* **
* *
* * * * * * * * *
* * * *
* *
```
dip keys
#1 #2 K41 K4C
1 1 1 1 both keys enabled
1 0 0 1
0 1 1 0
0 0 0 0 both keys disabled
```
* ```
2 4 6
: : :
1 3 5
```
```
1 - B3 MISO, column 13, square pad
2 - VCC
3 - B1 SCLK, column 7
4 - B2 MOSI, caplock led
5 - Reset | momentary jump 5 and 6
6 - Ground | to enter Bootloader
```