Electronics Project Center - Part 2

[niceguypants]

I'm not sure how often you need to gain access to the innards, but as a 'Woodist' I recommend using another fastening of some catches/ latches if you are regularly getting the screwdriver out. Another way of preventing the breadboard bank from sliding could be sticky-back Velcro, great stuff for many things.

[niceguypants]

That's a great bit of kit. I have next no clue what most of it's for mind. I've got a Maxitronics kit, a few books, a beginners PIC project and a programmer board but absolutely no time to commit to learning more than basic electronics taught to 11year olds, though with the vids I see on YouTube do inspire me to. If anyone can suggest an easy/quick resource for learning the basics please let me know.....

[CassetteMaster]

Very neat! I made a much more basic project board in 2004. I had breadboards mounted on a wood case and had 2 adjustible power supplies built in. One a positive LM317 and the other a negative LM337.

[tatter0035]

Hi please make more Videos, like the one about the Joule Thief useing multiple led's & incorperate the 555 time in a different video to make the lights blink....Excellant project box too David

[davidbball13]

what divide IC did you use

[magidavid]

74LS390 - Dual 4-Bit Decade Counter

[davidbball13]

thats what i i thought,thanks man

[cyclissmo]

Brilliant!

[zacatecastambor]

love your intelligence of desing, but take care of your health.

[magidavid]

The 7404 is a 6 gate straight inverter that takes a signal and reverses it. So a high becomes a low and a low become a high. I put these inline with the I/O signals from the processor to help isolate it from directly driving external circuits. This puts the risk of a current overdraw on the 7404 and not the processor. This way, if a short occurs the 7404 will take the damage instead of the processor, but, if the current draw is excessive it's still possible to damage other components.

[minniemoi]

hey there this was an awesome invention of yours I have 1 question if it is possible to explain how 7404 inverter works as combined with processor and helps processor to escape any short or over heating like you explained.