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    Best posts made by teastain2

    • RE: Display removal, T-Display-S3

      @brekel
      Yes.
      The screen is held down with spongy two sided tape and the ribbon cable plugs into a connector on the board.
      You might soften the the tape with rubbing alcohol.
      They are very fragile.

      posted in Product information
      teastain2
      teastain2
    • RE: T-watch s3 2020 codes ?

      @eliott I'm not sure about this product.
      Are you asking for the exact firmware that shipped with your watch when new?
      Here is a link to example sketches at the LilyGO repository:
      https://github.com/Xinyuan-LilyGO/TTGO_TWatch_Library/tree/master/examples
      To be sure, you may raise and "Issue" on this site, which may take a long time.
      I have found that a nice inquiry at their office address works:
      sales@lilygo.cc
      Also LilyGO suggest this GitHub repository:
      https://github.com/sharandac/My-TTGO-Watch
      Hope this helps!
      -Terry

      posted in Build environment
      teastain2
      teastain2
    • RE: T-Beam SUPREME - Charging battery when off

      @luffe LilyGO products...generally yes, they charge all the time while plugged in to USB.
      You should conduct a simple test with your actual unit, as the documentation is very sparse.
      (I could not find a schematic for your board)
      -Terry

      posted in Technical Discussion
      teastain2
      teastain2
    • RE: Unable to make T-Display S3 work with LiPo battery

      Sounds like the ol' GPIO 15 must be turned on HIGH issue.
      This enables the display power and the circuit that uses and re-charges the battery.
      I made a support repository for new users here:
      https://github.com/teastainGit/LilyGO-T-display-S3-setup-and-examples
      My examples are the simplest possible sketches that use the display, TFT_eSPI and Serial.print functions, as a sort of tutorial.
      Hope this helps -Terry

      If you are not running one of my sketches, you should add:

      #define PIN_POWER_ON 15 // LCD and battery Power Enable
      #define PIN_LCD_BL 38 // BackLight enable pin (see Dimming.txt)

      just before the setup and then in setup add:
      pinMode(PIN_POWER_ON, OUTPUT); //triggers the LCD backlight
      pinMode(PIN_LCD_BL, OUTPUT); // BackLight enable pin

      digitalWrite(PIN_POWER_ON, HIGH);
      digitalWrite(PIN_LCD_BL, HIGH);

      posted in Common problems
      teastain2
      teastain2
    • RE: CAN Transceiver Support

      @luki743 said in CAN Transceiver Support:

      T-Embed

      Yes. ESP32 supports CAN and these are featured S3 boards.

      posted in Product information
      teastain2
      teastain2
    • RE: JST-GH connector on T-Camera S3 ?

      @jip Yes, battery.

      posted in Technical Discussion
      teastain2
      teastain2
    • RE: Boot-Problem: LilyGO TTGO-S3 Touch

      HotHead here!
      So, the HotHead sketch works on battery, yes?
      Could you post your temperature code here so I could run it on my LilyGO T-Display S3 ?
      -Terry

      posted in Common problems
      teastain2
      teastain2
    • RE: How to operate T-Display-S3 Touch out of the box

      @danardi It is indeed annoying and it gave me trouble, but I figured out that you can edit the pinconfig.h that appears in the Arduino IDE off to the right with your own SSID and Password and avoid the ESPTouch nonsense. (this 'ESP touch" has nothing to do with the optional touch screen, BTW)
      If you are new to LilyGO T-Display S3 I made a support GitHub repository here:
      https://github.com/teastainGit/LilyGO-T-display-S3-setup-and-examples
      -Terry

      posted in Product information
      teastain2
      teastain2
    • RE: JST-GH connector on T-Camera S3 ?

      @jip The recommended battery is this:
      Panasonic Lithium Ion 18650 3.7V, 3400Mah
      You can put 5V into the two prong battery plug and the regulator will bring it down to 3.3.
      The unit will still work, somewhat @ 3v.

      posted in Technical Discussion
      teastain2
      teastain2
    • RE: T-Display-S3 (touch version) trouble to connect SD card reader (SPI)

      @llsummer What problem are you having?
      What exact board do you have?

      posted in Common problems
      teastain2
      teastain2
    • RE: How to flash T-01C3

      @teastain2
      LilGO-TTL1024.png
      (you need to cross over TX to RX so that the TTl TX is the LilyGO RX !)

      posted in Product information
      teastain2
      teastain2
    • RE: Incompatibility with BluetoothSerial library on LilyGo T-Display-S3

      Well I get the same results on my setup!
      So i'm sorry but use this as you may!

      BTW Did you know that you can use three "`" single back quotes at the start of your code-paste to create this cool effect of your code?
      Also put three of them at the end.

      #include "BluetoothSerial.h"
      
      BluetoothSerial SerialBT; // Object for Bluetooth
      
      void setup() {
      Serial.begin(115200); // Start the built-in serial port, possibly to communicate with the host computer
      //SerialBT.begin("ESP32test"); // Start BluetoothSerial with the name "ESP32test"
      
      Serial.println("Bluetooth device is ready to pair");
      }
      
      void loop() {
      if (SerialBT.available()) { // Check if we receive anything from Bluetooth
      Serial.write(SerialBT.read()); // Send what we receive to the built-in serial port
      }
      
      if (Serial.available()) { // Check if anything is coming from the built-in serial port
      SerialBT.write(Serial.read()); // Send what we receive to Bluetooth
      }
      }
      

      -Terry

      posted in Technical Discussion
      teastain2
      teastain2
    • RE: T-Display-S3 (touch version) trouble to connect SD card reader (SPI)

      @llsummer You should have no trouble with either.
      Try this official sketch:
      https://github.com/Xinyuan-LilyGO/T-Display-S3/tree/main/examples/sd

      posted in Common problems
      teastain2
      teastain2
    • RE: Is T-watch 2020 V3 water resistant?

      @ivan Hi Ivan, this site is a volunteer user community site and anything I say is simply "advice".
      LilyGO make no claim of waterproof, but it seems well sealed.
      I think accidental splashing such as washing hands would be OK.
      Otherwise I would "Damp-Cloth" it as you say!
      -Terry

      posted in Product information
      teastain2
      teastain2
    • RE: T-Display S3 Pro - battery charging?

      The flashing red light is the battery charger IC status light.
      Your board uses an uncommon, but apparently sophisticated charge IC, so I can only speculate.
      The only possible states are OFF, flashing at different rates or ON.
      You should learn what the light means through observation.

      The other LilyGO boards with different LED indicators do something similar.

      -Terry

      posted in Technical Discussion
      teastain2
      teastain2
    • RE: how much voltage required to run t-deck with battery input

      @abdnatsheh The Board needs 3.3V obviously, but the recommended battery is 4.2V type rechargeable only.

      posted in Product information
      teastain2
      teastain2
    • RE: T-Display S3 AMOLED: monitoring works but can't upload

      @mshthn Your upload output seems to lack the actual 'writing' phase!
      This is the sketch I posted uploaded by Arduino IDE

      Sketch uses 258829 bytes (19%) of program storage space. Maximum is 1310720 bytes.
      Global variables use 18600 bytes (5%) of dynamic memory, leaving 309080 bytes for local variables. Maximum is 327680 bytes.
      esptool.py v4.5.1
      Serial port /dev/cu.usbmodem101
      Connecting...
      Chip is ESP32-S3 (revision v0.1)
      Features: WiFi, BLE
      Crystal is 40MHz
      MAC: [redacted]
      Uploading stub...
      Running stub...
      Stub running...
      Changing baud rate to 460800
      Changed.
      Configuring flash size...
      Flash will be erased from 0x00000000 to 0x00003fff...
      Flash will be erased from 0x00008000 to 0x00008fff...
      Flash will be erased from 0x0000e000 to 0x0000ffff...
      Flash will be erased from 0x00010000 to 0x0004ffff...
      Compressed 15104 bytes to 10430...
      Writing at 0x00000000... (100 %)
      Wrote 15104 bytes (10430 compressed) at 0x00000000 in 0.3 seconds (effective 463.0 kbit/s)...
      Hash of data verified.
      Compressed 3072 bytes to 146...
      Writing at 0x00008000... (100 %)
      Wrote 3072 bytes (146 compressed) at 0x00008000 in 0.1 seconds (effective 396.4 kbit/s)...
      Hash of data verified.
      Compressed 8192 bytes to 47...
      Writing at 0x0000e000... (100 %)
      Wrote 8192 bytes (47 compressed) at 0x0000e000 in 0.1 seconds (effective 585.2 kbit/s)...
      Hash of data verified.
      Compressed 259200 bytes to 144153...
      Writing at 0x00010000... (11 %)
      Writing at 0x0001daed... (22 %)
      Writing at 0x00024a12... (33 %)
      Writing at 0x00029eb2... (44 %)
      Writing at 0x0002f339... (55 %)
      Writing at 0x00034ad7... (66 %)
      Writing at 0x0003dfe1... (77 %)
      Writing at 0x000451c5... (88 %)
      Writing at 0x0004a906... (100 %)
      Wrote 259200 bytes (144153 compressed) at 0x00010000 in 1.6 seconds (effective 1276.8 kbit/s)...
      Hash of data verified.
      
      Leaving...
      Hard resetting via RTS pin...
      

      The 'Hard resetting via RTS pin...' should indicate a successful write and restart of the chip.

      posted in Technical Discussion
      teastain2
      teastain2
    • RE: T-Deck Internal battery, what kind?

      From the LilyGO page for your unit:
      Screenshot 2023-10-08 at 12.30.51 AM.png

      Red is positive.

      I usually comes with a short pigtail sample.

      posted in Product information
      teastain2
      teastain2
    • RE: T-Display S3 AMOLED: monitoring works but can't upload

      @mshthn

      bool ticktock;  //declare ticktock as a boolean flag
      
      void setup() {           //runs once on start up
        Serial.begin(115200);  //open the serial port for USB cable
        delay(500);
      }
      
      void loop() {                 //runs in circles!
        ticktock = !ticktock;  //every pass through reverse the flag
        if (ticktock) {              //test current value of the ticktock flag
          Serial.println("tick");
        } else {  //prints one or the other to the USB port
          Serial.println("tock");
        }
        delay(1000);                //wait for a second and run again!
      }
      

      Also try Arduino IDE if all else fails.

      posted in Technical Discussion
      teastain2
      teastain2
    • RE: S3 Amoled Touch, H681 different board layout

      @pike2k https://github.com/Xinyuan-LilyGO/LilyGo-AMOLED-Series/blob/master/schematic/T-Display-S3-AMOLED-Touch.pdf
      second I2C / qwiic connector bonus!
      Screenshot 2023-12-23 at 10.50.56 AM.png
      CN1 is labeled as a UART port but can host I2C.

      posted in Product information
      teastain2
      teastain2