v3.2 ODrives sold out very quickly. I was not planning on manufacturing a new batch until the firmware alpha is over. However, demand for alpha stage hardware has been so high, I decided to do another batch while still in alpha.

The new boards are expected to arrive in mid July. If you want to be notified as soon as they are available, you can sign up here.

I took the opportunity to sneak in a couple of minor hardware changes. Below are the changes made, straight from the CHANGELOG:

• Added
  • Power LED
  • Pads on DC rail, for secondary power connection, on the opposite side of main power connector
• Changed
  • GPIO Pinout. See spreadsheet.
  • Fliped LDO and C29 to bot side, for better clearance on top side for enclosure style heatsinking.
  • Changed all screw terminals to 7.62mm pitch
  • Encoder pullup resistance 1k -> 3.3k, to be compatible with 2mA push-pull encoders without desoldering pullups.
• Removed
  • AUX_V voltage measurement no longer available

The most significant change is the GPIO Pinout change. This brings about the following possibilities over v3.2:

• All GPIO pins are now 5V tolerant (on v3.2 and earlier, GPIO 2 and 3 are 3.3V max).
• Timer peripheral in capture mode on 4 GPIO pins allow:
  • Higher step rates on the step/direction interface.
  • up to 4 channels of PWM input.
• Two UART interfaces (we had a single RX pin before).
• We get a 5th GPIO pin. This could be used for anything, but specifically it could be used as an Enable line, which was very highly requested for a "step/dir/step/dir/en" setup.
• We get 4 Analog capable GPIO pins. This enables the possibility of 2 channels worth of sin/cos encoders.