IoT - Modular - SD Card.h
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1 // SD Pinout
2 // Pin # Pin name SD Mode SPI Mode
3 // 1 DAT3/CS Data Line 3 Chip Select
4 // 2 CMD/DI Command Line Data Input [MOSI]
5 // 3 VSS1 Ground Ground
6 // 4 Vdd Power 2.7v-3.6v Power Supply 2.7v-3.6v
7 // 5 Clock Clock SerialClock [SCK]
8 // 6 Vss2 Ground Ground
9 // 7 DAT0/D0 Data Line 0 Data Out [MISO]
10 // 8 DAT1/IRQ Data Line 1 Unused or IRQ
11 // 9 DAT2/NC Data Line 2 Unused
12
13 // microSD Pinout
14 // Pin # Pin name SD Mode SPI Mode
15 // 1 DAT2 Data Line 2 Unused
16 // 2 CD/DAT3 Card Detect / Data Bit 3 Chip Select
17 // 3 CMD Command Line Data Input [MOSI]
18 // 4 Vdd Power 2.7v-3.6v Power Supply 2.7v-3.6v
19 // 5 CLK Clock Serial Clock [SCK]
20 // 6 Vss Ground Ground
21 // 7 DAT0 Data Line 0 Data Out [MISO]
22 // 8 DAT1 Data Line 1 Reserved
23
24 // miniSD Pinout
25 // Pin # Pin name SD Mode SPI Mode
26 // 1 DAT3/CD Chip Detect/Data Line 3 Chip Select
27 // 2 CMD/DI Command Line Data In [MOSI]
28 // 3 VSS1 Ground Ground
29 // 4 Vdd Power 2.7v-3.6v Power Supply 2.7v-3.6v
30 // 5 Clock Clock Clock [SCK]
31 // 6 Vss2 Ground Ground
32 // 7 DAT0/D0 Data Line 0 Data Out [MISO]
33 // 8 DAT1/IRQ Data Line 1 Unused
34 // 9 DAT2/NC Data Line 2 Unused
35 // 10 NC For future use For future use
36 // 11 NC For future use For future use
37
38 /*
39 * SD card usage with microcontrollers is generally based on SPI.
40 *
41 * A resource to get started:
42 * https://www.mischianti.org/2019/12/15/how-to-use-sd-card-with-esp8266-and-arduino/
43 * NOTE!!!
44 * core > 2.4.2
45 */
46
47 /*
48 SD => ESP8266 => WeMoS
49 CS => GPIO2 => D4
50 SCK => GPIO14 => D5
51 MOSI => GPIO13 => D7
52 MISO => GPIO12 => D6
53 */
