01. The switching signal having a DO (TTL) output and analog output AO ;
02. TTL output valid signal is low . ( Low-level signal when the output light can be directly connected to the microcontroller or relay module )
03. Analog output voltage with the higher concentration of higher voltage.
04. A gas, natural gas, city gas , smoke better sensitivity.
05. Has a long life and reliable stability
06. Rapid response and recovery characteristics
07. Input voltage : DC5V Power consumption ( current ): 150mA
08. DO output : TTL digital 0 and 1 ( 0.1 and 5V)
09. AO output :0.1-0 .3 V ( relative to pollution ) , the maximum 10. concentration of a voltage of about 4V
11. Special note: After the sensor is powered , needs to warm up around 20S, measured data was stable , heat sensor is a normal phenomenon , because the internal heating wire , if hot is not normal .
Features :
The probe the temperature sensor DS18B20 original chip
High quality stainless steel tube encapsulation waterproof moistureproof prevent rust
Stainless steel shell (6 mm), lead X 32 length 100 cm
3.0 V to 5.5 V power supply
Temperature range wide-55 Degree + 125 Degree
No other components, unique single bus interface
Output lead: red (VCCS), blue, black (is) (GND)
Description:
* adjustable sensitivity ( shown in blue digital potentiometer adjustment )
* Operating Voltage 3.3V-5V
* Module Dual Output mode , a simple digital output , analog output more accurate.
* with fixed bolt hole for easy installation
* small PCB board size : 3cm * 1.6cm
* power indicator ( red ) and the digital switch output indicator ( green )
1.Working Voltage : 5V(DC)
2.Static current: Less than 2mA.
3.Output signal: Electric frequency signal, high level 5V, low level 0V.
4.Sensor angle: Not more than 15 degrees.
5.Detection distance: 2cm-450cm.
6.High precision: Up to 0.3cm
7.Input trigger signal: 10us TTL impulse
8.Echo signal : output TTL PWL signal
1. the output current DC/SCR/relay Control output: 100 ma / 5 v power supply
2. current DC < 25 ma
3. the response time < 2 ms
4. the pointing Angle: 15 ° or less, adjustable range 3-50 cm5,
5. test object: transparent or not transparent body
6. working environment temperature 25 ~ + 55
7. standard detection objects: the light from the sun under 10000 lx under incandescent light bulb 3000 lx
8. shell material: plastic
Electrical properties:
U: 5 V
I: 100 ma
Sn: 3-50 cm
Size:
17 mm diameter
The sensor length: 45mm
Lead length: 45 cm
Module features:
Test reflection distance: 1mm to 25mm
The working voltage of 3.3V to 5V
Output form: digital switch output (0 and 1)
Has a fixed bolt hole, convenient installation
Small board PCB size: 3.2cm x 1.4cm
The LM393, use of wide voltage comparator
Size:3.1x1.3cm(approx)
Specifications
Dimensions: 2.95" x 0.5" x 0.125" (without header pins installed)
Operating voltage: 3.3-5.0 V
Supply current: 100 mA
Output format: 8 analog voltages
Output voltage range: 0 V to supplied voltage
Optimal sensing distance: 0.125" (3 mm)
Maximum recommended sensing distance: 0.25" (6 mm)
Weight without header pins: 0.11 oz (3.09 g)
Features:
* Low power consumption
* Power supply for 2 ~ 5.5V DC
* Can replace the traditional touch of a button
* Four M2 screws positioning holes for easy installation
