Grove - Hall Sensor
Sold outThe Hall sensor uses the Hall Effect, which is the production of a voltage difference across an electrical conductor, transverse to an electric current in the conductor and a magnetic field perpendicular to the current.
Overview
There is a continuous-time switch on this Grove module. The output from the module switches from low (turns on) when a magnetic field (south polarity) is perpendicular to the Hall sensor and when it passes the operate point threshold BOP it switches to high (turns off) when the magnetic field disappears.
The twig can for example be used to measure RPM of a wheel or a motor.
Features
- Grove Compatible Interface
- 400ns transition period for rise and fall.
- Continuous-time hall effect sensor
- Reverse current protection
Tech specs
Specifications
|
Item |
Min |
Typical |
Max |
Unit |
|
Supply Voltage |
3.8 |
5.0 |
24 |
V |
|
Supply Current |
4.1 |
- |
24 |
mA |
|
Operating Temperature |
-40 |
- |
85 |
ºC |
Get Inspired
An IoT Moisture sensor that sends moisture data from an Arduino Nano 33 IoT to the Arduino IoT Cloud
As climate change continues to worsen, events such as heavy rains, hurricanes, and atmospheric rivers have only intensified, and with them, large amounts of flooding that pose serious risks to life and property. Jude Pullen and Pete Milne, therefore, have responded by creating a "physical app" that can show the potential for flood dangers in real-time with sound, lights, and an ePaper display. The Arduino Nano 33 IoT powering the Flood Alert device sources its data from the UK Environmental Agency’s API to get statistics on an area’s latest risk level along with an extended description of what to expect. Initially, the electronics were mounted to a breadboard and housed within a cardboard enclosure, but a later revision moved everything to soldered protoboard, a 3D-printed case, and even added a piezoelectric buzzer to generate audible alerts. For now, the Flood Alert’s sole source of data is the aforementioned API, but Pullen hopes to expand his potential data sources to include “hyper-local” sensors that can all be aggregated and analyzed to give a much more precise view of flooding in a smaller area. To learn more about Flood Alert and its myriad applications to local communities and beyond, check out the original long read article’ is available at DesignSpark.
