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Description
Micro SD card reader module with goldpin connectors - 2.54 mm raster for self soldering. It communicates with the motherboard through the SPI interface, has a built-in buffer that works with 3.3 V and 5 V. The use of a stabilizer and +3.3V voltage output allows to supply additional modules.
Connection
SD cards communicate through the SPI bus. Most microcontrollers, including those used in ArduinoAVRy,have hardware control of this interface. The function of individual outputs is described in the table below.
| Pin | Description |
|---|---|
| +5V | Supply voltage 5 V. |
| +3,3V | Supply voltage 3.3 V. |
| GND | System weight |
| CD | Card detection. In the absence of a card, the pin is in a low state when the card is in the connector, the pin is disconnected (floating). |
| MOSI |
SPI bus input data. |
| MISO | SPI bus output data. |
|
SCK |
SPI bus clock line. |
|
CS |
SPI bus device (chip select). |
Specification
- Supply voltage: 3.3 V to 5 V
- Output operating voltage: 3.3 V to 5 V
- LED indication
- Leads: 8-pin goldpin connectors for self-soldering
- Controller: 74HC125
- Dimensions: 32 x 22 mm
- Module manufactured in Poland
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