Design with Micro-SD-Adapter in Cirkit DesignerThe Micro-SD-Adapter (Manufacturer: AZ, Part ID: Micro-SD-Unterseite) is a compact and versatile device designed to enable the use of Micro-SD cards in devices that only support standard SD card slots. By acting as a bridge between the two formats, this adapter ensures compatibility and seamless data transfer across a wide range of devices.
This circuit is designed to interface an Arduino UNO with a Micro SD Card Module for data storage, powered by two 18650 Li-ion batteries through a USB plug and controlled by a rocker switch. The Arduino communicates with the SD card module via SPI protocol and is also connected to the USB plug for potential data transfer or power supply.
Open Project in Cirkit Designer
This circuit connects an ESP32 Wroom Dev Kit microcontroller to a Micro SD Card Module for data storage purposes. The ESP32 is configured to communicate with the SD card using the SPI protocol, as indicated by the connections of MOSI, MISO, SCK, and CS pins. A separate Vcc component provides power to the SD card module.
Open Project in Cirkit Designer
This circuit features an ESP32-C3 microcontroller interfaced with a Micro SD Card Module. The ESP32-C3 handles SPI communication with the SD card for data storage and retrieval, with specific GPIO pins assigned for MOSI, MISO, SCK, and CS signals.
Open Project in Cirkit Designer
This circuit connects an ESP32 Wroom microcontroller to a Micro SD Card Module, enabling the ESP32 to read from and write to the SD card. The connections include SPI communication lines (CS, SCK, MOSI, MISO) and power lines (VCC, GND).
Open Project in Cirkit Designer| Parameter | Specification |
|---|---|
| Manufacturer | AZ |
| Part ID | Micro-SD-Unterseite |
| Supported Card Types | Micro-SD, Micro-SDHC, Micro-SDXC |
| Output Interface | Standard SD card format |
| Dimensions | 24mm x 32mm x 2.1mm |
| Operating Temperature | -25°C to 85°C |
| Storage Temperature | -40°C to 85°C |
| Material | Durable plastic and metal contacts |
The Micro-SD-Adapter does not have active electronic components but instead provides a direct pin-to-pin connection between the Micro-SD card and the standard SD card interface. Below is the mapping of the Micro-SD card pins to the standard SD card pins:
| Micro-SD Pin | Standard SD Pin | Description |
|---|---|---|
| 1 | 1 | DAT2 (Data Line 2) |
| 2 | 2 | CD/DAT3 (Card Detect/Data 3) |
| 3 | 3 | CMD (Command Line) |
| 4 | 4 | VDD (Power Supply) |
| 5 | 5 | CLK (Clock Signal) |
| 6 | 6 | VSS (Ground) |
| 7 | 7 | DAT0 (Data Line 0) |
| 8 | 8 | DAT1 (Data Line 1) |
| 9 | 9 | Reserved |
The Micro-SD-Adapter can be used with an Arduino UNO for data logging or file storage. Below is an example of how to interface the adapter with an Arduino UNO using the SD library.
#include <SPI.h>
#include <SD.h>
// Define the chip select pin for the SD card module
const int chipSelect = 10;
void setup() {
// Initialize serial communication for debugging
Serial.begin(9600);
while (!Serial) {
; // Wait for the serial port to connect
}
Serial.println("Initializing SD card...");
// Check if the SD card is available
if (!SD.begin(chipSelect)) {
Serial.println("Card failed, or not present");
// Stop further execution if the card is not detected
while (1);
}
Serial.println("Card initialized successfully!");
}
void loop() {
// Example: Write data to a file on the SD card
File dataFile = SD.open("example.txt", FILE_WRITE);
if (dataFile) {
dataFile.println("Hello, Micro-SD-Adapter!");
dataFile.close(); // Close the file after writing
Serial.println("Data written to example.txt");
} else {
Serial.println("Error opening example.txt");
}
delay(1000); // Wait for 1 second before repeating
}
Micro-SD Card Not Detected:
Data Transfer Errors:
Adapter Not Fitting Properly:
By following these guidelines, you can ensure reliable performance and longevity of your AZ Micro-SD-Adapter (Micro-SD-Unterseite).