jivith HMC5883L Magnetometer Temperature Sensor and Controller Electronic Hobby Kit

Feature: The sensor USES the high quality FR - 04 double material, large area of 5.5 * 4.0CM, treatment of nickel plating and surface, have fight oxidation, electrical conductivity, and life has more superior performance; With potentiometer sensitivity adjustment; The output format: digital switch output (0 and 1) and analog AO voltage output; Has a fixed bolt hole, convenient installation; The comparator output, signal clean, good waveform, driving ability is strong, for more than 15 mA; The LM393, use of wide voltage comparator; The working voltage of 3.3 V to 5 V; Like the picture show.Usage:Connected to 5 v power supply power lights, no water droplets on induction plate, the DO output for the high level, switch lights out, a drop of water drops, the DO output for the low level, switch indicator,brush away the water droplets, return to again, the output high level state. - AO analog output, can be connected to the microcontroller AD mouth drops of rainfall in the above size. - DO TTL digital output can also be connected microcontroller detecting whether it will rain)