choice is obvious but if it is three phase then you have to tell to your stabilizer that you are connecting it to single phase or three phase power supply. The advantage of this option is that a three phase stabilizer serves the purpose of two stabilizers simultaneously. To know more about us please visi...


Denon Receiver AVR 1909 seems to loose "volume/power/wattage" when using headphones ?!?

Started by Skybuck Flying in sci.electronics.design7 years ago 10 replies
AVR

Hello, The Denon AVR 1909 seems to loose "volume/power/wattage" when my headphone is plugged in... The "hole" where the plug goes is a big...

Hello, The Denon AVR 1909 seems to loose "volume/power/wattage" when my headphone is plugged in... The "hole" where the plug goes is a big one... so I need to use an extension plug... which goes from the little PC headphone like plug to a bigger plug... It am not sure if that is the cause of it... it seems like it... But it could also be the denon having issue's with headphones ?...


Optically connecting (pc) motherboard to receiver (7.1)

Started by Skybuck Flying in sci.electronics.design6 years ago 2 replies
AVR

Hello, The following motherboard has an optical out: ASRock 939A790GMH, link to...

Hello, The following motherboard has an optical out: ASRock 939A790GMH, link to manual: http://europe.asrock.com/downloadsite/manual/939A790GMH.pdf The following receiver has an optical in: Denon AVR 1909, link to manual: http://usa.denon.com/DocumentMaster/US/AVR-1909-OM-E_202A.pdf It seems the receiver manual does not explain how to use optical connections or what they are ...


please help

Started by hossam in sci.electronics.design9 years ago 1 reply
AVR

Dear,members i need this e-book in english version the book name is : embedded c programming and the atmel avr regards, hossam

Dear,members i need this e-book in english version the book name is : embedded c programming and the atmel avr regards, hossam


How can it work?

Started by Piotr Wyderski in sci.electronics.design1 year ago

http://scanlime.org/2008/09/using-an-avr-as-an-rfid-tag/ The hacks are described, but the question is: why there is no MCU latch-up when any...

http://scanlime.org/2008/09/using-an-avr-as-an-rfid-tag/ The hacks are described, but the question is: why there is no MCU latch-up when any of the ends of the coil connected to the clock pins goes below GND? Best regards, Piotr


looking for ASKIR chip

Started by TTman in sci.electronics.design5 years ago 1 reply
AVR

I've seen the CS 8130 chip, but it's expensive. Anyone know of an alternative ? I'm looking for receive only,(if it exists) 500kHz nom.mod. Tx...

I've seen the CS 8130 chip, but it's expensive. Anyone know of an alternative ? I'm looking for receive only,(if it exists) 500kHz nom.mod. Tx is easy with an AVR.... Rx not so easy. TIA


uP hobbyist kits

Started by JosephKK in sci.electronics.design7 years ago 11 replies

I am looking for enough kit to do maybe two or three projects for PIC and= AVR. =20 Target price, about $100 for each vendor. Works in Linux...

I am looking for enough kit to do maybe two or three projects for PIC and= AVR. =20 Target price, about $100 for each vendor. Works in Linux or Linux/wine = preferred. Also some small LCD displays if not included. I can go higher $ but = prefer not to.