ATtiny

1  RESET [PB5]
4  GND
5  MOSI  [PB0]
6  MISO  [PB1]
7  SCK   [PB2]
8  VCC   [3,3V|ATtiny13V:1,8V-5,5V|ATtiny13:2,7V-5,5V]

Raspberry Pi 3 A+

PIN     GPIO     FNC
 1       -        3,3V
 2       -        5  V
 9       -        GND
19       12       MOSI
21       13       MISO
23       14       SCLK [SCK]
37       25       RESET

Aufbau

RPi   ATTiny13   Farbe     FNC
1        8       gelb      3,3V
9        4       schwarz   GND
19       5       blau      MOSI
21       6       grün      MISO
23       7       violett   SCK
37       1       orange    RESET