Twoglogdedicated
Jump to navigation
Jump to search
Introduction
A TWOG board dedicated for LoggingYou can directly connect a micro SD card to a TWOG. Remember that micro SD cards do have a limited number of insertions and should not be plugged too often. The (micro) SD card is connected to the SPI1 of the TWOG following this scheme:
microSD TinyV2 SPI J3 8 nc 7 DO 5 MISO 6 GND 1 GND 5 CLK 7 SCK 4 Vcc 2 +3V3 3 DI 4 MOSI 2 CS 3 SSEL 1 nc
Looking onto the gold plated connector side of the microSD card: ############### I 8 I 7 I 6 I 5 I 4 I 3 I 2 I 1 ###### ## \ I \ ## ##
The start/stop button is connected to the BUTTON (P0.7) pin of the USB connector (J9). It is activated by pulling it low.