Merge pull request #2780 from caternuson/ltc4316_examples

Add LTC4316 examples

Author: ladyada

I2C_Multiple_Same_Address/arduino/multi_bme280_ltc4316/multi_bme280_ltc4316.ino

@@ -0,0 +1,39 @@
+// SPDX-FileCopyrightText: 2024 Carter Nelson for Adafruit Industries
+//
+// SPDX-License-Identifier: MIT
+
+#include <Adafruit_BME280.h>
+
+// For each device, create a separate instance.
+Adafruit_BME280 bme1;  // BME280 #1 @ 0x77
+Adafruit_BME280 bme2;  // BME280 #2 @ 0x37
+
+void setup() {
+  Serial.begin(9600);
+  while(!Serial);
+  Serial.println(F("Two BME280 Example"));
+
+  // NOTE: There's no need to manually call Wire.begin().
+  // The BME280 library does that in its begin() method. 
+  
+  // In the call to begin, pass in the I2C address.
+  // If left out, the default address is used.
+  // But also OK to just be explicit and specify.
+  bme1.begin(0x77);  // address = 0x77 (default)
+  bme2.begin(0x37);  // address = 0x37 (behind LTC4316)
+}
+
+
+void loop() {
+  float pressure1, pressure2;
+
+  // Read each device separately
+  pressure1 = bme1.readPressure();
+  pressure2 = bme2.readPressure();
+
+  Serial.println("------------------------------------");
+  Serial.print("BME280 #1 Pressure = "); Serial.println(pressure1);
+  Serial.print("BME280 #2 Pressure = "); Serial.println(pressure2);
+
+  delay(1000);
+}

I2C_Multiple_Same_Address/circuitpython/multi_bme280_ltc4316/code.py

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+# SPDX-FileCopyrightText: 2024 Carter Nelson for Adafruit Industries
+#
+# SPDX-License-Identifier: MIT
+
+import time
+import board
+from adafruit_bme280 import basic as adafruit_bme280
+
+# Get the board's default I2C port
+i2c = board.I2C()  # uses board.SCL and board.SDA
+# i2c = board.STEMMA_I2C()  # For using the built-in STEMMA QT connector on a microcontroller
+
+#--------------------------------------------------------------------
+# NOTE!!! This is the "special" part of the code
+#
+# Create each sensor instance
+# If left out, the default address is used.
+# But also OK to be explicit and specify address.
+bme1 = adafruit_bme280.Adafruit_BME280_I2C(i2c, 0x77)  # address = 0x77
+bme2 = adafruit_bme280.Adafruit_BME280_I2C(i2c, 0x37)  # address = 0x37
+#--------------------------------------------------------------------
+
+print("Two BME280 Example")
+
+while True:
+    # Access each sensor via its instance
+    pressure1 = bme1.pressure
+    pressure2 = bme2.pressure
+
+    print("-"*20)
+    print("BME280 #1 Pressure =", pressure1)
+    print("BME280 #2 Pressure =", pressure2)
+
+    time.sleep(1)