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.
This water sensor module is part of the Twig system. This sensor works by
having a series of exposed traces connected to ground and interlaced between the
grounded traces are the sens traces. The sensor traces have a weak pull-up
resistor of 1 MΩ. The resistor will pull the sensor trace value high until a
drop of water shorts the sensor trace to the grounded trace. Believe it or not
this circuit will work with the digital I/O pins of your Arduino or you can use
it with the analog pins to detect the amount of water induced contact between
the grounded and sensor traces.