

Current sensor
Daughter board to measure current to the motors. Kept separate from the remex for protection.
- Size
- 14.7 × 13.1 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 5
- Nets
- 8
- Pads
- 18
- Tracks, vias
- 21, 19
- Pours
- 3
- Routed
- Yes
- KiCad
- KiCad 6 (file 20211014)
- Created
- 3 Dec 2022
- Updated
- 18 Feb 2023
Overview
Current sensor is an open-source printed circuit board by Montana-Tech-NRMC, from the Montana-Tech-NRMC/current-sensor repository on GitHub. It is a 2-layer board of 14.7 × 13.1 mm with 5 parts on 8 nets, routed with 21 tracks and 19 vias.
Its parts include 1 capacitor, 1 IC and 1 connector. It belongs with the sensors and measurement boards of this library.
README
README.mdCurrent Sensor
Daughter board to measure current to the motors. Kept separate from the remex for protection.

Parts
5| Qty | Value | Footprint | References |
|---|---|---|---|
| 1 | 0.1 uF | Capacitor_SMD:C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C1 |
| 1 | ACS781xLRTR-100B | Sensor_Current:Allegro_PSOF-7_4.8x6.4mm_P1.60mm | U1 |
| 1 | Cf | Capacitor_SMD:C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | Cf |
| 1 | Conn_01x03_Male | Connector_Molex:Molex_PicoBlade_53261-0371_1x03-1MP_P1.25mm_Horizontal | J3 |
| 1 | Rf | Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | Rf |
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Questions
How big is the Current sensor PCB?
It measures 14.7 × 13.1 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Current sensor use?
5 parts. The full list of its parts is on this page, with links to each part's symbol and footprint where PCBKit's library has them.
Where can I download the Current sensor KiCad files?
From the Montana-Tech-NRMC/current-sensor repository on GitHub, at the commit this page was made from: the board is current_sensor.kicad_pcb and its schematic current_sensor.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Current sensor design in my own project?
Its repository states no licence, so its author keeps all rights: ask Montana-Tech-NRMC before reusing the design.