Sonar has always been a fascinating subject, the green dash board and flickering dots representing enemy planes and submarines has never stopped fascinating the hobbyist.
We present a kit which helps you build your own sonar and it gives you a nice cool green dashboard application to run on your PC to see the enemy as the sonar sees it, in light green blips
You can have this kit mounted on your RC car, hobbyist Mars Rover or even the corner of your room to see every moving object. The kit will give you an insight of how sound can be used to see, just like a bat and dolphin does.How the speed of sound and the time it takes to travel is translated into a visual image for the user to see on his dashboard.
This kit gets a close to the feel of how the submarine operator saw moving enemy targets and saw objects far beyond their eyes could see.
The kit comes with all the hardware needed to get it completely going and a 3 step tutorial which walks you through the process of setting it up. Once the kit is setup, you are free to experiment with the source code and come up with your own cool hacks.
This kit takes measurement of its two precision temperature sensors, and logs the data to a SD card. Both real time readings and stored data can be sent wirelessly to a PC.
How is it useful?
One of the two temperature sensors is located inside the box, and the other one outside on a 1.2 meter cable. By locating the two temperature sensors in two different areas (e.g. indoor and under floor). We can see the temperature variations of the two areas over time. One good use case is to measure how good your home insulation is. Having said that, this kit is designed with DIY in mind. Extra sensors can be added very easily, and soldering is minimum because of the use of the sensor shield. By adding a humidity sensor, light sensor, wind speed sensor etc, this box can be turned into a wireless weather station!
What is included in this kit?
This wirless sensor and data logger kit embodies a few very cool technologies: Real Time Clock, SD Card read/write, Bluetooth and one wire digital temperature sensor. Not only can it be easily turned into a general purpose wireless sensor logger, it also is a fantastic educational kit after all. This kit includes all the neccessary bits to construct a fully working wireless sensor logger, the package includes:
Arduino Mega 2560
Arduino Mega sensor and servo shield
Real Time Clock module (onboard temperature sensor incl.)
SD card module
Kingston SD Card 1 GB
Cable gland x 2
Some wires and accessories
Follow this 3-step tutorial to assemble this amazing kit.
Android is a great platform to start building your apps, but its not the simplest to start with. For that reason we at hobbyist have built a kit which will take you through the process of building an App step by step. We start with the bare basics and eventually take you into building an app which does some fancyhome automation for you.
It covers the basics of app development and then delves into using bluetooth wireless to talk to Arduino platform. This paves way for reading remote sensor data from the Android tablet and use it as a dashboard for home automation and doing remote robot control.
What you can accomplish with this kit :
Learn the basics of Android App development
Simple Hello World App
Make the app talk to an Arduino
- Then read the moisture and temp of your garden
Read data from Arduino and turn ON devices with touch of a button.
- Now you can turn on Lamps, Tv's, Heaters right from the app
Send a message wirelessly to an OLED display via the app
- Make this your message board & leave messages to family/flatmates
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Want to wirelessly control a Mars rover from your laptop?
You are in the right place, this kit does exactly that. 10 minutes is what it takes to wire up the electronics, it doesn't even need soldering. For people who know programming, this kit is more than a remote control robot.
You can write program on your pc to communicate with the robot such as scheduling tasks and receiving sensor data (e.g. video, image, switch, temperature, light etc) from the robot. You can even control the robot on the internet!! The ways it can be used are endless...
This kit includes
Arduino Duemilanove 2009
4-way stripped wires and approx. 10 breadboard wires
All you need to add is 6 AA batteries, and a laptop with Bluetooth connectivity.
The Mars rover platform is a robust and easily adjustable track drive chassis that is perfect for robotics hobbyists. It has two DC motor built-in, and it's already assembled. A 6-slot battery case is also included. The height of the track wheels are manually adjustable.
Tutorials provided at the bottom of this page show you how to assemble it, and the available open source code demonstrates how to control the rover on the keyboard. 'e', 'c', 's', 'f', 'd' keys command the robot to go forward, backward, left, right and stop.
Specs provided by the manufacturer:
Dimensions: 245mm length x 225mm width x 74mm height
Adjustable height: 74mm-100mm
Ground clearance: 21mm-50mm
Operating voltage: 7.2V
Operating current: 160–180 mA
Maximum speed: 30 cm/s(speed can reach 42cm/s at 12 V)
Maximum climbing angle: > 30°
Maximum payload: > 7.5Kg
Note: the specs above should only used be as a reference, performance of individual platform may vary due to manufacturing tolerance, battery type and operating conditions.
Please see our 3-step tutorial on how to make a bluetooth robot:
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