 
   Tsunami.setAmplitude(0);
   delay(500);
-  assert_nearly_equal("input_amp_0", Tsunami.measurePeakVoltage(), -3130, 150);
+  assert_nearly_equal("input_amp_0", Tsunami.measurePeakVoltage(), 0, 150);
 
   return true;
 }

  Tsunami.setFrequency(100000.0);
  delay(100);
  assert_nearly_equal("input_freq_100k", (int32_t)Tsunami.measureFrequency(), 100000l, 2l);
  assert_nearly_equal("input_phase_100k", (int16_t)(1000 * Tsunami.measurePhase()), 0, 50);

  Tsunami.setFrequency(1000000.0);
  // Reset phase counter for sensitive measurement

  int offset = Tsunami.measureCurrentVoltage();
  Tsunami.setOffset(-1000);
  delay(200);
  assert_nearly_equal("output_offset_neg", Tsunami.measureCurrentVoltage(), offset - 1325, 75);
  Tsunami.setOffset(1000);
  delay(200);
  assert_nearly_equal("output_offset_pos", Tsunami.measureCurrentVoltage(), offset + 1325, 75);
  return true;
}

