USB AUX MP3 adapter into a CD changer connector. Listen to MP3 on CD Magnitolet. ISO Plutcher Motor Motor Motor Connector SD Connector

In devices on microcontrollers for storing large amounts of data, external memory is used. If you want to store megabyte units, then the sequential flash memory chips are suitable. However, for large volumes (dozens of six megabytes), some memory cards usually apply. At the moment, SD and MicroSD cards received the greatest distribution, I would like to talk about the materials in a series of materials. In this article, we will talk about connecting SD cards to a microcontroller, and in the following we will deal with how to read or write data on them.

SD and MicroSD cards

SD cards can work in two modes - SD and SPI. Assigning map conclusions and a connection diagram depends on the mode used. In 8-bit microcontrollers, AVR has no SD mode hardware support, so cards with them are usually used in SPI mode. In 32-bit microcontrollers on the ARM kernel, for example AT91SAM3, the interface for working with cards in SD mode is there, so you can use any mode of operation.

Purpose of SD Card Contacts in SD mode

Assigning SD Card Contacts in SPI mode

Purpose MICROSD Card Contacts in SD mode

MICROSD Card Contacts Assignment in SPI mode

Connecting SD and MicroSD cards to microcontroller in SPI mode

The SD card voltage is 2.7 - 3.3 V. If the microcontroller used is powered by the same voltage, then the SD can be connected to the microcontroller directly. Raiso right scheme drawn up by studying specifications on SD cards and diagrams of various debugboards, is shown in the figure below. According to such a diagram, maps are connected to debug boards of OLIMEX and ATMEL.

The scheme indicates that the sd conclusions are indicated, and not the connector.

L1 - Ferrit or throttle, designed for current\u003e 100 mA. Some put it, some do without it. But what really should not be neglected, it is a polar capacitor C2. Because when the map is connected, the current is shown, the supply voltage "deals" and the microcontroller may take place.

For tightening resistors there are some ambiguity. Since SD cards are manufactured by several manufacturers, there are several specifications on them. In some documents, the need for tightening resistors is clearly indicated (even for unused lines - 8, 9), there are no these instructions in other documents (or I did not find).

A simplified schema option (without pull-up resistors) is shown in the figure below. This scheme is checked in practice and is used in Microelectronika fees. It is also used in many amateur projects that can be found online.

Here the SD signal lines are held in a high condition microcontroller, and unused lines (8, 9) are not connected anywhere. In theory, they must be touched inside the SD card. Next, I will be repelled from this scheme.

If the microcontroller is powered by a voltage different from the SD card voltage, for example 5 V, then you need to agree on logical levels. The scheme below shows an example of matching the card levels and a microcontroller using voltage dividers. The principle of coordination of the levels is simple - you need from 5-volts to get 3.0 - 3.2 V.

The MISO - DO line does not contain a voltage divider, as the data on it is transmitted from the SD card to the microcontroller, but to protect against fool, you can add a similar voltage divider and there, it will not affect the operation of the circuit.

If used to match the levels of a buffer chip, such as CD4050 or 74AHC125, these drawbacks can be avoided. Below is a diagram in which the level matching is performed using a microcircuit 4050. This chip is 6 unconverting buffers. Unused chip buffers "Pushed".

Connecting MicroSD cards is similar, only they have a slightly different numbering of contacts. I will give only one scheme.

In the diagrams, I considered the connection of SD cards to the microcontroller directly - without connectors. In practice, of course, without them can not do. There are several types of connectors and they differ slightly from each other. As a rule, the connectors' outputs repeat the sd conclusions of the Card and also contain several additional - two outputs for detecting a card in the connector and two outputs to determine the record lock. Electrically, these conclusions with an SD card are not connected and can not be connected. However, if they are needed, they can be connected as a normal clock button - one output to the ground, the other through the resistor to the power plus. Or instead of an external resistor, use the tightening microcontroller resistor.

Connecting SD and MicroSD cards to microcontroller in SD mode

Well, for the completeness of the picture, I will give a scheme for connecting an SD card in its native mode. It allows you to exchange data at greater speed than the SPI mode. However, the hardware interface for working with the card in SD mode is not all microcontrollers. For example, Atmel'ovsky ARM microcontrollers SAM3 / SAM4 is there.

Data data bus can be used in 1 bit or 4-bit modes.

To be continued...

The OPEL car recorder is required if you need to perform an independent connection of the device. The owners of this German car are either solved on the replacement of a regular head unit for modernization purposes, or it fails and has to change it.
A large number of automagnets Opel, the pinout of which will be presented in the article, are made very high quality, but they often meet and fake.

Problems that can be encountered

In the process of replacing the car radio, you can face with the common problems on Opel Astra and other models of "German":

• The header loses all the settings after the ignition key is taken out. This problem is very unpleasant and none of the drivers would like to encounter her;
• Radio channels, including the most powerful and popular, car accidents, but with interference;
• Half devices have the ability to display a date and number on the display, this function is blocked and does not work.

Note. In addition, in the process of replacing the standard apparatus on Opel, there may be a problem with ISO, which is simply cut off from the former owner or missing for any other reasons.

ISO Opel Pickup and Connection

Below are the ISO pinout on one of the popular car radio installed on Opell Opel. This Denver CAD350 is a non-standard model, but quite often purchased.

Note. For example, automagnets of the Bulupunct Car300, Philips Car400 and others are considered standard for Opel.

As we see in the diagram above, only 4 inputs are needed to connect.
They are indicated by color in the photo and, accordingly, are indicated by numbers:

• Figure 4 - permanent current, usually yellow cable;
• 5 is either backlight, or an antenna amplifier - more often wire blue;
• 8 - minus, mass, land - black;
• 7 - ACC, the key, the position at which the current 12 V is only when the key turn is red.

The same ISO connector has Opel, but may differ in the values. For this reason, carrying out independent in the machine, not necessarily Opel, always need to check the conformity of the connectors to avoid problems.

Note. In particular, if you do not check the configuration of the connectors, then the chance to face the problem of loss of automagnetic settings when the key is rotated 100%. And the reason is simple: places are confused by the wires of permanent nutrition. As you can see below and above in the photo, they are different colors and go to different contacts.

On standard radio tape recorders, such as blupunct or other, ISO pinout looks like this:

• 4 - ACC, the key, the position in which the current 12 V is only when the key is rotated - red thin;
• 5 - antenna amplifier - red-white;
• 7 - permanent current, red cable thick;
• 8 - minus, mass, earth - brown.

The remaining wires and connectors (see) are marked in the photo.

Original connection method

So, if a replacement is carried out, then this inconsistency must be taken into account. By the way, if the previously installed car accidents suffers from the problem of failure of settings, then by throwing places 4 and 7, you can solve it.
You can even solve once and forever the problem with the key by connecting. For example, many drivers know the situation when they listen to favorite music, the car stops, take out the key from the lock and the melody sharply breaks sharply. Unpleasant - not the word!
The problem is solved simply, as in an informant movie: the red wire is snacking, the one that feeds on the lock feeds. And in this case it looks like this in the cars Opel Astra or Omega:

Thus, the instructions for Opel car radio, useful thematic videos, various schemes will be a driver that connects with your own hands only in plus. The price of automagnetol on Opel is different. Today they produce a lot of expensive models and budget.

Message from (VS)

and the reference is broken;)

I tried again, it opens ....
Here is one more ....

Here is a more complete info:

And I've caught up, but something is confused by simplicity:
I have long wanted to listen to mp3 drives in the car.

Thoughts came to mind from listening to headphones from a portable player (what nonsense!) Before installing MP3 magnetic instead of available. Cheap MP3 Magnitol did not want, good too road.

It was decided to leave Pioneer DEH P6000R in place and connect to the linear entrance is excellent in my opinion the player I-River. Little difficulty consisted in the absence of a standard linear entrance.
I learned from the conference (the search rules!) About www.erta.ru, stopped the need to embed an additional fee in the radio. Well, the price of 50 ya seemed high. The question of the organization of linear entrance on pioneers was interested in many. With difficulty in the internet, I found a description of the IP-Bus tire, according to which the head communicates with Chenger and other devices. On 7, 9, 10 and 11 connectors of this tire, you can make a linear input. Experience has shown that many IP-BUS studies refused to discuss this tire - http://civic.phazer.org/carmp3/, in addition sites (www.mp3car.com/usersites/arby/Installation.html For example) containing information about The use of this tire turned out to be closed ((if you find this site - please inform.

In addition to self-making linear login, it was possible to use the finished device:
Pioneer CD-RB10 AUXILIARY INPUT - $ 30
http://photofile.ru/default/do?sp\u003d23621&sn\u003d&id\u003d455263
or
Precision Interface ELECTRONICS PIO / P-RCA - $ 20
http://photofile.ru/default/do?sp\u003d23621&sn\u003d&id\u003d455236
However, in our Russian realities, the price has grown 2-3 times,
with the condition to deliver prepaid in a month

In general, it was decided not to bind to original devices, but to make it yourself.
Pioneer IP-Bus RCA ADAPTER CD-RB20 Scheme http://photofile.ru/default/do?sp\u003d23621&sn\u003d&id\u003d455310 was found on the site http://pes.homeip.net/, it turned out to be useful from a cognitive point vision, but useless for further experiments. There was no task to repeat. And searches on the Internet continued ...
The pinout of the IP-Bus connector (http://photofile.ru/default/do?sp\u003d23621&sn\u003d&id\u003d455322) was discovered on the site http://www.mygizmos.net/frames/hardw...rhardware.html
A more clearly connector http://photofile.ru/default/do?sp\u003d23621&sn\u003d&id\u003d455549 was presented on the site http://www.kisselev.narod.ru/jack.html

Suitable to the IP-BUS connector (http://photofile.ru/default/do?sp\u003d23621&sn\u003d&id\u003d455577) in chip and dip was not. Cable is worth (http://www.buy.com/retail/product.as..09705&loc\u003d111) no less than the CD-RB10 adapter, there was no meaning to buy a cable for one connector.

Poor mouse.
To get the connector was dispersed old, a completely efficient mouse for the COM port. She sacrificed her tail for the sake of the right thing. COM connector was squeezed by a knife. Such knives with the saw blade on 10p at the metro are sold and live from strength a month, I didn't require much from him. As a result, I received 4 contacts - too large for IP-Bus response contacts, so they were compressed by passatages, after which they were embraced about contact with effort.

Due to the absence of audio wire (two-tier shielded), a mouse cable was used to which on one side soldered tuned connectors, and on the other jack 3.5mm. Jack was bought on the eve of 5 rubles.

Carefully connected the appropriate contacts, isolated them from each other with pieces of plastic.

While she was in the parking lot checked everything I did everything correctly, did not forget anything.
Magnitol in its place, a new linear input cable dangles in a glove compartment, a linear input through the Magnetic system menu, an additional AUX source appeared, the i-RVER mp3 player is connected to the cable. Well, the responsible moment. I turn on the player - and I enjoy the sound !!!

Everything has earned the first time. The quality is not different from the CD, despite the fact that not shielded wire long 1 meter is used.

Additionally: I found a description of Pioneer DEH 6100 7100 http://www.neknn.ru/instructor/uploa...-7100_6100.pdf
Instead of the puller, used a suitable strip from a metal clamp (purchased for 20r)

TOTAL. Costs of 5 rubles per Jack, 2-3 hours for the manufacture of cable and removal of the radio tape recorder. About the week to find information.

I am the owner of the Mazda car 2,2004, but with the right steering wheel (Singapore version).
Equipment provides a magnetic with 6 CD discs.

After buying a car, I purchased a FM transmitter, then another one, but he burned the same as the first - saying Bach, exhausing the smoke and the bay screen black ....

In the last couple of years he listened to the radio. When travel away from the city, where the radio waves of two areas were mixed, included the FM transmitter in the navigator.

It has long been looking towards Yatour, but I didn't want to give $ 50.

A couple of years ago, adapters came across Aliexpress, but they were not much cheaper.
In the summer, the seller from the Hongjun Nie store "S Store, owed me $ 10. And asked to choose the goods for this amount.
I rang this adapter, paying $ 6, that is, it cost 16 $.

I wrote to the seller what is my car, and he pointed out which adapter I need. But later asked to send a photo of the plug, saying that they were different.


The parcel came to Belgorod for 20 days.
The box was the adapter and the cartrider.




From the discussion on Mazda, Demio Club, I learned that jumpers will need to solder on the board of the radio.
Before removing the radio, I decided to check, suddenly the Japanese attacked the jumpers for Singapore? Maybe earn without a dope?
Model Magnitoles


But the miracle did not happen - the radio did not see the device ...
I had to solder 9 of 11 jumpers.
Creation, with "snot", but soldered.


The next day I connected the adapter, pressed the CD button - the light bulb on the adapter lit up, the track time went, but there was no sound.


Running the forum, I found a mention of condensers and resistors that may not be.
After breaking the second time, I found the absence of 8 elements.
Taking a fee, I went to the radio station. There, the uncle of the retirement age is long tortured me what you need to do, whether these elements stood earlier on the board, why should I? And suddenly he told me: I won't do it, I think it is not necessary, it will not change anything.))) What I explained to him that his work is not to think, but soldering the details ...
I received a refusal and in the "repair of phones" and in the "repair of computers".
Bought SMD393 resistors, SMD 16V 4.7MFU capacitors and flux.
I went home and after half an hour everything soldered.
Creation, with "snot", but soldered. (Photo of "Works" I'm laughing)
I connected everything to the machine, pressed the CD button, the light bulb was lit on the adapter, the track time went on the screen, the sound went.


When connected to the phone, the adapter works as AUX. When the flash drive is connected, the adapter cuts off AUX and starts playing music from the flash drive.
You can create folders CD1, CD2 ... My radio tape recorder sees 6 disks.
You can throw music without folders.
The folder displays 99 tracks, the following reproduces, but writes No.99.
Flash in 16g reads.
Buttons on the steering wheel work.
I tried to open the adapter - a crack went on the body, probably glued. There was no further pick.
I think that this adapter has the right to life.
The goods are provided with a discount, so paragraph 18

The goods are provided for writing a survey shop. The review is published in accordance with paragraph 18 of the site rules.

I plan to buy +27 Add to favourites I liked the review +55 +104

Most laptop motherboards have two SATA connectors on board. One is used to connect a hard disk (HDD), another to drive optical disks (ODD). Nowadays, the optical drive has practically lost the relevance, so instead I will connect an additional hard disk. The problem is that the optical drive and hard disk have different connectors. To connect a hard disk instead of an optical drive, make an adapter. This will be discussed in the article.

For the manufacture of the adapter we will need:

one). SlimLine SATA MALE (13-PIN) connector

It can be taken from the old optical drive. If you do not have the drive, stroll to the nearest repair service. Non-working drive will be released for free.

2). Standard SATA Female cable (7-PIN) - SATA FEMALE (7-PIN)

Such a cable can be bought at any computer store rubles for 15. Either exchange from a neighbor-computer to a cold beer can.

3). SATA FEMALE power connector (15-PIN)

This connector can be cut off from an inoperative computer power supply ATX. If there is no power supply, go to the repair service. You will give 10 burned power supplies.

four). Epoxy adhesive

The most expensive part of our adapter. Sold in auto shops and hozgazines. Instead of epoxy glue, you can use heatmosopli.

Proceed to the manufacture of an adapter
Disassemble the drive, remove the board with the connector.

The fee will be the supporting structure of our adapter. Therefore, cut it along the length, dismantle all the components.

Then cut the SATA (7-PIN) cable. Inside, we see two shielded pairs for receiving the signal.

We clean about 1 centimeter cable.

Remove the shielding shell.

From the SATA power connector (15-PIN), we remove the 12 volt line (yellow + black), we leave only a line by 5 volts (red + black).

Gently solder wires according to the scheme.

Fix the wires using plastic screeds.

All this disgrace is poured with epoxy glue.

Adapter is ready.

Take a laptop, turn it on and go to the BIOS. We find a list of boot devices. Here we see the string "SATA ODD" - the drive of optical disks.

Turn off the laptop, dismantle the drive of the optical disks. Instead of the drive, connect a hard disk through our adapter.