# Test bit

On the front of the part, click on the underlined variable name to change the variable whose value will be tested. This variable must already have been given a value in the flowchart for this part to be able to operate correctly.

The value of this variable in binary form will be subject to a test, the conditions of which you can alter.

To set the test conditions:

1. Choose the number of the bit that will be tested (0 being the least significant bit).
2. Choose the state that the bit must match in order to give a positive test result.

## See also:

- Test bit example
- Using flowcharts parts