Hello i have a question for you. I have 6 St7735s screen 0.96 ınch. I connect them to my Raspberry pi pico. I want to show them some text but they are showing at the same time. First screen start working and shows "Screen 1 Test" and then its close. After that second screen start working and show "Screen 2 Test" and its close again and it goes to last screen and it show "Screen 6 test" and not closing. But the rest of it stay close. I use same connection for GND - VCC - SCL - SDA - RES - DC pins. Only Cs pin is diffrent. Any advice for me?

The code that i used :

#include <Adafruit_GFX.h>
#include <Adafruit_ST7735.h>
#include <SPI.h>

#define TFT_CS1 2
#define TFT_CS2 3
#define TFT_CS3 4
#define TFT_CS4 5
#define TFT_CS5 14
#define TFT_CS6 15
#define TFT_DC 9
#define TFT_RST 7

Adafruit_ST7735 tfts[] = {
  Adafruit_ST7735(TFT_CS1, TFT_DC, TFT_RST),
  Adafruit_ST7735(TFT_CS2, TFT_DC, TFT_RST),
  Adafruit_ST7735(TFT_CS3, TFT_DC, TFT_RST),
  Adafruit_ST7735(TFT_CS4, TFT_DC, TFT_RST),
  Adafruit_ST7735(TFT_CS5, TFT_DC, TFT_RST),
  Adafruit_ST7735(TFT_CS6, TFT_DC, TFT_RST)

void setup() {

  for(int i = 0; i < 6; i++){

void loop() {
  for(int i = 0; i < 6; i++){
    tfts[i].setCursor(0, 0);
    tfts[i].println("Screen " + String(i+1) + " test");
  • what happens if you iterate through the screens in a descending order?
    – jsotola
    Mar 2, 2023 at 5:22
  • I didnt understand but if i lower delay time it still working same
    – Aconot
    Mar 2, 2023 at 9:31
  • go through the screens in the 6, 5, 4 order
    – jsotola
    Mar 2, 2023 at 16:19
  • 1
    You might want to have separate reset pin for each, it probably resets all displays and initialize one of them.
    – KIIV
    Mar 2, 2023 at 18:03
  • Or you can try if it's possible to configure only first object with TFT_RST and the rest with -1 instead. But it might be checked somewhere.
    – KIIV
    Mar 2, 2023 at 18:21


Your Answer

By clicking “Post Your Answer”, you agree to our terms of service and acknowledge you have read our privacy policy.

Browse other questions tagged or ask your own question.