{
  "format": "evn-blocks",
  "version": 3,
  "title": "Data log: minimal",
  "needs": "a motor on port 1, free to turn; an EVN IMU module on I2C port 1, kept still",
  "description": "Record a motor's angle and the IMU's heading on the board for 5 s while the motor turns, then save them to a CSV file on the board (/data/run1_<date>_<time>.csv once the console has set the board's clock).",
  "workspace": {
    "blocks": {
      "languageVersion": 0,
      "blocks": [
        {
          "type": "evn_setup_start",
          "x": 30,
          "y": 30,
          "next": {
            "block": {
              "type": "evn_imu_setup",
              "fields": {
                "PORT": "1",
                "CALIBRATE": "FALSE"
              },
              "next": {
                "block": {
                  "type": "evn_datalog_setup",
                  "fields": {
                    "NAME": "run1",
                    "COLUMNS": ""
                  }
                }
              }
            }
          }
        },
        {
          "type": "evn_program_start",
          "x": 30,
          "y": 140,
          "next": {
            "block": {
              "type": "evn_datalog_add_motor",
              "fields": {
                "PORT": "1",
                "WHAT": "angle"
              },
              "inputs": {
                "RATE": {
                  "shadow": {
                    "type": "math_number",
                    "fields": {
                      "NUM": 0
                    }
                  }
                }
              },
              "next": {
                "block": {
                  "type": "evn_datalog_add",
                  "fields": {
                    "SOURCE": "IMU",
                    "PORT": "1",
                    "QUANTITY": "heading"
                  },
                  "inputs": {
                    "RATE": {
                      "shadow": {
                        "type": "math_number",
                        "fields": {
                          "NUM": 0
                        }
                      }
                    }
                  },
                  "next": {
                    "block": {
                      "type": "evn_datalog_run",
                      "fields": {
                        "ACTION": "start"
                      },
                      "next": {
                        "block": {
                          "type": "evn_motor_run",
                          "fields": {
                            "PORT": "1"
                          },
                          "inputs": {
                            "SPEED": {
                              "shadow": {
                                "type": "math_number",
                                "fields": {
                                  "NUM": 300
                                }
                              }
                            }
                          },
                          "next": {
                            "block": {
                              "type": "evn_wait",
                              "inputs": {
                                "TIME": {
                                  "shadow": {
                                    "type": "math_number",
                                    "fields": {
                                      "NUM": 5000
                                    }
                                  }
                                }
                              },
                              "next": {
                                "block": {
                                  "type": "evn_motor_stop",
                                  "fields": {
                                    "ACTION": "stop",
                                    "PORT": "1"
                                  },
                                  "next": {
                                    "block": {
                                      "type": "evn_datalog_run",
                                      "fields": {
                                        "ACTION": "stop"
                                      },
                                      "next": {
                                        "block": {
                                          "type": "evn_datalog_save"
                                        }
                                      }
                                    }
                                  }
                                }
                              }
                            }
                          }
                        }
                      }
                    }
                  }
                }
              }
            }
          }
        }
      ]
    }
  }
}