Hacked Gadgets Forum

September 24, 2014

Realtime GPS Vehicle Tracking Sends Data using GSM

at 7:19 pm. Filed under Cool Gadgets, DIY Hacks, Electronic Hacks

conjunto_gps_small 

 

If you like the idea of having a GPS tracking device in your car to monitor the actual location of it there are some devices that you can simply purchase like the  SilverCloud we saw before. But if you like to build things yourself have a look at the Realtime GPS Vehicle Tracking device that Sends Data using GSM by the guys over at Cooking Hacks. Not sure what this has to do with cooking but I am not one to talk…

“It will send you an SMS with the location, longitude and latitude at the moment, and it also sends GPS data to a web server with the realtime position (Google Maps). Thanks to the GPS+GPRS shield you can track your car in realtime. This shield is programmed to recognise your number and only if it is correct it will send you this data.”

 

 

sim908_1_big


September 15, 2014

Thermostat Remote Temperature Sensor Hack

at 8:44 pm. Filed under DIY Hacks, Electronic Hacks

 Thermostat Remote Temperature Sensor Hack_8399

 

We all have thermostats in our houses but how often are they in a horrible place? You often want to place the temperature sensor in a different location than the control and display unit. There are lots of models that have remote sensor capability but they come with a high price. If you already have a thermostat and just need the temperature sensing to be disconnected from the control unit you might be able to simply remove the sensor and mount it remote to the unit and connect it with a few wires.

That was the ideal solution to my dilemma. I recently acquired a building which has a central hot water boiler system, this means that the boiler is either firing and pumping hot water through all of the rads in the building or it’s off. There was one thermostat in a single suite to regulate the heat in the entire building. This normally works fine since most suites will have similar heating requirements as long as the radiator placement is well laid out. Big issue with this setup is that you need to provide 24 hours notice to adjust the temperature. I wanted to continue to monitor the temperature from the same location the thermostat was but I wanted the control to be in the mechanical room. I used the same thermostat wire to go from the thermostat to the temperature sensor and used a new wire from the thermostat to the boiler. The boiler control is a simple N/O (normally open) contact that closes to call for heat. So far the system is working great! I have tweaked the temperature once with no bothering of the tenants.

The model of the thermostat is a White Rodgers Model 1F178 NON_PRGM, this one is the non programmable style. As you can see from the board inside the unit and the LCD the programmable version is identical except for some magic that must happen in the factory to “make” one version programmable. I am sure the thermistor in both units will be identical so upgrading to the programmable version might be something that will happen soon. 

The future goal for the system is to mount digital temperature sensors in each suite and other various rooms such as the laundry room and mechanical room. These sensors would come back to a microcontroller based device to make heating decisions. This would allow for a nice average of suite temperatures to be used and also monitor rooms like the laundry room for freeze danger. The stretch goal would be to push some data from the system onto the internet with no internet connection on-site.

If you are interesting in having a look at some hi-res pictures from this project, you can see them here.

 

 

Thermostat Remote Temperature Sensor Hack_8391

 

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September 14, 2014

Cassette Tape with Hidden MP3 Player

at 9:38 pm. Filed under Cool Gadgets, Electronic Hacks

 Cassette Tape with Hidden MP3 Player_4

 

Remember cassette tapes? These were small devices that held a spool of plastic covered in rust and allowed us to record audio onto,  if you were brave you would even store your Commodore 64 programs onto them. This Cassette Tape with Hidden MP3 Player project looks just like a Cassette Tape but has a Hidden MP3 Player inside to allow you to hold a full case full of tapes worth of music. The user interface is interesting since it uses the reels to interface with the internal player.

 

Cassette Tape with Hidden MP3 Player

 

Cassette Tape with Hidden MP3 Player_3


September 4, 2014

HLK-RM04 Serial to WiFi Module

at 10:45 pm. Filed under Educational, Electronic Hacks

HLK-RM04 Serial to WiFi Module

 

If you are looking to add some WiFi connectivity to your next project the HLK-RM04 Serial to WiFi Module might be just the thing if you want to go wireless. The $10 HLK-RM04  module handles all of the WiFi overhead so your microcontroller project can simply send serial data to it using the TX and RX pins. RAYSHOBBY.NET has a great tutorial including code to get you started with this module.

Via: Dangerous Prototypes

“The chip (RT5350F) is a 360MHz MIPS core with built-in WiFi support. The module is quite powerful — at factory default settings it functions as a normal WiFi router. Now, in order to get it to talk to a microcontroller like Arduino, I need to use its Serial-to-WiFi capability. What is that? Well it means using the serial (TX/RX) interface to send and receive Ethernet buffers, and similarly using serial to send commands to the module and query or change its current status. This is quite convenient because first, it only takes two wires (TX/RX) of the microcontroller to talk to the module, second, it moves WiFI-related tasks to the module allowing the Arduino code to be very much light-weighted. “


 

August 27, 2014

Spray Chalk Machine

at 9:38 pm. Filed under Crazy Hacks, Electronic Hacks

Spray Chalk Machine

 

Wanting to make an impact on the sidewalk quickly? This Spray Chalk Machine is sure to get that done.

“This device is controlled by two Arduino Duemilanove boards, which apparently base the chalk “dot” timing on encoders sensing movement in the two wheels that the cart rides on. ”

 


August 19, 2014

Binary Wrist Watch

at 9:31 pm. Filed under Cool Gadgets, DIY Hacks, Electronic Hacks

 Binary Wrist Watch

 

Check out this great Binary Wrist Watch. It’s a true watch for the geek since most won’t be able to read it!

Via: Dangerous Prototypes

“The time setting mode can be entered by holding the left button for two seconds. After that the display is blanked and the time can be set bit by bit by switching through the bits by pressing the left button. If the bit is to be set, the right button has to be held down for one second. The watch automatically enters normal display mode after the last bit has been set (once you’ve gone through all the bits).”

August 12, 2014

Dummy Load Build

at 10:29 pm. Filed under DIY Hacks, Electronic Hacks

 Dummy Load Build

 

Wigman27 on the EEVblog has built a great looking Dummy Load. The nice and bright 4 line LCD display shows us voltage, current, resistance and power. This gives some great detail at a glance. The large lugs on the front and simple adjustment knob interface make this a great addition to your bench. The thread is interesting, he discusses the circuit design and shows some nice pictures of the bare PCB that was custom made for the project.

 

Dummy Load Build_2

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