The OnoESC

OnoESC : 32-bit 30A 3S Sensor-less Brush-less Motor Controller

The OnoESC is a 30A 3S sensor-less brush-less motor controller that is Arduino Zero compatible. I was searching for a low-cost opensource quad-copter-style ESC for a while and none turned up, so I decided this could be a good project to start.

I plan to make a 4-in-1 version in as well as a 4S version.

Current specs:

• Atmel ARM M0+ 48MHz microcontroller (ATSAMD21G18A-AU)
• 30 amps continous, >80 amps peak (TPN3R704PL,L1Q) (probably over-kill)
• Proper bridge drivers (LM5109BSD/NOPB) (may switch)
• 2 to 3S (6.6V to 12.6V)
• Current monitoring (with the ACS711KEXLT-31AB-T)
• Various control methods; PWM, I2C, Serial, USB, OneShot
• ~$10 BOM @1000
• 3.3V DC-DC converter
• 20mm x 43mm PCB