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Green PCB relay board with three black cubes, 40-pin header and clear acrylic base

LORDWORLD

LORDWORLD 3-Channel Relay Expansion Board for Jetson Nano

SKU CH-VNEC-BF0TA

A 3-channel relay board that plugs directly onto a Jetson Nano via the 40-pin GPIO header, with optocoupler isolation, configurable control pins and stackable design

  • 3 relays switch mains loads up to 5 A at 250 V AC
  • Optocoupler isolation protects the Jetson Nano from high-voltage transients
  • Configurable control pins via jumpers allow flexible GPIO mapping
  • Two boards stack on the same 40-pin header for expanded channels
  • LED indicators show each relay state at a glance

Relay expansion board for Jetson Nano

The LORDWORLD board adds three independently controlled relay channels to a Jetson Nano. It connects through the standard 40-pin GPIO header and can be stacked up to two boards high for additional channels. Optocoupler isolation keeps high-voltage switching noise away from the Nano, while an acrylic bottom panel provides physical separation.

Makers needing isolated switching for AC or DC loads

This board suits hobbyists and prototype builders who want to control mains-voltage or low-voltage devices from a Jetson Nano. It is not for designs that require more than three relays per board without stacking, nor for applications needing solid-state switching speeds or silent operation.

5 A at 250 V AC or 30 V DC per relay

Each relay is rated for a maximum load of 5 A at 250 V AC or 5 A at 30 V DC. Control pins are selectable via jumpers, and on-board LEDs show the operating status of each channel.

Points forts

  • 3 relays switch mains loads up to 5 A at 250 V AC
  • Optocoupler isolation protects the Jetson Nano from high-voltage transients
  • Configurable control pins via jumpers allow flexible GPIO mapping
  • Two boards stack on the same 40-pin header for expanded channels
  • LED indicators show each relay state at a glance

Caractéristiques

BrandLORDWORLD

Questions sur cet article

What does the 40-pin GPIO interface cap in practice for relay control?

The 40-pin GPIO header plugs directly onto the Jetson Nano and supports three relay channels, each rated for 5A at 250V AC or 5A at 30V DC.

What physical space and mounting does this expansion board require?

It sits on the Jetson Nano via the standard 40-pin header and includes an acrylic bottom panel that isolates the Nano from the relay circuitry.

How do you install the board and which step is often missed?

Align the header and press it onto the Nano, then set the jumper pins to assign each relay to its control pin before powering up.

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