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# peripheralIsReady(toSendWriteWithoutResponse:)

Tells the delegate that a peripheral is again ready to send characteristic updates.

```
optional func peripheralIsReady(toSendWriteWithoutResponse peripheral: CBPeripheral)
```

## Parameters

`peripheral`

The peripheral providing this update.

## Discussion

The peripheral calls this delegate method after a failed call to [`writeValue(_:for:type:)`](/documentation/CoreBluetooth/CBPeripheral/writeValue(_:for:type:)), once `peripheral` is ready to send characteristic value updates.

---

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