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Mini Micro SD Card Reader module
Compact mini Micro SD card reader module with SPI interface for data storage and logging. Ideal for Arduino, ESP32, and DIY projects.
Description
The Mini Micro SD Card Reader Module is a compact and lightweight storage interface designed for reading and writing data on Micro SD cards. It communicates via the SPI protocol, making it easy to connect with Arduino, ESP32, Raspberry Pi, and other microcontrollers. Ideal for data logging, audio storage, file handling, and embedded system projects, this mini module supports high-capacity Micro SD cards while maintaining stable and reliable data transfer. Its small size makes it perfect for space-constrained DIY and embedded applications.
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-  Single row 0.1″ header for easy connection to a host system
- Power requirements: +5 VDC
- 30 mA idle
- 46-220 mA active (depending on speech parameters and output load)
- Â Communication: Asynchronous 9600 bps serial (8N1)
- Dimensions: 1.25″x1.5″x0.37″
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Text support rate is better
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 Interface operation is simpler
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5V single power supply.
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Output directly connected to the speaker, can drive 4 ohms 3W / 8 ohm 2W speakers
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Busy status output, can be connected to the microcontroller IO or indicator light, no need to be left floating.
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 Voice effect optimization
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 Module miniaturization and easy integration
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Dimension: 33*27.5mm
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With mounting holes
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