On Wednesday, we went to visit the Evergreen and Hollywood Veggie. The purpose of the visit was to find a problem, which will have to solve. After looking for information in the Evergreen, we got a problem. The problem was about the lighting system, and emergency ropes.
In the second week we were in Singapore. We’re doing some kind of research to create a lighting system with Raspberry-Pi. After discussion with the group, we agreed to make the Automatic Lamp System. This system uses the principle sum. When people go into a room, the sensor will count +1, and if there are people out of the room, then the sensor will count -1. As long as the value of the sum is greater than 0, then the room lights will turn on.
We decided to make an Automatic Light System simulator. Once we agreed with our project, we bought equipment and components we needed. After getting the materials we needed, we started working on our project. We create a program for the sensor, arrange sensors on the doors. Sensors made of two pairs of infrared transmitter receiver.
Sensors are arranged side by side, so that when someone comes from the right side to the left past the sensor, then +1, if from the reverse side, then -1. After successfully with sensors, we try to add other features to press the remote as an emergency ropes replacement. Initially we did not know what to use. Then Mr. Jason bought us a remote control relay.
This is Radio Frequency Remote, so that it can be used even obstructed by the wall. We have not used this remote module, so we had to try it. After successfully find a way of operation, we immediately add it to our project. How do remote module work is to emit radio signals at a certain frequency, then the signal received by the receiver, then the signal is converted into a logic 0 or 1 (low or high). The logic then used to drive a relay. So that the movement of this relay, then we use to turn on the alarm bell.
We also added a master switch to turn off all systems, especially when the user wants to sleep. In addition, the system will turn off automatically when no one in the house.