How many PWM channels can I drive with Beetle?

Hello,

I need to send PWM commands to 3 motors, and each of them takes 2 PWM signals (Left PWM and Right PWM), giving a total of 6 PWM waveforms I need to output.

Can this be done with Beetle? So far I found that D9, D10, D11 and SCL can output PWM waveforms, so I am missing two more.

TX and RX are not responding to analogWrite and digitalWrite, don't know if that's intentional.

A0, A1, A2, and SDA respond only to digitalWrite, accepting HIGH and LOW. If I digitalWrite a value less than 128 they go LOW, otherwise HIGH.

Make some kind of software hack? Is there an Arduino library that can output PWM waveforms on the analog pins, the SDA pin, or the TX and RX pins?

Thank you!