KY-039 Finger Detection Heartbeat Measuring Sensor Module
1. Use IR LED and an optical transistor to detect pulsation in fingers
2. Small and Compact module
3. Easy to use.
LDR 5MM
1. Diameter: 5mm
2. No. of Pins: 2
3. Type of Mounting: PCB Through Hole
4. Maximum Operating Temperature: +800°C (Approx.)
5. Dark resistance:1-20 Mohm
LM393 Digital LDR Sensor Module
1. LM393 based design.
2. Can detect ambient brightness and light intensity.
3. Adjustable sensitivity (via blue digital potentiometer adjustment).
4. Output Digital – 0V to 5V, Adjustable trigger level from preset.
5. LEDs indicating output and power.
6. Operating Voltage: 3.3V to 5V DC.
7. Operating Current: 15ma.
TCRT5000 SENSOR Module
1. Operating Voltage: 3.5V-5V
2. Supply Current: 15mA
3. Optimal Sensing Distance: 3mm
4. Designed with the reflected infrared sensor, indicator light.
5. Built in a potentiometer for sensitivity control.
6. On-board LM393 voltage comparator chip and infrared sensing probe TCRT5000L
7. Signal detection sensitivity can adjust
8. Reserve all the way more circuits (P3 voltage drawn)
TSOP Sensor Module KY-022
1. Dimension: 2.5 x 1.5 x 1.5 cm.
2. Receiving angle: 90 °.
3. Working voltage: 2.7 ~ 5.5V.
4. Frequency: 37.9KHz
5. Receiving range: 18m.
6. Weight: 4 gm.