TEST_START: 02_gain_test
  cal: bright=5 Y@1X=12
  cal: bright=15 Y@1X=24
  cal: bright=25 Y@1X=37
  cal: bright=35 Y@1X=49
  cal: bright=45 Y@1X=61
  gain_step=0 Y=61
  gain_step=1 Y=247
  gain_step=2 Y=981
  gain_step=3 Y=4052
  gain_step=4 Y=8366
TEST_PASS: 02_gain_test
