Let's Make Robots!

Happy 2013 LMR!

Cheers to the New Year!

 

Have a good one dear buddies at LMR!

Robocop...ies

Sometimes, there are robots that are good as they are. It's not worth even to try to do my own spin of them. But because I like them so much I would like to have them/build them. So, I dedicate this blog post for reporting my assemblies of robot copies of other people famous robots in which I've just followed the instructions.

 

 

ALF - Analog Line Follower: http://letsmakerobots.com/node/33449

 

makes 'handy' holes on PCBs
Do you lack power tools (power drill, dremel, etc)? are you wary to use them? are you unable to get proper drilling precision because  you lack a drill stand? … Read more

Boards & Boards (to get you bored) -- a log of homebrewed circuits coming to life...

I decided to make a blog to serve as a log for the boards I design and/or produce... well mostly because I can. So here it goes.

NOTE: Older boards at the bottom, newer at the top. So do bottom-up read if you're after a chronological perspective.

 

05 - Practice makes perfect (eventually) OR the h-bridgemania

Sketchy businesses -- my 3D parts modelling log...

Well, currently there's not a day that goes by without me reading someone talking about 3D printing, 3D printers and whatnot. Also, I've been reading of how easy SketchUp is to work with, so given my failure to make anything of Blender around almost 10 years ago... I decided to give SketchUp a try.

Note: Newer designs are at the top (for chronological reading start at the bottom of the post)

 

02 - Second practical motivation:

R/C with arduino & NRF24L01+ 2.4GHz Antenna Wireless Transceiver Module

 

October, 11th 2012

Well, my prototype remote controller is nearly finished now.

Bellow you can see the ON/OFF switch placement (that's for you Hoff).

The backside of the board after a hand of nail polish (yeah, I know, yet another archaic method). Also notice the little blue jumper wire that I had to add to correct Eagle's auto-routing mistake (and my blindness to detect it at the that time).

Too high voltage drops across different TIP-based motor drivers?

So, I needed to drive a couple of mystery motors I've harvest from a "electric shaving kit". I had a big motor, extracted from the electric razor and a tiny motor extracted from the nose pliers.

My needs:

big motor -- drive it one way; small motor -- drive it both directions

Case 1: Handling the big motor

doubts regarding circuit protection fuses

So, overall I know what a circuit protection fuse is and what it's purpose. I also know that are several types of fuses, in many shapes and forms, one-time-only and resettable (self, or non-self), slow and fast acting and some of rules of thumb for when using one or the other. However, my personal experience is only limited to often trigger the circuit breakers of my mains power supply (by either drawing to much current or shorting stuff [as a kid *cough* long time ago]) and blowing a few glass fuses.

Of mice and men...

UPDATE: This project is now complete. Further details can be seen at GhostRoachMouseBullRam project page. You can still read below to see my adventures and problems encountered this project.

[SOLVED] toggle ON/OFF remote LEDs

I can't believe I'm just about to ask this... but it has been a nasty weekend and despite all I've managed some progress. So yeah, now a feel a little silly at throwing the towel at some LED toggling.

So, I have a prototyped remote (TX) that send X, Y info from a joystick plus four buttons. The information is transmitted as an array in the shape of:

[XXX, YYY, A, B, C, D]