medpixman commented 5 years ago

This is a fantastic and comprehensive library! Thank-you so very much for all of your hard work!

Is there a command wiki? For example, how do I rotate the text display from Portrait to Landscape? Using this tft.setRotation(1)? What values are accepted?

I'm using LILYGO® TTGO T-Display ESP32 CP2104 WiFi bluetooth Module 1.14 Inch LCD Development Board For Arduino from Banggood:

ESPRESSIF-ESP32 240MHz Xtensa® dual-core 32-bit LX6 microprocessor IPS ST7789V 1.14 Inch

--

Thanks

Bodmer commented 5 years ago

Have a look at this tutorial. The Adafruit_GFX library has the same basic functions.

A command summary is on my TO DO list. I hope to find time to write a guide in October when I have some free time.

medpixman commented 5 years ago

Thank-you SO MUCH for responding, and so quickly too!

I really appreciated it!

On Wed, Sep 4, 2019 at 9:59 AM Bodmer notifications@github.com wrote:

Have a look at this tutorial https://learn.adafruit.com/adafruit-gfx-graphics-library/rotating-the-display . The Adafruit_GFX library has the same basic functions.

A command summary is on my TO DO list. I hope to find time to write a guide in October when I have some free time.

— You are receiving this because you authored the thread. Reply to this email directly, view it on GitHub https://github.com/Bodmer/TFT_eSPI/issues/422?email_source=notifications&email_token=AAX33BXJMXM5JBMKVF2ZJS3QH65M3A5CNFSM4ITMBVYKYY3PNVWWK3TUL52HS4DFVREXG43VMVBW63LNMVXHJKTDN5WW2ZLOORPWSZGOD53VD7Y#issuecomment-527913471, or mute the thread https://github.com/notifications/unsubscribe-auth/AAX33BQO475XIORDUIWSC2DQH65M3ANCNFSM4ITMBVYA .

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Google Voice 530 MEDPIX1 (530) 633-7491 [No Solicitations] YouTube Channel - http://www.youtube.com/user/TheMedpixman http://www.youtube.com/user/TheMedpixman

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*"Living Rich in Spirit, with Family and Friends, is more important than any material wealth." - *Δημήτριος Σμυρνιωτοπουλος

"Success is not measured by who gets credit. ... Success is measured by what gets done."

- Connie Morella, U.S. Congresswoman*

"Do not plan to Destroy, What you are not also able to Create" - Pierre LaFontaine

"If you never venture beyond what you know ... You've spawned your own limitations."

- Sumner Redstone

“A man travels the world in search of what he needs and returns home to find it.”

- George A. Moore 1852-1933*

"All science is either physics or stamp collecting." - Ernest Rutherford 1871–1937

"Curiosity, the overwhelming desire to know, is not characteristic of dead matter." - Isaac Asimov 1920-1992

KianYeo commented 5 years ago

Hi medpixman,

I noticed that I have the similar setup as you. I am using the ESP32 with a ST7789V (1.54"). However I am not getting the library to work. There is nothing displaying on the screen.

May I ask if you are using hardware SPI (MOSI - GPIO23 and SCLK - GPIO18) or you can assign any pins for your SPI? Also, how are you connecting your DC, CS and RST pin?

Thanks in advance!

This is a fantastic and comprehensive library! Thank-you so very much for all of your hard work!

Is there a command wiki? For example, how do I rotate the text display from Portrait to Landscape? Using this tft.setRotation(1)? What values are accepted?

I'm using LILYGO® TTGO T-Display ESP32 CP2104 WiFi bluetooth Module 2" (240 x320) Inch LCD Development Board For Arduino from Banggood:

ESPRESSIF-ESP32 240MHz Xtensa® dual-core 32-bit LX6 microprocessor IPS ST7789V 1.14 Inch

--

Thanks

medpixman commented 5 years ago

I'm using this ESP32 240MHz Xtensa® dual-core 32-bit LX6 microprocessor with IPS ST7789V 1.14 Inch from BangGood: https://www.banggood.com/LILYGO-TTGO-T-Display-ESP32-CP2104-WiFi-bluetooth-Module-1_14-Inch-LCD-Development-Board-For-Arduino-p-1522925.html?rmmds=myorder&cur_warehouse=USA

Here the pinout from their website: [image: image.png] I'm using this sketch:

/*

This is a fantastic and comprehensive library! Thank-you so very much for all of your hard work!

Is there a command wiki? For example, how do I rotate the text display from Portrait to Landscape? Using this tft.setRotation(1)? What values are accepted?

I'm using LILYGOÂ® TTGO T-Display ESP32 CP2104 WiFi bluetooth Module 1.14 Inch LCD Development Board For Arduino from Banggood:

ESPRESSIF-ESP32 240MHz XtensaÂ® dual-core 32-bit LX6 microprocessor IPSÂ ST7789V 1.14 Inch

*/

include

include "WiFi.h"

include

include "esp_adc_cal.h"

include "bmp.h"

ifndef TFT_DISPOFF

define TFT_DISPOFF 0x28

endif

ifndef TFT_SLPIN

define TFT_SLPIN 0x10

endif

define TFT_MOSI 19

define TFT_SCLK 18

define TFT_CS 5

define TFT_DC 16

define TFT_RST 23

define TFT_BL 4 // Display backlight control pin

define ADC_EN 14

define ADC_PIN 34

define BUTTON_1 35

define BUTTON_2 0

TFT_eSPI tft = TFT_eSPI(135, 240); // Invoke custom library Button2 btn1(BUTTON_1); Button2 btn2(BUTTON_2);

char buff[512]; int vref = 1100; int btnCick = false;

//! Long time delay, it is recommended to use shallow sleep, which can effectively reduce the current consumption void espDelay(int ms) { esp_sleep_enable_timer_wakeup(ms * 1000); esp_sleep_pd_config(ESP_PD_DOMAIN_RTC_PERIPH, ESP_PD_OPTION_ON); esp_light_sleep_start(); }

void showVoltage() { static uint64_t timeStamp = 0; if (millis() - timeStamp > 1000) { timeStamp = millis(); uint16_t v = analogRead(ADC_PIN); float battery_voltage = ((float)v / 4095.0) 2.0 3.3 * (vref / 1000.0); String voltage = "Voltage:" + String(battery_voltage) + "V";// Concatenate Text Serial.println(voltage); tft.fillScreen(TFT_BLACK); tft.setTextDatum(MC_DATUM); tft.drawString(voltage, tft.width() / 2, tft.height() / 2 ); } }

void button_init() { btn1.setLongClickHandler([](Button2 & b) { btnCick = false; int r = digitalRead(TFT_BL); tft.fillScreen(TFT_BLACK); tft.setTextColor(TFT_GREEN, TFT_BLACK); tft.setTextDatum(MC_DATUM); tft.drawString("Press again to wake up", tft.width() / 2, tft.height() / 2 ); espDelay(6000); digitalWrite(TFT_BL, !r);

tft.writecommand(TFT_DISPOFF);
tft.writecommand(TFT_SLPIN);
esp_sleep_enable_ext1_wakeup(GPIO_SEL_35, ESP_EXT1_WAKEUP_ALL_LOW);
esp_deep_sleep_start();

}); btn1.setPressedHandler([](Button2 & b) { Serial.println("Detect Voltage.."); btnCick = true; });

btn2.setPressedHandler([](Button2 & b) { btnCick = false; Serial.println("btn press wifi scan"); wifi_scan(); }); }

void button_loop() { btn1.loop(); btn2.loop(); }

void wifi_scan() { tft.setTextColor(TFT_GREEN, TFT_BLACK);// Green Text on Black Background tft.fillScreen(TFT_BLACK); // Clear Screen tft.setTextDatum(MC_DATUM); tft.setRotation(1); tft.setTextSize(2);

tft.drawString("Scanning Network", tft.width() / 2, tft.height() / 2);// Center Text delay (500);

WiFi.mode(WIFI_STA); WiFi.disconnect(); delay(100);

int16_t n = WiFi.scanNetworks(); tft.fillScreen(TFT_BLACK); if (n == 0) { tft.drawString("No Networks Found", tft.width() / 2, tft.height() / 2);// CENTER TEXT } else { String networks = String(n) + " - Networks Found";// Concatenate Text tft.drawString(networks, tft.width() / 2, tft.height() / 2);// CENTER TEXT delay(1000); tft.fillScreen(TFT_BLACK);// Clear Screen

tft.setTextSize(2);
tft.setTextDatum(TL_DATUM);
tft.setCursor(0, 0);

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

  sprintf(buff,
          "[%d]:%s(%d)",
          i + 1,
          WiFi.SSID(i).c_str(),
          WiFi.RSSI(i)
         );
  tft.println(buff);

  tft.print("CHAN:");
  tft.print(WiFi.channel(i));
  tft.print("(");
  String encryptionTypeDescription =

translateEncryptionType(WiFi.encryptionType(i)); tft.print(encryptionTypeDescription); tft.println(")");

  //      Serial.printf("[".WiFi.channel(i))."]";
  delay(10);
}

} WiFi.mode(WIFI_OFF); }

String translateEncryptionType(wifi_auth_mode_t encryptionType) { switch (encryptionType) { case (0): return "Open"; case (1): return "WEP"; case (2): return "WPA_PSK"; case (3): return "WPA2_PSK"; case (4): return "WPA_WPA2_PSK"; case (5): return "WPA2_ENTERPRISE"; } }

void setup() { Serial.begin(115200); Serial.println("Start"); tft.init(); tft.setRotation(1); tft.fillScreen(TFT_BLACK); tft.setTextSize(2); tft.setTextColor(TFT_WHITE); tft.setCursor(0, 0); tft.setTextDatum(MC_DATUM); tft.setTextSize(1);

//! The backlight has been initialized in the TFT_eSPI library // if (TFT_BL > 0) { // pinMode(TFT_BL, OUTPUT); // digitalWrite(TFT_BL, HIGH); // }

tft.setSwapBytes(true); tft.pushImage(0, 0, 240, 135, ttgo); espDelay(5000);

tft.setRotation(0); int i = 5; while (i--) { tft.fillScreen(TFT_RED); espDelay(500); tft.fillScreen(TFT_BLUE); espDelay(500); tft.fillScreen(TFT_GREEN); espDelay(500); }

button_init();

esp_adc_cal_characteristics_t adc_chars; esp_adc_cal_value_t val_type = esp_adc_cal_characterize((adc_unit_t)ADC_UNIT_1, (adc_atten_t)ADC1_CHANNEL_6, (adc_bits_width_t)ADC_WIDTH_BIT_12, 1100, &adc_chars); //Check type of calibration value used to characterize ADC if (val_type == ESP_ADC_CAL_VAL_EFUSE_VREF) { Serial.printf("eFuse Vref:%u mV", adc_chars.vref); vref = adc_chars.vref; } else if (val_type == ESP_ADC_CAL_VAL_EFUSE_TP) { Serial.printf("Two Point --> coeff_a:%umV coeff_b:%umV\n", adc_chars.coeff_a, adc_chars.coeff_b); } else { Serial.println("Default Vref: 1100mV"); } }

void loop() { if (btnCick) { showVoltage(); } button_loop(); }

I got more information from these links: https :// github.com/Xinyuan-LilyGO/TTGO-T-Display/blob/master/schematic/ESP32-TFT(6-26).pdf

github.com/Xinyuan-LilyGO/TTGO-T-Display github.com/Bodmer/TFT_eSPI

I hope this helps

On Sat, Sep 7, 2019 at 9:59 PM KianYeo notifications@github.com wrote:

Hi medpixman,

I noticed that I have the similar setup as you. I am using the ESP32 with a ST7789V (1.54"). However I am not getting the library to work. There is nothing displaying on the screen.

May I ask if you are using hardware SPI (MOSI - GPIO23 and SCLK - GPIO18) or you can assign any pins for your SPI? Also, how are you connecting your DC, CS and RST pin?

Thanks in advance!

This is a fantastic and comprehensive library! Thank-you so very much for all of your hard work!

Is there a command wiki? For example, how do I rotate the text display from Portrait to Landscape? Using this tft.setRotation(1)? What values are accepted?

I'm using LILYGO® TTGO T-Display ESP32 CP2104 WiFi bluetooth Module 1.14 Inch LCD Development Board For Arduino from Banggood:

ESPRESSIF-ESP32 240MHz Xtensa® dual-core 32-bit LX6 microprocessor IPS ST7789V 1.14 Inch

--

Thanks

— You are receiving this because you authored the thread. Reply to this email directly, view it on GitHub https://github.com/Bodmer/TFT_eSPI/issues/422?email_source=notifications&email_token=AAX33BSLO34ETN2O4XLWLS3QIRMBVA5CNFSM4ITMBVYKYY3PNVWWK3TUL52HS4DFVREXG43VMVBW63LNMVXHJKTDN5WW2ZLOORPWSZGOD6FF5HA#issuecomment-529161884, or mute the thread https://github.com/notifications/unsubscribe-auth/AAX33BSBQD456M5NBZ3PKBLQIRMBVANCNFSM4ITMBVYA .

--

James G. Smirniotopoulos, MD Chief Editor, MedPix®

Special Volunteer, National Library of Medicine, NIHWebsite: https://medpix.nlm.nih.gov/home https://medpix.nlm.nih.gov/homeFormer Professor and Chair of Radiology (retired)Uniformed Services University of the Health Sciences

Google Voice 530 MEDPIX1 (530) 633-7491 [No Solicitations] YouTube Channel - http://www.youtube.com/user/TheMedpixman http://www.youtube.com/user/TheMedpixman

"Science and the pursuit of knowledge have no country, no religion, and no political affiliation" - Richard Feynman

*"Living Rich in Spirit, with Family and Friends, is more important than any material wealth." - *Δημήτριος Σμυρνιωτοπουλος

"Success is not measured by who gets credit. ... Success is measured by what gets done."

- Connie Morella, U.S. Congresswoman*

"Do not plan to Destroy, What you are not also able to Create" - Pierre LaFontaine

"If you never venture beyond what you know ... You've spawned your own limitations."

- Sumner Redstone

“A man travels the world in search of what he needs and returns home to find it.”

- George A. Moore 1852-1933*

"All science is either physics or stamp collecting." - Ernest Rutherford 1871–1937

"Curiosity, the overwhelming desire to know, is not characteristic of dead matter." - Isaac Asimov 1920-1992

KianYeo commented 5 years ago

Thanks @medpixman . It was really helpful!

Bodmer / TFT_eSPI

TTOG - T ESP32 Rotate Display #422

include

include

include "WiFi.h"

include

include

include "esp_adc_cal.h"

include "bmp.h"

ifndef TFT_DISPOFF

define TFT_DISPOFF 0x28

endif

ifndef TFT_SLPIN

define TFT_SLPIN 0x10

endif

define TFT_MOSI 19

define TFT_SCLK 18

define TFT_CS 5

define TFT_DC 16

define TFT_RST 23

define TFT_BL 4 // Display backlight control pin

define ADC_EN 14

define ADC_PIN 34

define BUTTON_1 35

define BUTTON_2 0