It's a two device setup. There's the actual motion detector and an optional wireless device to monitor everything remotely. There's 4 modes on the motion detector.
Modes:
1)Alarm mode with no wireless transmitting
2)Silent mode with wireless transmitting
3)Alarm mode and wireless transmitting
4)Range detector
The project is approximately 40% done, there's a bit more coding to do and a hardware casing for the remote monitoring device. First two modes have been completed and it works like a charm, albeit a lot of effort and time was exhausted in trying to get it to work this far. Hopefully I'll be done with this project soon and have a video of it in action uploaded soon. Stay tuned. Video up!
If you had seen my Arduino RC car video, I mentioned that I wanted to build a faster Arduino car, well, I finally found the 2mm drill bit that I needed and proceeded to drill a hole in the axle and attach the technic axle onto the shaft. If your interested in doing it yourself, you have to first drill a hole in the middle of the axle, maybe halfway through. Make sure it's as straight as possible. Next, you'd want to slot the axle onto the shaft. Then use some super glue to attach it permanently. Make sure not to spread the super glue onto the motor so that it can still spin. Now all that's left is to attach a lego piece onto the motor frame for easy attachment to other Lego pieces. I hope to incorporate this motor in some upcoming projects. In the meantime, stay tuned for a cardboard + Mindstorms + Arduino humanoid that I've been working on during the holidays.
15/1/16: Man have I been busy over the past few days! Form 4 life has been extremely hectic due to the new subjects I was introduced to. There's Biology, Add maths, Chemistry and physics, all resulting in an extremely busy schedule. I truly apologize for the lack of content and for forgetting about working on the RC car. Hopefully I'll be able to squeeze out some time to start working on it asap.
I realized it's been quite a while since I last posted anything abd I will admit, I was getting a bit lazy as of late and it's probably due to the school holdiays. But, despite my laziness getting in the way of my productivity, I have been learning a few things here and there regarding the Arduino. Specifically,I have been reading into wireless communication devices so I could build a rc car. Well, I managed to pick up a pair of rf transmitter and receiver and have successfully built my own working remote control. Here are some photos:
Let me explain about this project a little bit.
This car is built out of Lego Mindstorms components, at the heart of the car is an Arduino Uno, powered by a 9volt battery. I also have a 3cell 2200mah 11.1 volt battery powering the motors and my L298n motor driver. The motors are Mindstorms nxt motors. Note that if you are keen on doing something like this, be sure not too supply more than 9 volts as this motor is rated at 9volts. I'm also using a 315 MHZ radio frequency transmitter and receiver.
The range I'm getting is quite decent, which is about 20m, through walls (I was inside my house and was controlling the car which was outside of the house). This is certainly not the best, but considering I paid only RM9 (2.09USD), I'm fairly impressed.
I'll be updating this post with a video and the code so stay tuned.
Update #2 Here's the code I used for this project:
Hello, let me explain a little bit about our project.
Our project is code named project MECH. This is short for Mechanically Enhanced Crisis Handler.
The main purpose of this project is to help miners with their mining tasks and also to enhance their safety.
Find out more in our full written report.
