Thursday, November 28, 2013

Satellite Gear Modding:Adding fans to AZAmerica s900 sat reciever + Ibox

The both of them run really hot, hands into matter, ordered two flat vga fans from aliexpress (THIS).

Az America s900:

Disconnect all equipment from AC !!!!!

Take out the cover, and disconnect the power source, and all other cable attached to work comfortably. Here we go!

 Once opened just locate some pins that can provide some acceptable voltage. See next picture, I found a 5v and ground. (5v will garantee a smooth operation)
 I simply pinched into the cables, before the entered the next connector, and tested. After that, I just simply attached up from the heat sink.

Always test, check, and then re fit all back togheter.


Disconnect all equipment from AC !!!!!
Simple 4 screw on the back of the box. 
Disassemble and you get this, there's the tiny heat sink.

The power jack is ideal, since ibox runs on 12v (check you power source), look at the back of the board, and use one of the holes to pass the cables to the back.
Once tested with which pins does it work, solder and test. Just to keep it on the safe side, you can add some glue-gun in order to isolate.
Once in position, see that the blades does not hit any component on the top board. I used some screws to attached the fan into the top cover.

Put the box together, and ready to go, if the fan is too noisy you can add a 10k potentiometer or a resistance.

Monday, November 18, 2013

Anti Rain flood system - Arduino water pump Automation

Been having some trouble at home due to a poorly designed water drain, heavy rains just put at risk overflowing with the drains capacity, I got some problems after getting some water inside my house so I took matters into my own.

The idea is to have and automated system to drain the water out of the "warning zone" out to another place, another idea is to harvest this water if you have the place to store some big containers.

Target: have a fully automated system that can measure the water level and in case the level is near the "warning" level, it activates a water pump to lower the level. As a secondary target the idea is to see the level in real time through a web page.

Bill Of Materials:

Arduino (using UNO, will port to pro mini)

Network shield ENC28j60

Distance measuring module HC-SR04

5v relay module

Old wireless repeater DLINK

Water pump 1/2 horsepower

Enclosing box

Power cord & extension

Hose & quick connectors connector
Pvc tube
Ping pong ball
General materials: glue, soldering iron, electrical tools

Here are basic schematics for this project:

Tube assembly:
Tube assembly
Block Diagram:
Housing block diagram
Phases for this project:

Phase 1: get the basic software working. Code the basics for the arduino to measure the distance and upon threshold, activate relay.

Phase 2: building the container for outdoors. Using an hermetic plastic container (a big tupperware :) ), fit all the parts in there, water proofing it, build the pvc tube with the sensor container.

Phase 3: initial testing, a data analysis.

Phase 4: attach wireless repeater in client mode, using network module to: monitor system from web, upload measurements information to mysql database.

Stay tuned for how the project evolves.

Wednesday, November 13, 2013

New toys! Lets gets started!

New toys arrived

Last shipment arrived to I can finish an automated pump system, measuring water level with a HC-sr04 sensor module. IMG 0880 Some other goodies also arrived to make projects work more tidy.