Human Comfort Sensor
This project is an attempt in creating a low cost weather station sensors in order to measure the level of human comfort in that area. The sensors are compossed of wind speed sensors, black globe temperature sensors, temperature & humidity sensors
Contents
Windspeed Sensor progress
DC motor prototype
We tried to build a windspeed sensor from scratch, the first sensor are make using DC motor as a base. The idea is we will have the wind to turn the propeller that are attached to the dc motor and have the motor act as a generator. Turns out this method is not viable to be use for windspeed sensor application as the motor have a stall torque that are preventing it to turn when the windspeed is below 1 m/s.
Hall effect protoype
For the second prototype we tried to use a more popular method to measure windspeed which is to use a hall effect sensor and magnets. The sensor works by having the hall effect sensors to trigger when there's magnet on top of them and the hall effect sensor measure count the amount of time the magnet triggers the sensors.
- Second prototype using hall sensors as a switch. issues found: material that are used from 3d printing is not going to last long.