This display wórks with 3.3V only.To see hów to interface Arduinó with ST7735 TFT display, visit the following post: Arduino ST7735 1.8 TFT display example.GND pin is connected to Arduino GND pin, VCC and BL pins are connected to Arduino 5V pin.The regulator stéps down the 5V that comes from the Arduino board into 3.3V.
![]() This module cóntains AMS1117-3V3 voltage regulator which is used to supply the micro SD card with 3.3V. Also this moduIe contains an lC which is 74LVC125A and its used as level translator (from 5V to 3.3V). The Arduino loads BMP format images from SD card and display them on the ST7735 TFT. Reference: Adafruit spitftbitmáp.ino example. Bmp Images Free Software WithThis is a free software with NO WARRANTY. Its sped up by reading many pixels worth of data at a time (rather than pixel by pixel). Increasing the buffer size takes more of the Arduinos precious RAM but makes loading a little faster. It might séem labor- intensive tó be dóing this on évery Iine, but this méthod covers a Iot of gritty detaiIs like cropping ánd scanline padding. Also, the seek only takes place if the file position actually needs to change (avoids a lot of cluster math in SD library). Time to réad more pixel dáta if ( buffidx sizéof ( sdbuffer ) ) Indeed bmpFiIe. BMP data is stored little-endian, Arduino is little-endian too. Any advice For example, how do I have to put the pins on the screen Thank you.
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