• Date JoinedMar 7, 2006
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randofo's Instructables rss

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hmalik34 months ago

I really love your all instructables specially the romance pants was really special and helpful for me .

JaavarSingh4 months ago

Informative instructables i am loving it.. Thanks for following me.

jbrandine8 months ago


Wow this was a surprise. I've been doing a ton of instructables lately and guess what i stumbled upon yours (which are the best) and i'm like holy G this is my college roommate. I have some funky projects to work on.


im trying to modify a "useless machine" - the one that sticks an arm up and switches itself off.

the aim is to make my cars GPS unit pop up (stand up @ 90 degrees) and "lay back down?" when i switch the ignition on and off.

using modified servo's or gear boxes i can sort the mechanics out however, my major complication is the electronics- switching the power off once the unit is upright, reversing the power and switching the power off once the unit is back down again.

you may ask why all the effort , main reason is because it would be cool, then there's the security (people breaking into your car to steal it which happens often)

this may seem like a stupid idea but im a diy enthusiast.


I think this allows you to interface your cars "electronics".

If it does connect it to the arduinos RX and TX pins.... And then connect the arduino to the motor and just program it with some "if" commands, and actually that's a cool project, Its not stupid.

marshath1 year ago
hi randofo, the program is only to start off the watering rite..?? how do i stop the pump frm watering once the moisture sensor senses enough moist? could you send me the program? at . i am using this as my collage project and i would greatly appreciate your help here.
DesertAz marshath11 months ago

Use a "analog input" and a "while",

const int moisture = A0; //or what ever pin you want

//other code

void setup(){

pinMode(moisture, INPUT);

//other code


void loop(){

while(moisture < ????){

//pump HIGH code


while(moisture > ????){

//pump LOW code



elizabethswan12 months ago
Hi Randy... thanks for following ;-)
please reply to
Hi Randy, with a little delay... thanks for following ;-)
I'm very thankful to you sir because of your works....
belsey2 years ago
Is that your useless machine I saw on Think Geek's website? Congratulations! I like your wooden box better than their kit, but it's great that your genius idea is now available to the thinking masses... I hope they distribute your candle powered LED lamp too. I never thought the useless machine could be topped, but you did it!
randofo (author)  belsey2 years ago
Nope different useless machine. I was not the first to make one. Was first posted the author saskview (who also used a wooden box). I was just asked to make one for display at Maker Faire. Nonetheless, perhaps one of these days I will be able to turn one of these things into a nonsensical product. So far no luck.
dany1512 years ago
dear .. i wanna circuit diagram of the connection between the 2 joysticks and ardunio....the interface circuit...any information about hacking jc2000 joystick will help me in may project pls....waiting for your replay
BLUEBLOBS22 years ago
200th Instructable! Congrats!