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Zero header side

The WIOpi-01 PCB expects the Zero header at the bottom side:
Buy a Zero type W, and not type WH. The header of type WH is on top.

If a Zero with the header on top is already available, the Zero connector on the WIOpi-01 can also be mounted at the bottom side of the PCB.

Mobile Drive

Important wiopi.ini settings:

  • mobiletype → 1 for H-Bridge
  • batterytype

See: wrapper


The WS2801 LED strips connection:

Pixel I/O1 BCM Remark
GND 2 (GND) -
DI 6 (spi0) MOSI
CI 8 (spi2) SCLK
V+ 1 (VDD) - Only to feed a few WS2801.


Stepper I/O2 BCM Remark
GND 2 (GND) -
IN1 3 (st1-0) 0
IN2 4 (st1-1) 5
IN3 5 (st1-2) 6
IN4 6 (st1-3) 19
CAL 8 (st1-5) 26
V+ 1 (VDD) - Only to feed a small 5V stepper.


wio/wiopi-01-en.txt · Last modified: 2021/11/11 15:13 by rjversluis