Hi
I’m, working with Teensy4.0
I am trying to connect the [Qwiic Alphanumeric Display via I2c port.
When it connected to SDA1/SCL1 it works fine.
I need to connect it to SDA2(25)/SCL2(24).
that’s when things don’t work, I soldered (carefully) 2 wires to the Teensy4.0 (24 and 25) pads and connected them to the display. But I get a message that the display isn’t connected
The code is very simple:
#include <Wire.h>
#include <SparkFun_Alphanumeric_Display.h>
HT16K33 display;
void setup()
{
Serial.begin(115200);
while(!Serial);
Serial.println("Qwiic Alphanumeric examples");
Wire2.begin(); //Join I2C bus
//Wire2.setSDA(25);
//Wire2.setSCL(24);
if (display.begin() == false)
{
Serial.println("Device did not acknowledge! Freezing.");
while (1);
}
Serial.println("Display acknowledged.");
display.print("MILK");
delay(2000);
}
void loop()
{
display.print("KEYS");
delay(100);
}
Results:
Qwiic Alphanumeric examples
Device did not acknowledge! Freezing.