# Hexapod build - question about solderless relay connection to the servo controller 2040 board

**URL:** <https://forum.core-electronics.com.au/t/hexapod-build-question-about-solderless-relay-connection-to-the-servo-controller-2040-board/19642>\
**Category:** Core Electronics\
**Created:** [12 April 2024 02:28 UTC](https://forum.core-electronics.com.au/t/hexapod-build-question-about-solderless-relay-connection-to-the-servo-controller-2040-board/19642 "2024-04-12T02:28:23Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![magdalena179039](https://avatars.discourse-cdn.com/v4/letter/m/c0e974/32.png) [@magdalena179039](https://forum.core-electronics.com.au/u/magdalena179039)\
**Post date:** [12 April 2024 02:28 UTC](https://forum.core-electronics.com.au/t/hexapod-build-question-about-solderless-relay-connection-to-the-servo-controller-2040-board/19642/1 "2024-04-12T02:28:23Z")

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Hi , I am building hexapod and using beneath wire diagram. As I am new to making it I would like to ask if it is possible to connect relay to the sc2040 board without soldering it [just in case if I change my mind about it …] I am planning to use Gravity: Digital Relay Module (Arduino and Raspberry Pi Compatible).

note: I will be using raspberry pi instead of android phone

![wiring diagram makeyourpet](https://canada1.discourse-cdn.com/flex028/uploads/core_electronics/original/2X/a/abaf827f1674d486fdf1c61f11bf7310a4196043.png)

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**Author:** ![Jeff105671](https://yyz2.discourse-cdn.com/flex028/user_avatar/forum.core-electronics.com.au/jeff105671/32/3729_2.png) [@Jeff105671](https://forum.core-electronics.com.au/u/Jeff105671)\
**Post date:** [12 April 2024 02:51 UTC](https://forum.core-electronics.com.au/t/hexapod-build-question-about-solderless-relay-connection-to-the-servo-controller-2040-board/19642/2 "2024-04-12T02:51:40Z")

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You could solder a strip of header pins to that side of the board and then connect using matching Dupont wires to connect to the relay. That would simplify any future changes.  
[Extra-long break-away 0.1 16-pin strip male header (5 pieces) | Adafruit ADA400 | Core Electronics Australia (core-electronics.com.au)](https://core-electronics.com.au/extra-long-break-away-0-1-16-pin-strip-male-header-5-pieces.html)  
[Jumper Wire 20cm Ribbon (F/F, 40pcs) | Core Electronics Australia (core-electronics.com.au)](https://core-electronics.com.au/solderless-breadboard-jumper-cable-wires-female-female-40-pieces.html)

A different option is to have the gear needed to remove soldered connections. This has the advantage of removing press-fit connections as a potential source of intermittent problems. To do this the following items would be useful:  
[Solder-Wick Desolder Braid 0.8mm-5ft (8015) | Core Electronics Australia (core-electronics.com.au)](https://core-electronics.com.au/solder-wick-desolder-braid-0-8mm-5ft-8015.html)  
[Solder sucker | Adafruit ADA148 | Core Electronics Australia (core-electronics.com.au)](https://core-electronics.com.au/solder-sucker.html)

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**Author:** ![magdalena179039](https://avatars.discourse-cdn.com/v4/letter/m/c0e974/32.png) [@magdalena179039](https://forum.core-electronics.com.au/u/magdalena179039)\
**Post date:** [12 April 2024 04:02 UTC](https://forum.core-electronics.com.au/t/hexapod-build-question-about-solderless-relay-connection-to-the-servo-controller-2040-board/19642/3 "2024-04-12T04:02:10Z")

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thank you, your tips helps 🙂