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---
layout: default
title: RawValue
parent: Devices
nav_order: 7
---
# [](#header-1)RawValue - Send and receive raw values over KNX
## [](#header-2)Overview
RawValue devices send uint values to the KNX bus. Received values update the devices state. Optionally the current state can be read from the KNX bus.
## [](#header-2)Interface
- `xknx` is the XKNX object.
- `name` is the name of the object.
- `payload_length` is the appended byte size to a CEMI-Frame. `0` for DPT 1, 2 and 3.
- `group_address` is the KNX group address of the raw value device. Used for sending.
- `group_address_state` is the KNX group address of the raw value device.
- `respond_to_read` if `True` GroupValueRead requests to the `group_address` are answered. Defaults to `False`
- `sync_state` defines if and how often the value should be actively read from the bus. If `False` no GroupValueRead telegrams will be sent to its group address. Defaults to `True`
- `always_callback` defines if a callback shall be triggered for consecutive GroupValueWrite telegrams with same payload. Defaults to `False`
- `device_updated_cb` Callback for each update.
## [](#header-2)Example
```python
value = RawValue(
xknx=xknx,
name='Raw',
payload_length=2,
group_address='6/2/1',
respond_to_read=True,
)
xknx.devices.async_add(value)
# Set a value without sending to the bus
value.remote_value.value = 23.0
# Send a new value to the bus
await value.set(24.0)
# Returns the value of in a human readable way
value.resolve_state()
# Returns the last received telegram or None
value.last_telegram
```
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