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taylor

Published September 30, 2022 ©

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Arduino-Based LAN-Controlled Input Scanner / Relay Multiplexer

Arduino-Based LAN-Controlled Input Scanner / Relay Multiplexer

COMPONENTS Hardware components

Arduino - Arduino Ethernet Shield

x 1


PROJECT DESCRIPTION

Original : https://goughlui.com/2021/04/18/project-arduino-based-lan-controlled-input-scanner-relay-multiplexer/

The “stack” is getting quite big, but still fits well. The exposed rear contacts of the PCB may present a bit of a safety issue if touched, but I don’t anticipate use with anything more than about 24V. Instead of Ersin 362, this particular board was assembled using Multicore 0.8mm 60/40 Hydro-X flux solder which seems to be a more effective flux but requires water-based cleaning and has a bit of an irritating smell.

Tests of this board were successful – the relays clicked in and out on command and the connections were made and broken as expected.

I decided to make a second, nicer-looking board. This time, I pre-tinned the pads and mounted SMD components first by hot air, then the through-hole components, choosing a more appropriate voltage rating for the capacitor to have a reasonable height.

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taylor

17 Projects

9 Resellers

0 Contests

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