In-depth view

Connectors

External connectors

Designator

PartNumber

Mates with

Function

J6

691322110002

691361100002

5V Power input

J9

691322110003

691361100003

RS485 Connector

J5

691322110004

691361100004

IO 1/2 Connector

J18

691322110006

691361100006

IO 3/4/5/6 Connector

J7

691313510012

691351500012

4x Relay Connector

Internal connectors

Designator

PartNumber

Function

J8

61300211121

RS485 120R enable jumper

J1

61300311121

Pull-up / Pull-down selection for IO1

J2

61300311121

Pull-up / Pull-down selection for IO2

J4

61300311121

Gain selection for IO3

J3

61300311121

Gain selection for IO4

J16

61300311121

Gain selection for IO5

J17

61300311121

Gain selection for IO6

J14

61300311121

Voltage reference selection for current measurement

J12

GCT USB4115

USB Type C programming connector

J13

SAMTEC FTSH-105-01-F-DV-P-TR

PCB1 <-> PCB2 Connector

Pinout

Pinout for V0.2 board :

Function

Type

ESP32-S3

ESP32-C6

Relay 1

Output

GPIO37

GPIO20

Relay 2

Output

GPIO38

GPIO21

Relay 3

Output

GPIO39

GPIO22

Relay 4

Output

GPIO40

GPIO23

User LED

Output

GPIO18

GPIO10

User button

Input

GPIO0

GPIO9

RS485 TX

Output

GPIO36

GPIO19

RS485 RX

Input

GPIO35

GPIO18

IO1

GPIO/ADC

GPIO2

GPIO3

IO2

GPIO

GPIO1

GPIO2

IO3

GPIO/ADC

GPIO7*

GPIO0*

IO4

GPIO/ADC

GPIO6

GPIO6

IO5

GPIO/ADC

GPIO5

GPIO5

IO6

GPIO/ADC

GPIO4

GPIO4

*For IO3, you need to solder the right 0R resistor (R1 or R41). See Fitted and not fitted components.

Through J13 connector, some other signals are available :

Function

Type

ESP32-S3

ESP32-C6

Interrupt

Input

GPIO8

GPIO11

I2C SCL

Output

GPIO43

GPIO16

I2C SDA

I / O

GPIO44

GPIO17

Note that user LED and PCB2 interrupt share the same pin.

Fitted and not fitted components

For V0.2 only :

Component

ESP32-S3

ESP32-C6

R1

Fitted

Not fitted

R41

Not fitted

Fitted