Category: Blog

Radio flea market Lummen (Dirage) 2012

Today there was a Radio flea market in Lummen.

What I bought (for 32€):

1x Wireless mousse
1x Number keyboard
1x bag solinoids
1x bag of Micro-MaTch connectors trough hole
1x bag push buttons
1x bag power switches
1x bag flex wires
1x Nylon M3x10 bolts
3x bag circuit board screw connectors
1x bag 4mm bearings
6x bag rollers with bearings
2x bag rubber feet for enclosures
1x reel Micro-MaTch connectors SMD (about 280 pieces)

Radio flea market Bladel 2011

Today there was a Radio flea market in Bladel. What I bought (for 45,50€ including entrance fee):

-2x 256MB SD ram
-1x LCD Display
-1x Bag of long headers
-1x bag nylon screws M4x30
-1x Transformer 18V 16VA
-3x Transformer 18V 5VA
-1x Reel Osram SMD RGB Leds (1200 pcs)

New soldering iron

The past few years I did my soldering with a Aoyue 936 and a Velleman vts25, but the Aoyue was underpowered and the Velleman needed a new tip every few months and isn’t temperature controlled.

So it was time to buy a new one. I decided it would be a Weller WS81. There was an action to get it with a free dry cleaning station, so I got that too.

Wire tugged away.

Dead Battery

One of the Batteries from my Bosch cordless drill machine had died. I could buy a new one but that is rather expensive. So I opted to take the batteries out and put a cable on it. The cable plugs into my 12V power supply that powers my lights etc.

The cells inside (5 cells at 0V):

I have mounted a cable gland in the plastic enclosure from the old battery so I have a strain releave for the cable.

Plugged in the drill:

I added a diode to the power supply to protect my power supply against voltage spikes from the motor.

The downside of this is of course that I have a cable connected to it now. But I still have 1 battery that functions so I can still work wireless :p. But if I’m working at the workbench and the battery is flat, then I can use the cable to avoid waiting for the charger. Another downside is that my LED lights dim as I start the drill, this is because it draws too much current. The power of the drill isn’t as big as on the battery. My power supply delivers 12V while the battery does 14.4V.

Updating my network

I was using my network more intensely to transfer files the last weeks. And I got tired of waiting, so it was time to update my network. So I ordered a new switch and router from de-computershop.be, and today they arrived :).

My old “fast ethernet” 100Mbit/s equipment:

Linsys WR454GL 4 port router
D-Link DES-1005D 5 port switch

My new “Gigabit” 1000Mbit/s equipment:

Linsys E2000 4 port router

Cisco SD2005-G2 5 port switch

The new gear is working great, the only downside is that you need to install a config program on the pc to config the router. It has a build in web interface, but it doesn’t cover all the settings :s.

Radio flea market Eksel 2011

Today there was a Radio flea market in Eksel.

What I bought (for 37€ including entrance fee):

  • 2 4700µF 40V capacitors
  • 1 bag of pcb screw connectors
  • 1 bag of Micro-MaTch connectors
  • 1 bag of Micro-MaTch to pcb soldering Micro-MaTch flatcable connectors
  • 2 bags push buttons
  • 1 bag of LM1117MP-3.3
  • 1 bag PI filters
  • 3 bags fused Euro net entrances
  • 3 camera modules with macro lens
  • 1 pc power supply
  • 1 plastic box 255x200x80mm

Pictures:



I Won Something In The 555 Contest!

I received an email from Chris Gammell, that I won a prize in the 555 Contest. It is one of the door prizes :).

What I won: $20 to SparkFun and 40 555 Timers from HackHut

Thanks HackHut and SparkFun!!!

Radio flea market Lummen 2011

Today there was a Radio flea market in Lummen.

What I bought (for 51€ including entrance fee):
1x Power supply 48V 600W
1x Crimping tool for amp connectors
6x Capacitor 4700µF 50V
1x Solid state relais
1x Camera module
10x knobs

CD Storage box

My dad’s car has a cd storage box in the dashboard. My car had a simple storage box which is not as handy with CD’s (especially when you are driving). So I bought a CD storage box on eBay and replaced the one in my car.

Before:

After:

555 Contest Entry

This is my entry for the 555 contest. I didn’t have much time to make something so the entry isn’t much.

This design is a fan controller. The base of it is a simple pwm circuit with the 555 timer. The problem with fan’s is that they don’t start at low voltages. So I added a capacitor (C2) to give it a little voltage boost at the startup.

 

[youtube]37ZOpoyEyEs[/youtube]

The circuit can also be easily adjusted to have a soft start. This can be useful when driving led’s etc. This way the light is not instantly bright.

[youtube]Atu8LhJ7k34[/youtube]