PWM (Pulse Width Modulation) as Fast As Possible

PWM is a technology that enables cool things like RGB lighting and variable-speed fans. How does it work? TunnelBear message: TunnelBear is the easy-to-use VPN app for mobile and desktop. Visit http://tunnelbear.com/linus to try it free and save 10% when you sign up for unlimited TunnelBear data. Follow: http://twitter.com/linustech Join the community: http://linustechtips.com source