Description
The reader of memory micro SD card module from Pololu with goldpin connectors - 2.54 mm pitch for self-soldering. It communicates with main board via SPI interface, it has a built-in controller and converter so it works with a voltage of 5 V. In our offer, available are alsoreaders operating with the voltage of 3.3 V.
The set includes the module and the goldpin strap for self-soldering, the microSD cardcan be purchased separately.
|
The product is compatible with Arduino To use the module, you can usethe standard SD library. |
Connection
The SD cards communicate using the SPI bus. Most of the microcontrollers, including those used inArduinoAVRy, have hardware control of this interface. The functions of the findings are presented in the array below.
| Pin | Description |
|---|---|
| GND | The ground of the module. |
| VDD | The supply voltage of 5 V. |
| EN | Pin to activate the voltage regulator of 3.3 V. It is pulled up to VDD through a resistor of 100 so the regulator is enabled by default. |
| CD | Card detection. In case of the absence of a pin card, it is in the low status, when the card is in the connector, the status is high. The pin is pulled up to VDD through a resistor of 100kΩ. |
|
CS |
Selecting device (chip select) in SPI mode. For operation of the module, you must indicate the low status. |
| SCLK |
Clock line of the SPI bus. |
|
DO |
The output data (MISO) in SPI bus. |
|
DI |
Input data (MOSI) of the SPI bus. |
|
3V3 |
The output ofthe voltage regulator of 3.3 V. |
| The module has a built-in regulator and voltage converter so you can connect it directly to boards operating with a voltage of 5 V, for example,Arduino UnoandLeonardo. |
Specification
- Supply voltage: 5 V
- Built-in slot for microSD memory cards
- Built-in voltage regulator: 5 V / 3.3 V
- Built-in converter of voltage
- Communications: SPI bus
- Compatible with the standard Arduino SD library
- The set includes the goldpin strap for independent soldering
- Board sizes: 24 x 23 x 3 mm
- Weight: 1.8 g
Useful links |
