Function/Waveform Generator || DIY or Buy

JLCPCB $2 for 5 PCBs (Any Color) : https://jlcpcb.com Previous video:    • Is LIDAR easy to use for hobbyists? DIY Ro...   Facebook:   / greatscottlab   Twitter:   / greatscottlab   Support me for more videos: https://www.patreon.com/GreatScott?ty=h Check out Cezar Chirilas article on All About Circuits: https://www.allaboutcircuits.com/proj... You can get the commercial function generators here (affiliate links): Siglent SDG 2082X: http://rover.ebay.com/rover/1/711-532... AE20125: http://rover.ebay.com/rover/1/711-532... XR-2206: http://rover.ebay.com/rover/1/711-532... More project information (schematic, pictures,.....) on Instructables: https://www.instructables.com/id/DIY-... Parts list (incomplete, see Instructables for more, affiliate links): Aliexpress: 1x 12V center tapped transformer: https://s.click.aliexpress.com/e/_dZz... 1x IEC socket: https://s.click.aliexpress.com/e/_dYQ... 1x B40C2300 full bridge rectifier: https://s.click.aliexpress.com/e/_dUS... 1x LM7812 12V regulator: https://s.click.aliexpress.com/e/_d8G... 1x LM7912 -12V regulator: https://s.click.aliexpress.com/e/_d6u... 1x LM7805 5V regulator: https://s.click.aliexpress.com/e/_dWI... 1x Capacitor kit: https://s.click.aliexpress.com/e/_d8N... 1x Arduino Nano: https://s.click.aliexpress.com/e/_d85... 1x Rotary Encoder: https://s.click.aliexpress.com/e/_dXK... 1x AD9833 DDS IC: https://s.click.aliexpress.com/e/_dTc... 1x I2C LCD: https://s.click.aliexpress.com/e/_d6H... 1x TL071 OpAmp: https://s.click.aliexpress.com/e/_dXd... 1x BNC connector: https://s.click.aliexpress.com/e/_dZ5... 1x 10k, 50k Potentiometer: https://s.click.aliexpress.com/e/_dU8... In this episode of DIY or Buy we will have a short look at commercial function/waveform generators in order to determine what features are important for a DIY version. Afterwards I will then show you how to create a simple function generator, the analog and digital way. At the end I will then present you a DIY DDS function generator design which can (kind of) hold up to the commercial versions. Let's get started! Thanks to JLCPCB for sponsoring this video Visit https://jlcpcb.com to get professional PCBs for low prices Music: 2011 Lookalike by Bartlebeats