The tag 'mg-210' is only used once. This is the project:
GPS HOLUX GM-210 mit LCD, MenueButton, 1Wire and I2C
GPS HOLUX GM-210 mit LCD, MenueButton, optianal: 1Wire and I2C for compass and sensors
GPS HOLUX GM-210 mit LCD, MenueButton, optianal: 1Wire and I2C for compass and sensors