Chip model : ACS712ELC-20A
Pin 5V power supply, on-board power indicator;
The module can be measured plus or minus 20 amps, corresponding to the analog output of 100 mV / A;
There is no the detection current through, the output voltage is VCC / 2;
Model number : ACS712
PCB board size : 31 X 13 mm
20A range
Feature summary
Operating voltage: 4.5 V to 5.5 V
Average current consumption: 30 mA (note: this sensor draws current in large, short bursts, and the manufacturer recommends putting a 10 µF capacitor or larger across power and ground close to the sensor to stabilize the power supply line)
Distance measuring range: 10 cm to 80 cm (4? to 32?)
Output type: analog voltage
Features:
Name: electronic compass atmospheric pressure module (three-axis magnetic field + pressure)
Model: GY-652
The use of chip: HMC5983 + BMP180
Power supply :3-5v (internal low dropout regulator)
Communication modes: standard IIC communication protocol)
Description
Heart rate data can be really useful whether you're designing an exercise routine, studying your activity or anxiety levels or just want your shirt to blink with your heart beat. The problem is that heart rate can be difficult to measure. Luckily, the Pulse Sensor Amped can solve that problem!
Characteristic parameter:
Mounting way: Screen shield type
Detection distance: 10mm±10%
Set distance: 0-8mm
Response frequency: 1 kHz
Delay distance: 10% below of the detection distance
Detection object: Magnetic metal (the detection distance decrease when it is non-magnetic metal)
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)
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 )
