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Type: Posts; User: zachSounds

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    I received the level shifter and guess what: it...

    I received the level shifter and guess what: it works! Using the level shifter I'm able to work with both of my LCD modules, able to print() and everything else too.

    Thanks again for the help...
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    Welp, tried a couple more things: Modified...

    Welp, tried a couple more things:
    Modified Wire.write() to also do Serial.println() so I could verify both the Arduino and Teensy are issuing the same I2C codes (they are)
    per a suggestion I...
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    I tried out the following: Adding...

    I tried out the following:


    Adding delay(100) before lcd.init()
    Using <LCD03.h> (adjusting for 0x27 I2C address)
    Using <LiquidCrystal_PCF8574.>


    No luck :( With the alternate libraries I...
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    Scanner says: Scanning... Device found at...

    Scanner says:

    Scanning...
    Device found at address 0x27 (MCP23017,MCP23008,PCF8574,LCD16x2,DigoleDisplay)
    done
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    I'm using pins 19 (SCL) and 18 (SDA) and have...

    I'm using pins 19 (SCL) and 18 (SDA) and have them wired up correspondingly (I Sharpie'd a black stripe on the SCL wire to make sure) and have tried reversing them and have also tried using the...
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    Thanks Paul! I'm using John Rickman's...

    Thanks Paul!

    I'm using John Rickman's LiquidCrystal_I2C library intended for DFRobot I2C LCD displays: https://github.com/johnrickman/LiquidCrystal_I2C

    The 16x2 I2C LCD I test with is an...
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    Teensy 4.1 vs. LiquidCrystal_I2C

    Howdy,

    I am having a perplexing issue where I can get an I2C LCD to partially work with my Teensy 4.1 with LiquidCrystal_I2C. The LCD has an I2C 'backpack' board which is connected to 3.3V, GND,...
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