This page contains some miscellaneous notes about wiring on the [KR01] robot.

[{TableOfContents}]

!! I2C Bus

{{{
 ► i2cdetect -y 1
     0  1  2  3  4  5  6  7  8  9  a  b  c  d  e  f
00:          -- -- -- -- -- -- -- -- -- -- -- -- -- 
10: -- -- -- -- 14 15 -- -- -- -- -- -- -- -- -- -- 
20: -- -- -- -- -- -- -- -- 28 -- -- -- -- -- -- -- 
30: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 
40: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 
50: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 
60: -- -- -- -- -- -- -- -- 68 -- -- -- -- -- -- -- 
70: -- -- -- -- 74 75 -- 77   
}}}

!! GPIO Pin Usage

Generally, port wires are orange or red, starboard are green (like on a boat).

%%small
|| PIN                        || PIN
| ...                         | ...
| __10__                      | GND
| __9__                       | __25__
| __11__: STATUS LED          | __8__: ENCODER A2
| NA                          | __7__: ENCODER B2
| NA                          | NA
| __5__: STARBOARD INFRARED   | GND
| __6__: CENTER INFRARED      | __12__: PORT INFRARED
| __13__: PORT BUMPER         | GND
| __19__: CENTER BUMPER       | 16
| __26__: STARBOARD BUMPER    | 20
| GND                         | 21
%%
 


GPIO pin 20 is reserved for something, I can't remember. 

{{{
 ► pinout
,--------------------------------.
| oooooooooooooooooooo J8     +====
| 1ooooooooooooooooooo        | USB
|                             +====
|      Pi Model 3B  V1.2         |
|      +----+                 +====
| |D|  |SoC |                 | USB
| |S|  |    |                 +====
| |I|  +----+                    |
|                   |C|     +======
|                   |S|     |   Net
| pwr        |HDMI| |I||A|  +======
`-| |--------|    |----|V|-------'

Revision           : a02082
SoC                : BCM2837
RAM                : 1024Mb
Storage            : MicroSD
USB ports          : 4 (excluding power)
Ethernet ports     : 1
Wi-fi              : True
Bluetooth          : True
Camera ports (CSI) : 1
Display ports (DSI): 1

J8:
   3V3  (1) (2)  5V    
 GPIO2  (3) (4)  5V    
 GPIO3  (5) (6)  GND   
 GPIO4  (7) (8)  GPIO14
   GND  (9) (10) GPIO15
GPIO17 (11) (12) GPIO18
GPIO27 (13) (14) GND   
GPIO22 (15) (16) GPIO23
   3V3 (17) (18) GPIO24
GPIO10 (19) (20) GND   
 GPIO9 (21) (22) GPIO25
GPIO11 (23) (24) GPIO8 
   GND (25) (26) GPIO7 
 GPIO0 (27) (28) GPIO1 
 GPIO5 (29) (30) GND   
 GPIO6 (31) (32) GPIO12
GPIO13 (33) (34) GND   
GPIO19 (35) (36) GPIO16
GPIO26 (37) (38) GPIO20
   GND (39) (40) GPIO21

For further information, please refer to https://pinout.xyz/

}}}
!! Port-Front Board (with BNO05 DoF and [ItsyBitsy M4 Express])

5 pin header:
{{{
5V    SCL    SDA    NA    GND
}}}


----

[{Tag KR01}]