External pullup | AVR Freaks
How to design the microSD circuitry
Saving sensor data to SD card using Arduino — Curious Scientist
SD card via SPI: pull-up resistors or dedicated IC? - Electrical Engineering Stack Exchange
AVR SD Card Initialization Tutorial Part 1
How to use SD card with esp8266 and Arduino – 1 – Renzo Mischianti
Detect microSD card connected to Arduino?
microcontroller - SD card socket just need to wire with pull-up resistors? - Electrical Engineering Stack Exchange
Schematics: SD Card | Details | Hackaday.io
![STM32F4] SDIO - Use external or internal pull-up resistors? : r/embedded](https://external-preview.redd.it/2jk_7UQZk7C0pC9L0RvM065jv-UH1sl6F6NfaOnvpGs.jpg?auto=webp&s=6b9a049d425f376c04cb9461eceaf2ccd4bcf1f5 "STM32F4] SDIO - Use external or internal pull-up resistors? : r/embedded")
STM32F4] SDIO - Use external or internal pull-up resistors? : r/embedded
SD Card Module - Pull-Up Resistors and Decoupling Capacitor? - Storage - Arduino Forum
AVR SD Card Initialization Tutorial Part 1
PIC32MX: Interfacing to a Secure Digital (SD) Flash Card - Northwestern Mechatronics Wiki
External pullup | AVR Freaks
How to design the microSD circuitry
SD card - Wikiwand
SD Card Module - Pull-Up Resistors and Decoupling Capacitor? - Storage - Arduino Forum
Introduction | Micro SD Card Breakout Board Tutorial | Adafruit Learning System
SD card via SPI: pull-up resistors or dedicated IC? - Electrical Engineering Stack Exchange
SD card via SPI: pull-up resistors or dedicated IC? - Electrical Engineering Stack Exchange
arduino - SD card initialisation problem with Atmega32u4 - Electrical Engineering Stack Exchange
microcontroller - SD card socket just need to wire with pull-up resistors? - Electrical Engineering Stack Exchange
Why have a Pullup on MOSI and MISO? | AVR Freaks
