Hello!
my setup:
arduino uno R3
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seedstudio base SHIELD -<(I2C connector>- Adafruit BNO055
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hiletgo ILI9341 TFT display SHIELD
I am compiling my code WITHOUT #define USE_ADAFRUIT_SHIELD_PINOUT; meaning it will be using the pinout from the header of the example:
// The control pins for the LCD can be assigned to any digital or
// analog pins...but we'll use the analog pins as this allows us to
// double up the pins with the touch screen (see the TFT paint example).
#define LCD_CS A3 // Chip Select goes to Analog 3
#define LCD_CD A2 // Command/Data goes to Analog 2
#define LCD_WR A1 // LCD Write goes to Analog 1
#define LCD_RD A0 // LCD Read goes to Analog 0
#define LCD_RESET A4 // Can alternately just connect to Arduino's reset pin
// When using the BREAKOUT BOARD only, use these 8 data lines to the LCD:
// For the Arduino Uno, Duemilanove, Diecimila, etc.:
// D0 connects to digital pin 8 (Notice these are
// D1 connects to digital pin 9 NOT in order!)
// D2 connects to digital pin 2
// D3 connects to digital pin 3
// D4 connects to digital pin 4
// D5 connects to digital pin 5
// D6 connects to digital pin 6
// D7 connects to digital pin 7
// For the Arduino Mega, use digital pins 22 through 29
// (on the 2-row header at the end of the board).
Note that A4 and A5 are not in use, so they should be available for the I2C protocol.
basically I want to read something from the BNO and display on the screen.
Screen turns on, BNO turns on.
But soon after the LCD goes blank. I was able to trace the issue to the following line located in Adafruit_BNO055.cpp:
bool Adafruit_BNO055::readLen(adafruit_bno055_reg_t reg, byte *buffer,
uint8_t len)
which is using _wire calls.
If I empty this function (comment everything out) then the screen remains active (but obviously nothing gets read from BNO055.
Questions:
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why am I dealing with this interference?
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assuming I would be able to compile it and run it with #define USE_ADAFRUIT_SHIELD_PINOUT, whould that imply that the screen will be also using I2C, leaving all my Digital and A0-A3 available for other uses?
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why is my screen which is ILI9341 compatible not running properly using the #define USE_ADAFRUIT_SHIELD_PINOUT declaration? Is HiLetgo incompatible with Adafruit? Different I2C address?
Please help me.
thanks!
