This module is based on a high precision ZMPT101B voltage Transformer. This module makes it easy to monitor AC mains voltage upto 250 volts. This module comes with Multi-turn trim pot which can be used for adjusting the Analog output.Using ZMPT101B AC Voltage Sensor you can easily measure main voltage using Arduino or even Raspberry Pi (external ADC required)
The 20A Range Current Sensor Module ACS712 consists of a precise, low-offset, linear Hall circuit with a copper conduction path located near the surface of the die. Applied current flowing through this copper conduction path generates a magnetic field in which the Hall IC converts into a proportional voltage.
It can measure the static acceleration of gravity in tilt-sensing applications, as well as dynamic acceleration resulting from motion, shock, or vibration. This breakout board comes with an onboard voltage regulator and works at both 3.3V & 5V (3-5V).
The ADXL345 IIC / SPI Digital Tilt Sensor Accelerometer is a small, thin, low power, 3-axis MEMS accelerometer with high resolution (13-bit) measurement at up to +-16 g. Digital output data is formatted as 16-bit too complement and is accessible through either a SPI (3- or 4-wire) or I2C digital interface.