The Hall Sensor measures the Hall Effect, which is a production of a voltage
difference across an electrical conductor, transverse to an electric current in
the conductor as well as a magnetic field perpendicular to the current. The
output of the continuous-time switch Hall sensor on this Twig switches low and
turns on when a magnetic field (south polarity) perpendicular to the Hall sensor
exceeds the BOP threshold, and it switches high and turn on when the magnetic
Grove - I2C ADC is a 12-bit precision ADC module based on ADC121C021. It
helps you increase the accuracy of value collected from analog sensor by
providing a constant reference voltage. Because its address is changeable, you
can use up to 9 I2C ADC at the same time at most. At the other hand, this module
provides auto sleep function which lowers the power consumption considerably.
This module is based on the color sensor TCS3414CS with digital output I2C.
Based on the 8*2 array of filtered photodiodes and 16-bits analog-to-digital
converters, you can gain the color chromaticity of ambient light or the color of
objects. Of the 16 photodiodes, 4 have red filters, 4 have green filters, 4 have
blue filters and 4 have no filter(clear). With the synchronization input pin,
external pulsed light source can provides precise synchronous conversion
Grove - OLED Display 1.12" is an OLED monochrome 128×64dot matrix display
module with Grove 4pin I2C Interface .The characteristics of this display module
are high brightness, self-emission, high contrast ratio, slim outline, wide
viewing angle, wide temperature range, and low power consumption. It has bigger
screen and uses all the columns from the SSD1308 chip so that it can display
more contents than the OLED 96×16.
Grove - LED is designed for the beginners of Arduino/Seeeduino to monitor
controls from digital ports. It can be mounted to the surface of your box or
desk easily and used as pilot lamp for power or signal. Its brightness can be
adjusted by potentiometer.
This temperature & humidity sensor provides a pre-calibrated digital output.
A unique capacitive sensor element measures relative humidity and the
temperature is measured by a negative temperature coefficient (NTC) thermistor.
It has excellent reliability and long term stability. Please note that this
sensor will not work for temperatures below 0 degree.