I’m probably doing something dumb, but I’m not seeing it. I can tell that something is happening, because the code completes in 3-4 seconds with no pin connections, it takes a bit over 60 seconds (as expected to scan 127 addresses with a 1/2 second timeout). I’ve tried it at 100KHz, 400KHz, 1MHz with the same result. Seed.PrintLine('I2C device found at address %x !', prAddress) Īnd the output when the Seed is connected (pins 12/13 on the pinout): Daisy is online Int prAddress = (address < 16) ? 0 : address = _i2c.TransmitBlocking(address, &testData, 1, 500) Static constexpr I2CHandle::Config _i2c_configįor(unsigned char address = 1 address < 127 address++) Here’s my libdaisy version: #include 'daisy_seed.h'

Serial.println('No I2C devices found ') ĭelay(5000) // wait 5 seconds for next scanĪnd the output (connected via A4/A5 to 3 daisy-chained (!) GPIO boards: Scanning. If you have a datasheet or sample code that uses 8-bit address, you’ll want to drop the low bit (i.e. Serial.print('I2C device found at address 0x') The Wire library uses 7 bit addresses throughout.

Here’s the i2cScanner code from Arduino that I’m porting: #include įor(byte address = 1 address < 127 address++ ) I wonder if you’d have a look at my code? I thought I understood everything based on your comments, Stephen, but I’m having no success. Arduino Code LiquidCrystalI2C lcd(0x27, 16, 2) // I2C address 0x27, 16 column and 2 rows void setup() void loop() delay(2000) // display the above for.

Arduino wire library code