adding ADG729 examples

adding ADG729 examples for Arduino and CircuitPython

Author: BlitzCityDIY

ADG72x_Examples/Arduino_ADG728_Plotter/Arduino_ADG728_Plotter.ino

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+// SPDX-FileCopyrightText: 2024 Liz Clark for Adafruit Industries
+//
+// SPDX-License-Identifier: MIT
+
+#include <Adafruit_ADG72x.h>
+
+Adafruit_ADG72x adg72x;
+
+bool isADG728 = false; // which chip are we connected to?
+
+int analogIn = A0;
+int analogValue = 0;
+unsigned long switchTimer = 1000; // 1000 ms = 1 second for channel switch
+unsigned long readTimer = 10; // 10 ms for analog read
+unsigned long lastSwitchTime = 0; // Last time the channels were switched
+unsigned long lastReadTime = 0; // Last time the analog was read
+uint8_t currentChannel = 0; // Current channel being selected
+
+void setup() {
+  Serial.begin(115200);
+
+  // Wait for serial port to open
+  while (!Serial) {
+    delay(1);
+  }
+
+  // Try with the ADG728 default address first...
+  if (adg72x.begin(ADG728_DEFAULT_ADDR, &Wire)) {
+    Serial.println("ADG728 found!");
+    isADG728 = true;
+  }
+  // Maybe they have an ADG729?
+  else if (adg72x.begin(ADG729_DEFAULT_ADDR, &Wire)) {
+    Serial.println("ADG729 found!");
+    isADG728 = false;
+  }
+  else {
+    Serial.println("No ADG device found? Check wiring!");
+    while (1); // Stop here if no device was found
+  }
+}
+
+void loop() {
+  unsigned long currentTime = millis();
+
+  // read and print analog value every 10ms
+  if ((currentTime - lastReadTime) >= readTimer) {
+    analogValue = analogRead(analogIn);
+    Serial.println(analogValue);
+    lastReadTime = currentTime;
+  }
+
+  // switch channels every 1 second
+  if ((currentTime - lastSwitchTime) >= switchTimer) {
+    uint8_t bits = 1 << currentChannel; // Shift a '1' from LSB to MSB
+    if (!adg72x.selectChannels(bits)) {
+      Serial.println("Failed to set channels...");
+    }
+    /*Serial.print((currentChannel % 4) + 1);
+    if (currentChannel < 4) Serial.println("A");
+    else       Serial.println("B");*/
+    currentChannel = (currentChannel + 1) % 8; // Move to the next channel, wrap around at 8
+    lastSwitchTime = currentTime;
+  }
+}

ADG72x_Examples/Arduino_ADG729_Plotter/Arduino_ADG729_Plotter.ino

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+// SPDX-FileCopyrightText: 2024 Liz Clark for Adafruit Industries
+//
+// SPDX-License-Identifier: MIT
+
+#include <Adafruit_ADG72x.h>
+
+Adafruit_ADG72x adg72x;
+
+int analogInA0 = A0;
+int analogInA1 = A1;
+int analogValueDA = 0;
+int analogValueDB = 0;
+unsigned long switchTimer = 1000; // 1000 ms = 1 second for channel switch
+unsigned long readTimer = 10; // 10 ms for analog read
+unsigned long lastSwitchTime = 0; // Last time the channels were switched
+unsigned long lastReadTime = 0; // Last time the analog was read
+uint8_t currentChannel = 0; // Current channel being selected
+
+void setup() {
+  Serial.begin(115200);
+
+  // Wait for serial port to open
+  while (!Serial) {
+    delay(1);
+  }
+
+  // Try with the ADG728 default address first...
+  if (adg72x.begin(ADG728_DEFAULT_ADDR, &Wire)) {
+    //Serial.println("ADG728 found!");
+  }
+  // Maybe they have an ADG729?
+  else if (adg72x.begin(ADG729_DEFAULT_ADDR, &Wire)) {
+    //Serial.println("ADG729 found!");
+  }
+  else {
+    Serial.println("No ADG72x device found? Check wiring!");
+    while (1); // Stop here if no device was found
+  }
+}
+
+void loop() {
+  unsigned long currentTime = millis();
+
+  // read and print analog value every 10ms
+  if ((currentTime - lastReadTime) >= readTimer) {
+    analogValueDA = analogRead(analogInA0);
+    analogValueDB = analogRead(analogInA1);
+    Serial.print(analogValueDA);
+    Serial.print(",");
+    Serial.println(analogValueDB);
+    lastReadTime = currentTime;
+  }
+
+  // switch channels every 1 second
+  if ((currentTime - lastSwitchTime) >= switchTimer) {
+    uint8_t bits = 1 << currentChannel; // Shift a '1' from LSB to MSB
+    if (!adg72x.selectChannels(bits)) {
+      Serial.println("Failed to set channels...");
+    }
+    /*Serial.print((currentChannel % 4) + 1);
+    if (currentChannel < 4) Serial.println("A");
+    else       Serial.println("B");*/
+    currentChannel = (currentChannel + 1) % 8; // Move to the next channel, wrap around at 8
+    lastSwitchTime = currentTime;
+  }
+}

ADG72x_Examples/Arduino_ADG72x_Plotter/Arduino_ADG72x_Plotter.ino

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+# SPDX-FileCopyrightText: Copyright (c) 2024 Liz Clark for Adafruit Industries
+#
+# SPDX-License-Identifier: MIT
+
+import time
+import board
+import adafruit_adg72x
+from analogio import AnalogIn
+
+analog_in_DA = AnalogIn(board.A0)
+analog_in_DB = AnalogIn(board.A1)
+
+i2c = board.I2C()
+switch = adafruit_adg72x.ADG72x(i2c, 0x44)
+
+c = 0
+switch_time = 3
+clock = time.monotonic()
+
+while True:
+    if (time.monotonic() - clock) > switch_time:
+        if c < 4:
+            channels = "A"
+        else:
+            channels = "B"
+        print(f"Selecting channel {(c % 4) + 1}{channels}")
+        switch.channel = c
+        c = (c + 1) % 8
+        clock = time.monotonic()
+    print((analog_in_DA.value, analog_in_DB.value,))
+    time.sleep(0.1)