diff --git a/bbn_m5atomS3_lite_INA219/bbn_m5atomS3_lite_INA219.ino b/bbn_m5atomS3_lite_INA219/bbn_m5atomS3_lite_INA219.ino
index 8b13789..9892f7d 100644
--- a/bbn_m5atomS3_lite_INA219/bbn_m5atomS3_lite_INA219.ino
+++ b/bbn_m5atomS3_lite_INA219/bbn_m5atomS3_lite_INA219.ino
@@ -1 +1,49 @@
+#include <M5AtomS3.h>
+#include <Adafruit_INA219.h>
+
+#include "NmeaXDR.h"
+
+void setup()   {
+  auto cfg = M5.config();
+  AtomS3.begin(cfg);
+  Serial.begin(4800);
+  Wire.begin(G2, G1, 100000UL);
+  if (!ina219.begin()) {
+    Serial.println("Failed to find INA219 chip");
+    while (1) {
+      delay(10);
+    }
+  }
+  /*
+    By default the INA219 will be calibrated with a range of 32V, 2A.
+    However uncomment one of the below to change the range.  A smaller
+    range can't measure as large of values but will measure with slightly
+    better precision.
+  */
+  //ina219.setCalibration_32V_1A();
+  //ina219.setCalibration_16V_400mA();
+}
+
+void loop() {
+  if (timeout < millis()) {
+    // Read voltage and current from INA219.
+    float shuntvoltage = ina219.getShuntVoltage_mV();
+    float busvoltage = ina219.getBusVoltage_V();
+    float current_mA = ina219.getCurrent_mA();
+
+    // Compute load voltage, power, and milliamp-hours.
+    float loadvoltage = busvoltage + (shuntvoltage / 1000);
+    float power_mW = loadvoltage * current_mA;
+
+    // Mode 0, display volts and amps.
+    printSIValue(loadvoltage, "V:", 2, 10);
+    display.setCursor(0, 16);
+    printSIValue(current_mA / 1000.0, "A:", 5, 10);
+
+    gen_nmea0183_xdr("$BBXDR,U,%.3f,V,VOLT_INA219", loadvoltage);
+    gen_nmea0183_xdr("$BBXDR,I,%.3f,A,AMPS_INA219", current_mA / 1000);
+    gen_nmea0183_xdr("$BBXDR,W,%.3f,W,WATT_INA219", power_mW / 1000);
+    timeout = millis() + 1000;
+  }
+}