I just got a batch in from the fab and have gone through and flashed and tested many of them!

Since I was getting enough to have a panel to myself, I customized the solder mask color.  It was a bit of a crapshoot, but I think it turned out really well.  These boards are identical in performance to the r4.2 boards I have in the quad A1 now, just they look nicer and I have more of them.

Top of the line specs:

• 3 phase brushless FOC control
• Integrated absolute magnetic encoder
• Voltage: 12-34V
• Current: 60A peak
• Control: 40kHz PWM and control
• Comms: 5 Mbps CAN-FD
• Daisy chained power and data connectors
• Open source firmware: https://github.com/mjbots/moteus

I've made up some devkits too, which have a random motor attached, and come with a CAN-FD converter, power supply, and STM32 programmer:

All available at shop.mjbots.com for shipping worldwide!