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RS-485 ports execution
"'Controller"'
"'Linux port name'"
"'Connector on controller'"
Note
Wiren Board Smart Home 3.5/en
"/dev/ttyNSC0"
Green terminal pair
Jumper terminators in Wiren Board Smart Home 3.5
half-Duplex ports. Transceivers are connected to the chip SC16IS752/en . terminators between lines A and B are installed On the Board, they can be turned off by unsoldering the jumpers (by default they are soldered) - see photos
"/dev/ttyNSC1"
Blue pair of terminals
GPIOs for FETs (open-drain outputs)
terminal block
function
GPIO #
SoM pin
comments
ADC1 terminal block
FET/ADC
52
26 @ CON1
open collector output; ADC channel 0
ADC2 terminal block
FET/ADC
50
25 @ CON1
Open collector output; ADC channel 1
FET/ADC
57
22 @ CON1
Open collector output; ADC channel 2
ADC4 terminal block
FET/ADC
54
21 @ CON1
open collector output; ADC channel 3
GPIO output to terminals
terminal block
function
GPIO
olinuxino output
comments
Terminal strip R1
GPIO, resistive sensor input
16
19 @ CON1
ADC channel 4
Terminal strip R2
GPIO, resistive sensor input
7
18 @ CON1
ADC channel 6, pullup can be activated
Terminal strip R3
GPIO, resistive sensor input
6
17 @ CON1
ADC channel 7, pullup can be activated
Terminal strip R4
GPIO, resistive sensor input
5
16 @ CON1
ADC channel 5, pullup can be activated
Terminal strip W1
GPIO/1-wire
4
15 @ CON1
built-in hardware pullup
Terminal strip W2
GPIO/1-wire
2
13 @ CON1
built-in hardware pullup
Terminal strip W3
GPIO/1-wire
1
12 @ CON1
built-in hardware pullup
GPIOs on terminals
UEXT1
Linux GPIO
UEXT pin
38
9 @ CON1
UEXT SPI CS
10
55
7 @ CON2
UEXT I2C SCL
5
56
8 @ CON2
UEXT I2C SDA
6
UEXT2
GPIOs on relays
GPIOs for internal use
Linux GPIO
34
3 @ CON1
ADC MUX A
33
4 @ CON1
ADC MUX B
32
5 @ CON1
ADC MUX C
39
10@ CON1
3.3V rail shutdown
3
12 @ CON2
sc16is752 chip select
17
20 @ CON1
IRQ sc16is752
36
7@ CON1
RFM69H IRQ
51
27@ CON1
RFM69H chip select
53
14@ CON1
RFM69H DIO2 (raw i/o)
35
6@ CON1
NRF24L01 chip select
37
8@ CON1
NRF24L01 enable
92
24@ CON2
MCP2515 IRQ
91
25@ CON2
MCP2515 chip select
23
26@ CON2
RTC I2C SCL
25
27@ CON2
RTC I2C SDA
245
GPIO3 @ LAN951x
SIM900R power FET
248
GPIO6 @ LAN951x
SIM900R power KEY
249
GPIO7 @ LAN951x
SIM900R power status (input)
See also Managing GPIOs