{
  "format": "evn-blocks",
  "version": 3,
  "title": "TCS3430 colour sensor: minimal",
  "needs": "an ams-OSRAM TCS3430 colour sensor on I2C port 16",
  "description": "Takes the black (nothing in front) and the white (a white sheet), then prints the colour the TCS3430 sees five times a second for ten seconds.",
  "workspace": {
    "blocks": {
      "languageVersion": 0,
      "blocks": [
        {
          "type": "evn_setup_start",
          "x": 30,
          "y": 30,
          "next": {
            "block": {
              "type": "evn_tcs3430_setup",
              "fields": {
                "PORT": "16"
              }
            }
          }
        },
        {
          "type": "evn_program_start",
          "x": 30,
          "y": 160,
          "next": {
            "block": {
              "type": "text_print",
              "inputs": {
                "TEXT": {
                  "block": {
                    "type": "text",
                    "fields": {
                      "TEXT": "Nothing in front of the TCS3430..."
                    }
                  }
                }
              },
              "next": {
                "block": {
                  "type": "evn_wait",
                  "inputs": {
                    "TIME": {
                      "shadow": {
                        "type": "math_number",
                        "fields": {
                          "NUM": 2000
                        }
                      }
                    }
                  },
                  "next": {
                    "block": {
                      "type": "evn_tcs3430_calibrate",
                      "fields": {
                        "PORT": "16",
                        "WHAT": "black"
                      },
                      "next": {
                        "block": {
                          "type": "text_print",
                          "inputs": {
                            "TEXT": {
                              "block": {
                                "type": "text",
                                "fields": {
                                  "TEXT": "Hold a white sheet about 1 cm in front of the TCS3430..."
                                }
                              }
                            }
                          },
                          "next": {
                            "block": {
                              "type": "evn_wait",
                              "inputs": {
                                "TIME": {
                                  "shadow": {
                                    "type": "math_number",
                                    "fields": {
                                      "NUM": 3000
                                    }
                                  }
                                }
                              },
                              "next": {
                                "block": {
                                  "type": "evn_tcs3430_calibrate",
                                  "fields": {
                                    "PORT": "16",
                                    "WHAT": "white"
                                  },
                                  "next": {
                                    "block": {
                                      "type": "controls_repeat_ext",
                                      "inputs": {
                                        "TIMES": {
                                          "shadow": {
                                            "type": "math_number",
                                            "fields": {
                                              "NUM": 50
                                            }
                                          }
                                        },
                                        "DO": {
                                          "block": {
                                            "type": "text_print",
                                            "inputs": {
                                              "TEXT": {
                                                "block": {
                                                  "type": "evn_tcs3430_color",
                                                  "fields": {
                                                    "PORT": "16"
                                                  }
                                                }
                                              }
                                            },
                                            "next": {
                                              "block": {
                                                "type": "evn_wait",
                                                "inputs": {
                                                  "TIME": {
                                                    "shadow": {
                                                      "type": "math_number",
                                                      "fields": {
                                                        "NUM": 200
                                                      }
                                                    }
                                                  }
                                                }
                                              }
                                            }
                                          }
                                        }
                                      }
                                    }
                                  }
                                }
                              }
                            }
                          }
                        }
                      }
                    }
                  }
                }
              }
            }
          }
        }
      ]
    }
  }
}