Difference between revisions of "BarBot/Components/Stirrer"

Revision as of 21:14, 27 June 2014

Stirrer

General Description

Sorry Mr Bond, our BarBot cannot do a shaken Dry Martini!

The BarBot stirrer consists of a "swizzler" attached to a recycled printer carriage mechanism. The carriage and swizzler motors are controlled by a ATtiny85 and L298N dual H-bridge. The cycle is started by grounding the /RESET input of the ATtiny85. It then lowers, swizzles, lifts a little, shakes off the drips, then raises to the top.

Notes:

Watch out for the shake!

Mounting & hardware

The printer carriage mechanism has a few holes that can be used for mounting. It needs to be positioned such that the swizzler is in the liquid when it is at it's lowest point.

Logical

To start the cycle the /RESET line of the ATtiny85 needs to be taken low. One cycle takes approx 16 seconds to complete.

Connections

+12V
Ground
/RESET ("start" signal)

Power

+12V, TBC mA

Bling

None really! However, there is a red LED on the L298N module which illuminates when power is available.

@@ Line 6: / Line 6: @@
 The BarBot stirrer consists of a "swizzler" attached to a recycled printer carriage mechanism. The carriage and swizzler motors are controlled by a ATtiny85 and L298N dual H-bridge. The cycle is started by grounding the /RESET input of the ATtiny85. It then lowers, swizzles, lifts a little, shakes off the drips, then raises to the top.
-[["File:20140627 160043 resized.jpg|none|600px|BarBot Stirrer]]
+[[File:20140627 160043 resized.jpg|none|600px|BarBot Stirrer]]
 Notes: