add example

examples/TCA9548_demo_AM2320/.arduino-ci.yml

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+platforms:
+  rpipico:
+    board: rp2040:rp2040:rpipico
+    package: rp2040:rp2040
+    gcc:
+      features:
+      defines:
+        - ARDUINO_ARCH_RP2040
+      warnings:
+      flags:
+
+packages:
+  rp2040:rp2040:
+    url: https://github.com/earlephilhower/arduino-pico/releases/download/global/package_rp2040_index.json
+
+compile:
+  # Choosing to run compilation tests on 2 different Arduino platforms
+  platforms:
+    - uno
+    # - due
+    # - zero
+    # - leonardo
+    - m4
+    - esp32
+    - esp8266
+    # - mega2560
+    - rpipico
+  libraries:
+    - "AM232X"
+    - "TCA9548"

examples/TCA9548_demo_AM2320/TCA9548_demo_AM2320.ino

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+//
+//    FILE: TCA9548_demo_AM2320.ino
+//  AUTHOR: Rob Tillaart
+// PURPOSE: demo TCA9548 I2C multiplexer
+//     URL: https://github.com/RobTillaart/TCA9548
+
+
+#include "AM232X.h"
+#include "TCA9548.h"
+
+PCA9546 MP(0x70);
+uint8_t channels = 0;
+
+AM232X living;    //  channel 0
+AM232X kitchen;   //  channel 1
+AM232X outside;   //  channel 2
+
+uint32_t lastTime = 0;
+
+void setup()
+{
+  Serial.begin(115200);
+  Serial.println(__FILE__);
+  Serial.print("TCA9548_LIB_VERSION: ");
+  Serial.println(TCA9548_LIB_VERSION);
+  Serial.print("AM232X_LIB_VERSION: ");
+  Serial.println(AM232X_LIB_VERSION);
+  Serial.println();
+
+  Wire.begin();
+  //  initialize multiplexer
+  if (MP.begin() == false)
+  {
+    Serial.println("Multiplexer error");
+  }
+  channels = MP.channelCount();
+
+  //  initialize the temperature sensors
+  MP.selectChannel(0);
+  if (living.begin() == false)
+  {
+    Serial.println("living error");
+  }
+  MP.selectChannel(1);
+  if (kitchen.begin() == false )
+  {
+    Serial.println("kitchen error");
+  }
+  MP.selectChannel(2);
+  if (outside.begin() == false )
+  {
+    Serial.println("outside error");
+  }
+}
+
+
+void loop()
+{
+  if ((millis() - lastTime) > 5000)
+  {
+    lastTime = millis();
+
+    MP.selectChannel(0);
+    living.read();
+    Serial.print(living.getTemperature(), 1);
+    Serial.print("\t");
+
+    MP.selectChannel(1);
+    kitchen.read();
+    Serial.print(kitchen.getTemperature(), 1);
+    Serial.print("\t");
+
+    MP.selectChannel(2);
+    outside.read();
+    Serial.print(outside.getTemperature(), 1);
+    Serial.print("\n");
+  }
+}
+
+
+//  -- END OF FILE --