Summary of RoomMote- Control the color and sockets of your Room using a Remote, MSP430 and Energia
This project addresses the annoyance of nocturnal mosquitoes by automating mosquito repellent control, eliminating the need to manually turn devices on or off. The creator chose the MSP430G2553 microcontroller for its low power consumption and ease of use with Energia software. The system utilizes a ULN2803 driver chip to manage relays and an RGB LED strip, allowing for potential future expansions like lighting control via remote.
Parts used in RoomMote:
- MSP430G2553 Microcontroller
- ULN2803 Octa Darlington Chip
- Relays
- RGB LED Strip (12 LEDs)
- Energia Software Environment
Buzz..Buzzzz..buzzzzzzzz .. That is how a lone mosquito irritates you in the middle of the night trying to convince you that his lullaby is helpful. Insignificant or not, But truly that is the underlying inspiration for this project. The Mosquito repellents have this obnoxious smell that I would not like to sleep in and these loner mosquitoes who just piss me off by buzzing in the ear, you have to choose a lesser evil. Obviously, I turned ON the repellent and in a while it goes off but the smell starts building up and I am too lazy to turn it back OFF, leaving the warmed blanket on a chilly Delhi December Night. The nocturnal dilemma .
For the recipe, the main ingredient is MSP430 as I was able to get it in a desired TSSOP package from TI itself (The local sellers don’t seem to like SMDs), Its easy to play with thanks to Energia and best of all – Low Power .
I chose to use MSP430G2553 as i already had the chip in DIP to prototype with.
For driving the relays and the RGB LED strip ( a small part of the bigger strip with actually just 12 LEDs ) , I used ULN2803 , the octa darlington chip. And Yes ! I didnt use opto isolation for the relays.
So, why not just use a remote to turn it back off and maybe add some other things like Reading Light control, Mood Lighting?
Interesting !!
For More Details: RoomMote- Control the color and sockets of your Room using a Remote, MSP430 and Energia
- What inspired this project?
The project was inspired by the annoyance of lone mosquitoes buzzing at night and the unpleasant smell of traditional repellents that users are too lazy to turn off. - Which microcontroller is the main ingredient?
The MSP430 is the main ingredient, specifically the MSP430G2553 chosen because the author already had it in DIP package. - Why was the MSP430 selected over other options?
It was selected because it is easy to play with using Energia and offers low power consumption. - How are the relays and LED strip driven?
A ULN2803 octa darlington chip is used to drive the relays and the RGB LED strip. - Did the design include opto isolation for the relays?
No, the author explicitly did not use opto isolation for the relays. - What future features were suggested for the system?
Future ideas include adding reading light control, mood lighting, and controlling room sockets using a remote. - Where did the author source the MSP430 chip?
The author obtained the desired TSSOP package version directly from TI since local sellers do not seem to like SMDs.

