Wiren Board 5: 1-Wire extension module
This is the approved revision of this page, as well as being the most recent.
Hardware
The module will contain GPIO protection, an active 1-Wire line pullup and a current limiter at 5Vout.
Pinout
The signals are output to the terminals of the expansion module O1-O3.
Pinout:
| Terminal | Function |
|---|---|
| O1 | 5Vout |
| O2 | 1-W |
| O3 | GND |
In the old revision 1.0 (shipped before 1.06.16) Pinout:
| Terminal | Function |
|---|---|
| O1 | 1-W |
| O2 | 5Vout |
| O3 | GND |
Operation
GPIO
When installed in MOD-1
| Input | GPIO |
|---|---|
| 1-W | 85 |
| UP-1-W | 76 |
When installed in MOD-2
| Input | GPIO |
|---|---|
| 1-W | 22 |
| UP-1-W | 23 |