Let's Make Robots!

An even cheaper Wi-Fi board


For a few cents more than the ESP12F you get it with a programmer daughter board, a RGB led, a button and a photoresistor.
This is ideal for small robot with networking abilities.
Can be programmed with Arduino IDE as a NodeMCU v1.0 .

Component list -arduino nano clone(or an arduino uno) -6 male to female jumper wires -usb b to mini b cable -smartphone powerbank with usb(or 4 nimh AA) -2 … Read more

Roomba hardware hacking

I recently got 5 broken Roomba robot, with the purpose of scavenging useful parts and trying to assemble one frankenstain style.
Motors are working!

The motor assembly is always working, is the sturdiest and more reliable part of the robot.
The motor has an encoder, which is analised on the motherboard, an endstop switch which connects when wheels are pressed against the ground and a spring that compress between 800 and 1200g.
The motor assembly weights ~250g.
Motors are powered at 12v dc.

The <20€ European open robot kit v1

The purpose is to make a bill of material to make an easy to build, easy to hack, cheap and full of features robot.

There are various builds, so it's better to list components that fit the bill (easy to use, cheap and readily available from arduino kits and chinese e-commerces)

Microprocessor

Modular esp8266 local network

Goals

  • user needs to configure only the first module
  • as easy as possible to add new module
  • each module has a purpose
  • modules know what modules are online
  • accessible singularly
  • wireless configuration

Actions history:

Solar powered motors

Test with solar panels and motors!
3 solar panels give enough current to move a couple of these popular 3-6v motors, with 6 470uF capacitors as buffer.

I will test soon with an arduino nano and a driver:)

https://www.youtube.com/watch?v=WwsQU5sobn0

Parametric Printable Meccano

Here a link to a parametric meccano model.

If you know really little about OpenSCAD you can easily configure this file to make meccano-like pieces.
I modeled it because i need often to whip up a mechanical prototype, for hackatons, demo or just playing around :)
At the moment there are the plain piece, the 90° and 45° bent pieces and the C shaped piece, like in the image.