Dry Contact Inputs Design

I will place a 1x9 header named DRY_CONTACT_INPUTS and wire it via portals as requested.
Click Start on the plan bar to execute. Let me know if you want right-angle instead.
@library find a right-angle 1x9 2.54mm through-hole header footprint option for DRY_CONTACT_INPUTS.
Here’s a right-angle 1x9, 2.54 mm pitch, through-hole header suitable for DRY_CONTACT_INPUTS, plus close alternatives.
Exact match (recommended) | Right-angle 1x9 2.54 mm THT Headers | |---|---|---|---|---| | Pin Header 01x09 2.54mm Horizontal | 068b7f9d-2e3d-c0d2-55f3-ab9503839942 | — | — | Through Hole |
Close alternatives | Alternatives (verify pitch/pin count) | |---|---|---|---|---| | 440053-9 | e2ef8305-a410-47ed-850d-44450428905e | 440053-9 | — | Right-angle, 9-pos, 2.50 mm pitch (not 2.54 mm) | | 61301221021 | aee69d14-645a-46be-a330-c422ddc78b04 | 61301221021 | — | Right-angle, 12-pos, 2.54 mm pitch (can cut/use 9) | | 1821326 | bd9deb7b-8190-4b00-9e0e-31e5790d929a | 1821326 | — | Right-angle, terminal-count varies; 2.54 mm pitch listed |
Recommendation:
D2
ESP_RX
GPIO36
ESP_RX
CC1
ESP_TX
RS485_B
USBDP
RS485_TX
RS485_EN
RS485_TX
USBDN
GPIO15
GPIO14
ESP_TX
GPIO21
USBDP
GPIO34
GPIO34
RS485_B
GPIO25
CC2
GPIO27
ESP_IO0
GPIO25
USBDN
ESP_IO0
GPIO22
GPIO16
RS485_A
GPIO5
ESP_IO0
CC1
USBDP
GPIO13
GPIO17
GPIO12
RS485_EN
GPIO35
GPIO16
GPIO33
GPIO12
RS485_RX
USBDN
ESP_RX
GPIO33
GPIO36
GPIO32
GPIO15
USBDN
ESP_EN
USBDP
GPIO2
RS485_RX
GPIO26
GPIO13
GPIO22
CC2
GPIO2
GPIO39
GPIO26
RS485_A
GPIO39
USBDN
GPIO32
ESP_EN
GPIO14
GPIO21
ESP_TX
ESP_EN
GPIO23
GPIO23
ESP_IO0
GPIO5
GPIO27
ESP_EN
GPIO17
USBDP
GPIO35
GPIO23
D1
C4
Capacitance
10uF
+3V3
GPIO2
GPIO13
C3
Capacitance
10uF
ESP_TX
GND
VBUS
GPIO35
+3V3
R1
Resistance
Resistance
Resistance
10kΩ
+3V3
C11
Capacitance
0.1uF
+3V3
GPIO26
GPIO34
C8
Capacitance
10uF
+5V
R6
Resistance
10 Ω
R2
Resistance
Resistance
Resistance
5.1kΩ
ESP_EN
+3V3
ESP_RX
R5
Resistance
10 Ω
C6
Capacitance
0.1uF
R4
Resistance
1kΩ
GPIO5
GPIO33
GPIO32
R3
Resistance
Resistance
Resistance
5.1kΩ
+5V
GPIO12
GPIO36
+3V3
GPIO25
GPIO0
R7
Resistance
10 Ω
GPIO15
C10
Capacitance
0.1uF
+3V3
C2
Capacitance
0.1uF
C1
Capacitance
0.1uF
VBUS
+5V
C12
Capacitance
0.1uF
GPIO16
GPIO21
+3V3
R8
Resistance
10kΩ
GND
+3V3
+3V3
GPIO14
GPIO17
+5V
R9
Resistance
10kΩ
GPIO27
GPIO39
GPIO22
+3V3
+3V3
PWR
C9
Capacitance
10uF
RST
USB1
Q1
U2
TERM
C5
Capacitance
10uF
IC3
U1
BOOT
IC1
Q2
A RS485 B
D3

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    ESP32 RS485 (Modbus) Controller Module-removebg-preview.png

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    ESP32 RS485 (Modbus) Controller Module bS88

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    This project is a controller module that uses the ESP32-WROOM-32E and the MAX3485 to communicate with Modbus devices. It has a USB-C port for power and data, a voltage regulator for stable operation. It also has a CH340C chip for USB to serial conversion. #referenceDesign #project #ESP32 #ESP32WROOM #RF #WIFI #MCU #reusable #module #simple-embedded #espressif #template #MAX3485 #RS485 #maximintegrated

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