Xiao Accessory Powerbread

Accessory Overview

Compatible XIAO Boards

All Seeed Studio XIAO form-factor boards (standard XIAO pinout).

Pin Usage Diagram

XIAO Pin    | Accessory Function       | Protocol
------------|--------------------------|----------
All pins    | Passthrough to breadboard | Direct
3V3         | 3.3V power rail          | Power
5V          | 5V power rail            | Power
GND         | Ground rail              | Power

The PowerBread passes through all XIAO pins to breadboard-compatible rows. No pins are consumed by the board itself.

Pin Conflict Warning

Pins OCCUPIED by PowerBread

• None — All pins are passed through, not consumed

Pins remaining FREE

• All XIAO pins (D0–D10, A0, SDA, SCL, TX, RX)

Conflicts with other accessories

• No conflicts — The PowerBread is a passive passthrough board. Other accessories can be wired on the breadboard using the broken-out pins.

Power Requirements

Arduino Setup & Usage

No libraries or special setup required. The PowerBread is a passive power/breakout board.

Basic Usage

// No special code needed for PowerBread
// Simply use XIAO pins as normal — they are passed through to the breadboard

void setup() {
    Serial.begin(115200);
    pinMode(D0, OUTPUT);  // Example: use any pin on the breadboard
}

void loop() {
    digitalWrite(D0, HIGH);
    delay(500);
    digitalWrite(D0, LOW);
    delay(500);
}

TinyGo Setup & Usage

No special drivers or setup required. Use XIAO pins as normal.

package main

import (
    "machine"
    "time"
)

func main() {
    led := machine.D0
    led.Configure(machine.PinConfig{Mode: machine.PinOutput})

    for {
        led.High()
        time.Sleep(500 * time.Millisecond)
        led.Low()
        time.Sleep(500 * time.Millisecond)
    }
}

Communication Protocol Details

No communication protocol — the PowerBread is a passive passthrough board with power regulation.

Common Gotchas / Notes

1. No official wiki — Documentation is limited. Check the product page for updates.
2. Passive board — No firmware, libraries, or drivers needed.
3. Power rails — Ensure your breadboard circuits do not exceed the current capacity of the regulated rails.
4. Orientation — Ensure the XIAO is inserted in the correct orientation on the PowerBread socket.

Reference Links

• Product Page: https://www.seeedstudio.com/XIAO-PowerBread-p-6318.html