v2.9

lib/Adafruit BusIO/examples/i2c_readwrite/i2c_readwrite.ino

@@ -0,0 +1,41 @@
+#include <Adafruit_I2CDevice.h>
+
+#define I2C_ADDRESS 0x60
+Adafruit_I2CDevice i2c_dev = Adafruit_I2CDevice(I2C_ADDRESS);
+
+
+void setup() {
+  while (!Serial) { delay(10); }
+  Serial.begin(115200);
+  Serial.println("I2C device read and write test");
+
+  if (!i2c_dev.begin()) {
+    Serial.print("Did not find device at 0x");
+    Serial.println(i2c_dev.address(), HEX);
+    while (1);
+  }
+  Serial.print("Device found on address 0x");
+  Serial.println(i2c_dev.address(), HEX);
+
+  uint8_t buffer[32];
+  // Try to read 32 bytes
+  i2c_dev.read(buffer, 32);
+  Serial.print("Read: ");
+  for (uint8_t i=0; i<32; i++) {
+    Serial.print("0x"); Serial.print(buffer[i], HEX); Serial.print(", ");
+  }
+  Serial.println();
+
+  // read a register by writing first, then reading
+  buffer[0] = 0x0C;  // we'll reuse the same buffer
+  i2c_dev.write_then_read(buffer, 1, buffer, 2, false);
+  Serial.print("Write then Read: ");
+  for (uint8_t i=0; i<2; i++) {
+    Serial.print("0x"); Serial.print(buffer[i], HEX); Serial.print(", ");
+  }
+  Serial.println();
+}
+
+void loop() {
+  
+}