China Hr202 Humidity Detection Sensor Module DC 3.3V-5V Lm393 Chip (3 wire system), Find details about China Sensor, Hr202 from Hr202 Humidity Detection Sensor Module DC 3.3V-5V Lm393 Chip (3 wire system)
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Module interface specification (4-wire) 1. VCC: Positive power supply 3.3V-5V 2. GND:Negative power supply 3. DO: TTL switching signal output 4. AO board analog output (voltage signal) |
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