ESP8266 12E NodeMCU 1.0 pin mapping for micro sd card?

iot sd-card esp8266 nodemcu arduino-esp8266
Naim Rajiv picture Naim Rajiv · May 28, 2017 · Viewed 8.4k times · Source

I tried several pin conifguration to connect nodemcu and micro sd card. However, I had not any luck to successfully connect to sd card. I followed esp8266 forum and some other solution! I need your suggestions :)

Answer

Naim Rajiv picture Naim Rajiv · May 28, 2017

The pin mapping that SD card attached to SPI bus as follows:

  • MicroSD => ESP8266
  • MOSI(DI) -> D7 (GPIO13) HMOSI
  • MISO(DO) -> D6 (GPIO12) HMISO
  • CLK -> D5 (GPIO14) HSCLK
  • CS -> D2 (GPIO4)
  • VDD -> Vin/3V3
  • GND -> GND

All other pin that available in microsd will not need to use!

After connecting all pin, you can test one of the example that given in by default. For example, In Arduino IDE you can use this example, File -> Examples -> 8266(SD) -> CardInfo

Related questions

What is the difference between MQTT broker and Apache Kafka

I am developing a mobile messaging app. I was going through technology needed and found two MQTT & Apache Kafta. To me both seems doing the same thing in the same way (in terms of subscribing & publishing to a …

Read More
How to find Co2 and O2 level using MQ135 with Arduino

How to find Co2 and O2 level or any other parameters using MQ135 with Arduino, I just sensed ppm data and displayed it on screen. int sensorValue; int pin8 = 8; void setup() { Serial.begin(9600); // sets the serial port to 9600 pinMode(pin8, …

Read More
What is the maximum message length for a MQTT broker?

I am using the node.js mosca MQTT broker for some internet of things (iot) application. https://github.com/mcollina/mosca What is the maximum message length that a topic can receive for the mosca broker? What are the factors …

Read More