4 layers103.5 × 48.3 mm
ButtonBd2
frc971/electrical
This repo contains the electrical files for the 971 FRC team. The files include PCBs and the electrical system diagrams. The PCBs are created using KiCad.
165 parts3Apache-2.0
4 layers26.7 × 31.8 mm
Mag encoder
frc971/electrical3This repo contains the electrical files for the 971 FRC team. The files include PCBs and the electrical system diagrams. The PCBs are created using KiCad.
- Size
- 26.7 × 31.8 mm
- Copper layers
- 4
- Thickness
- 1.6 mm
- Parts
- 23
- Nets
- 25
- Pads
- 74
- Tracks, vias
- 159, 21
- Pours
- 3
- Routed
- Yes
- KiCad
- KiCad 8.0 (file 20240108)
- Created
- 22 Dec 2023
- Updated
- 6 Nov 2026
Overview
Mag encoder is an open-source printed circuit board by frc971, from the frc971/electrical repository on GitHub, published under the Apache-2.0 licence. It is a 4-layer board of 26.7 × 31.8 mm with 23 parts on 25 nets, routed with 159 tracks and 21 vias.
It is built around the MA732GQ, AP2120N-3.3TRG1 and SN74LVC1G02DBVR. Its parts include 7 resistors, 5 diodes, 3 ICs, 2 capacitors and 2 connectors.
Main components
3
MA732GQ
VQFN-16_L3.0-W3.0-P0.50-BL-EP1.6TQFN-16-EP(3x3) Position Sensors ROHSMonolithic Power SystemsPosition Sensors
AP2120N-3.3TRG1
SOT-23-40℃~+85℃@(Tj) 1 150mA 200mV@(100mA) 25uA 3.3V 30uVrms 65dB@(1kHz) 6V Fixed Over Current Protection Positive SOT-23 Voltage Regulators - Linear, Low Drop Out (LDO) Regulators ROHSDiodes IncorporatedVoltage Regulators - Linear, Low Drop Out (LDO) Regulators
SN74LVC1G02DBVR
SOT-23-5SOT-23-5 Logic Gates ROHSVCCLogic Gates
README
README.mdThis repo contains the electrical files for the 971 FRC team. The files include PCBs and the electrical system diagrams. The PCBs are created using KiCad.
Parts
23| Qty | Value | Footprint | References |
|---|---|---|---|
| 4 | 1.00k-1%-0603 | Resistor_SMD:R_0603_1608Metric | R1, R2, R3, R4 |
| 3 | 100R-1%-0603 | Resistor_SMD:R_0603_1608Metric | R5, R6, R7 |
| 2 | 1uF-10%-25V-0603 | Capacitor_SMD:C_0603_1608Metric | C1, C2 |
| 2 | MountingHole | MountingHole:MountingHole_3.2mm_M3 | H1, H2 |
| 1 | 0015912055 | mag-encoder:Molex-70634-0039 | J1 |
| 1 | AP2120N-3.3TRG1 | Package_TO_SOT_SMD:SOT-23 | U1 |
| 1 | CONFIG | Connector_PinHeader_2.54mm:PinHeader_1x06_P2.54mm_Vertical | J2 |
| 1 | HIGH | LED_SMD:LED_0603_1608Metric | D4 |
| 1 | LOW | LED_SMD:LED_0603_1608Metric | D2 |
| 1 | MA732GQ | mag-encoder:QFN-16-1EP_3x3mm_P0.5mm_EP1.7x1.7mm | U3 |
| 1 | NRVB120VLSFT1G | Diode_SMD:D_SOD-123F | D1 |
| 1 | OK | LED_SMD:LED_0603_1608Metric | D3 |
| 1 | PWR | LED_SMD:LED_0603_1608Metric | D5 |
| 1 | Pin | mag-encoder:pin-0.100 | H3 |
| 1 | SN74LVC1G02DBVR | Package_TO_SOT_SMD:SOT-23-5 | U2 |
| 1 | Slot | mag-encoder:slot-0.100x0.120 | H4 |
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Questions
How big is the Mag encoder PCB?
It measures 26.7 × 31.8 mm and has 4 copper layers, 1.6 mm thick.
What parts does the Mag encoder use?
23 parts, built around the MA732GQ, AP2120N-3.3TRG1 and SN74LVC1G02DBVR. 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 Mag encoder KiCad files?
From the frc971/electrical repository on GitHub, at the commit this page was made from: the board is circuit-boards/shaft-encoders/mag-encoder/mag-encoder/mag-encoder.kicad_pcb. PCBKit opens the board in the browser, with nothing to install.
Can I use the Mag encoder design in my own project?
Its repository publishes it under the Apache-2.0 licence: you may reuse it on that licence's terms (keep the author's notice, and for a copyleft licence share your changes alike).