This page (revision-27) was last changed on 2021-08-30 01:49 by Murray Altheim

This page was created on 2019-12-23 11:18 by Murray Altheim

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Version Date Modified Size Author Changes ... Change note
27 2021-08-30 01:49 8 KB Murray Altheim to previous
26 2021-08-30 01:47 8 KB Murray Altheim to previous | to last
25 2021-04-17 10:32 6 KB Murray Altheim to previous | to last
24 2020-03-01 01:03 6 KB Murray Altheim to previous | to last
23 2020-03-01 01:02 6 KB Murray Altheim to previous | to last
22 2020-02-29 04:06 5 KB Murray Altheim to previous | to last
21 2020-02-29 03:49 5 KB Murray Altheim to previous | to last

Page References

Incoming links Outgoing links
KR 01
KR01

Version management

Difference between version and

At line 30 added one line
! Current Weight
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* __chassis__ (including motor controller, SSD, motors, and bumper assembly): 1.4kg
* __main board__ (including Raspberry Pi and all upper sensors): 400g
* __battery__:
** Makita 18V 3.0Ah: 730g
** Makita 18V 1.5Ah: 475g
** Makita 12V 1.5Ah: 210g
** Makita ADP05 clip: 125g (for use with 18V batteries)
Typical weight with 18V 3Ah battery: 2.6kg
!! Chassis
[{Image src='attach/KR01/KR01-chassis-0177-thumb.jpg' link='attach/KR01/KR01-chassis-0177.jpg' caption='Latest Iteration of the Chassis' align='right' class='imgFloatRight'}]
The KR01 uses a PiBorg ''[Thunderborg|https://www.piborg.org/motor-control-1135/thunderborg] Dual 5A Motor Controller with DC/DC & RGB LED'' for its motor controller.
The chassis currently uses a Pimoroni ''[HT0740 40V / 10A Switch Breakout|https://shop.pimoroni.com/products/ht0740-breakout]'' to control power to the sensors, to that the robot can go into a "low power" mode. There is a manual bypass switch in order to use the sensors without the 10A switch control.
The bumper assembly mounts to the front of the chassis, and includes six subminiature lever switches (wired as three), to detect port, center and starboard bumps. It also has three 15cm infrared sensors that look through the polycarbonate plastic of the bumper. The center sensor is slightly offset (as it tends to see itself in the mirror and just stays on).
The aft board is a Adafruit Perma Proto Bonnet, a PC board designed to fit on top of a Raspberry Pi Zero, here repurposed to provide dual header pins to provide connections to the upper board (see [KR 01 Wiring Notes]).
This page (revision-27) was last changed on 2021-08-30 01:49 by Murray AltheimTop