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gca-wio_03-en

WIO-03 Extended Wemos mini32 D1 based Wireless Multi I/O unit


Copyright Rob Versluis and Peter Giling


Description

The Wemos mini32 D1 board offers many I/O pins, so it was a challenge to see
this unit used in the in popularity growing WIO concept.

features

  • 16 I/O ports useable for almost the whole range of GCA extension units
  • control of 4 servo motors
  • Neopixel control
  • serial port
  • I2C
  • small outline : 44 x 66 mm.
  • Switching power module 1 Amp, so supply can be anything betwee 6 and 24 Vdc, without any need for cooling.
  • The mentioned power supply makes current consumption very low.



Connector info

Due to a fault in the original datasheet, the TX and RX connections of UART1 connectore are swapped.
This is mainly no problem, but it differs from serial connectors on other WIOxx boards.

UART1

UART1
pin# function
1 +5V
2 GND
3 RXD
4 TXD


I2C1

I2C1
pin# function
1 SDA
2 SCL
3 GND
4 +5V


NP1

NP1
pin# function
1 +5V
2 GND
3 Data


I/O ports

IO1 ports 1 to 8
pin# function
1 +5V
2 GND
3 port 1
4 port 2
5 port 3
6 port 4
7 port 5
8 port 6
9 port 7
10 port 8


IO2 ports 9 to 16
pin# function
1 +5V
2 GND
3 port 9
4 port 10
5 port 11
6 port 12
7 port 13
8 port 14
9 port 15
10 port 16


Hardware

Corrections

R5 150kOhm
R6 47kOhm
gca-wio_03-en.txt · Last modified: 2022/03/02 17:52 by rjversluis