4 layers95 × 55.5 mm
EinkPDA keyboard
TalismanDesign/PocketMage_PDA
An E-Ink PDA device using the ESP32 S3.
137 parts2kApache-2.0
2 layers50 × 50 mm
It is detecting azimuth on M5Stack + BMM150
- Size
- 50 × 50 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 21
- Nets
- 32
- Pads
- 137
- Tracks, vias
- 96, 42
- Pours
- 3
- Routed
- Yes
- KiCad
- KiCad 5 (file 20171130)
- Created
- 18 Jun 2023
- Updated
- 13 Sep 2026
Overview
Bf-031 is an open-source printed circuit board by takurx, from the takurx/M5Stack_detect_azimuth repository on GitHub, published under the GPL-3.0 licence. It is a 2-layer board of 50 × 50 mm with 21 parts on 32 nets, routed with 96 tracks and 42 vias.
It is built around the PCF8563T/5. Its parts include 3 capacitors, 2 resistors, 2 diodes, 1 IC and 1 connector.
Main components
1README
README.mdM5Stack_detect_azimuth
It is detecting azimuth on M5Stack + BMM150
reference
- 9PEO0xNd/M5Gray_MPU6886_BMM150: This is M5Stack Gray MPU6886+BMM150 examples for arduino IDE
- omegatao/M5StackGrey_MPU6886_BMM150_AHRS_sample: This is a M5Stack grey (MPU6886 + BMM150 version) sample to calculate AHRS status.
Parts
21| Qty | Value | Footprint | References |
|---|---|---|---|
| 4 | MountingHole | bf:BF@MountingHole_2.2mm_M2 | H5, H6, H7, H8 |
| 4 | MountingHole | bf:BF@MountingHole_3.2mm_M3 | H1, H2, H3, H4 |
| 2 | 10k | bf:BF@R_0603_1608Metric | R1, R2 |
| 2 | 1N4148 | bf:BF@D_SOD-123 | D1, D2 |
| 1 | 100n | bf:BF@C_0603_1608Metric | C1 |
| 1 | 15p | bf:BF@C_0603_1608Metric | C2 |
| 1 | 30p | Capacitor_SMD:C_Trimmer_Murata_TZC3 | C3 |
| 1 | 32768Hz | Crystal:Crystal_SMD_MicroCrystal_CC7V-T1A-2Pin_3.2x1.5mm | Y1 |
| 1 | CR1220/1225 | bf:BF@BatteryHolder_Takachi_SMTM1225 | BT1 |
| 1 | LOGO | bf:BF@logo5 | G*** |
| 1 | M-BUS | bf:BF@M5Stack_MBUS | J1 |
| 1 | PCF8563T | Package_SO:SOIC-8_3.9x4.9mm_P1.27mm | U2 |
| 1 | SW_DIP_x04 | bf:BF@SW_DIP_SPSTx04_Slide_XKB_DSHP04TS-S_W7.62mm_P1.27mm | SW1 |
Questions
How big is the Bf-031 PCB?
It measures 50 × 50 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Bf-031 use?
21 parts, built around the PCF8563T/5. 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 Bf-031 KiCad files?
From the takurx/M5Stack_detect_azimuth repository on GitHub, at the commit this page was made from: the board is N14_PCB-MBUS-RTC/PCBV01L01/KiCad/bf-031.kicad_pcb. PCBKit opens the board in the browser, with nothing to install.
Can I use the Bf-031 design in my own project?
Its repository publishes it under the GPL-3.0 licence: you may reuse it on that licence's terms (keep the author's notice, and for a copyleft licence share your changes alike).
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