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
GPIO23
D1
C4
Capacitance
10uF
GPIO2
GPIO13
C3
Capacitance
10uF
ESP_TX
GND
GPIO35
+3V3
C11
Capacitance
0.1uF
GPIO26
GPIO34
C8
Capacitance
10uF
ESP_EN
ESP_RX
C6
Capacitance
0.1uF
GPIO5
GPIO33
GPIO32
GPIO12
GPIO36
GPIO25
GPIO0
GPIO15
C10
Capacitance
0.1uF
C2
Capacitance
0.1uF
C1
Capacitance
0.1uF
C12
Capacitance
0.1uF
GPIO16
GPIO21
GND
GPIO14
GPIO17
+5V
GPIO27
GPIO39
GPIO22
R1
Resistance
Resistance
Resistance
10kΩ
R6
Resistance
10 Ω
R2
Resistance
Resistance
Resistance
5.1kΩ
C9
Capacitance
10uF
RST
R5
Resistance
10 Ω
USB1
R4
Resistance
1kΩ
R3
Resistance
Resistance
Resistance
5.1kΩ
R7
Resistance
10 Ω
C5
Capacitance
10uF
R8
Resistance
10kΩ
BOOT
R9
Resistance
10kΩ
PWR
U2
TERM
Q1
IC3
U1
IC1
Q2
A RS485 B
D3

ESP32 RS485 (Modbus) Controller Module bS88