Disconnect the function generator and connect a voltage reference to the oscilloscope using a test lead, then set it to output a 5 V DC voltage.

The PicBerry is a student final project by [Advitya], [Jeff], and [Danna] that takes a hybrid approach to creating a portable (and affordable) combination digital oscilloscope and function generator.

The Rigol oscilloscopes have a long history of modifications and hacks, and this latest from [Matthias] is an impressive addition; he’s been working on adding a function generator to the DHO800 ...

Here are the key new features of the VB-8054: four-channel, 500-MHz mixed-signal oscilloscope with 2-GS/s sampling rate and protocol analysis (34 digital channels), and function generator with 40 ...