RPM Sensor
About the RPM Sensor PCB
RPM Sensor is an open source PCB design by mark-belbin, published on GitHub under the GPL-3.0 license. It is a 2-layer board measuring 39.4 × 40 mm, with 5 components from 5 distinct parts.
Other key parts include the DRV8305. By type, the board carries 4 capacitors and 1 IC.
It belongs with the robotics & motion and sensors designs in this gallery.
From the project
Custom FOC motor controller designed for underwater robotics.
The final controller is designed for T200 or T100 thrusters from BlueRobotics, boasting sensorless FOC and a miniature form-factor that is built right into the thruster.
For most hobby BLDC controllers, commonly referred to as electronic speed controllers (ESCs), motor commutation is accomplished through sensorless trapezoidal 6-step control. This commutation method steps through 6 distinct stator magnetic field positions in order to keep the motor spinning, based only on the feedback of the back-EMF voltage of the three motor phases. With only 6 available control positions, this method of…
Main components on the RPM Sensor
RPM Sensor bill of materials (BOM)
5 components, 5 distinct parts — part numbers from the project's BOM.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | DRV8305 MAG_ENCODER_AEAT-8800-Q24 | QFN-24-1EP_5x5mm_Pitch0.65mm | U1 |
| 1 | 4.7UF 100uF | CP_Tantalum_Case-U_EIA-6032-15_Reflow | C1 |
| 1 | 0.047UF 100uF | CP_Tantalum_Case-U_EIA-6032-15_Reflow | C2 |
| 1 | 1UF 0.1uF | C_0805 | C3 |
| 1 | 0.047UF 10uF | C_0805 | C4 |
RPM Sensor design files
The KiCad project lives in the mark-belbin/motor-controller repository on GitHub; these links point at the commit this page was built from.
RPM Sensor: common questions
How big is the RPM Sensor PCB?
The RPM Sensor measures 39.4 × 40 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the RPM Sensor?
5 components, from 5 distinct parts, with part numbers taken from the project's own BOM. The full bill of materials is listed on this page.
Where can I download the RPM Sensor design files?
From the mark-belbin/motor-controller repository on GitHub, which has the KiCad layout and the BOM; the links under Design files point to each one.
Can I use the RPM Sensor design in my own project?
Yes, under the terms of its GPL-3.0 license, which mark-belbin chose for the repository.
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