2 layers25.4 × 17.8 mm
2 layers30.5 × 17.8 mm
StemmaG0
tannewt/StemmaG0Programmable Stemma QT board with STM32G0 board!
- Size
- 30.5 × 17.8 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 23
- Nets
- 29
- Pads
- 117
- Tracks, vias
- 287, 20
- Pours
- 2
- Routed
- Yes
- KiCad
- KiCad 7 (file 20221018)
- Created
- 11 Nov 2022
- Updated
- 19 May 2023
Overview
StemmaG0 is an open-source printed circuit board by tannewt, from the tannewt/StemmaG0 repository on GitHub. It is a 2-layer board of 30.5 × 17.8 mm with 23 parts on 29 nets, routed with 287 tracks and 20 vias.
It is built around the AP2112K-3.3, SM04B-SRSS-TB and BSS138BKS. Its parts include 5 connectors, 3 capacitors, 3 resistors, 2 ICs and 2 diodes.
Main components
3
AP2112K-3.3
SOT253.3V 600mA CMOS Low Dropout Linear Regulator with EnableDiodes IncorporatedUncategorised
SM04B-SRSS-TB
Header SR 1.0 SMT side entry, 1mm pitchJSTUncategorised
BSS138BKS
SOT-363-50℃~+150℃ 1.5Ω@10V、1.6Ω@4.5V 1V 2 N-Channel 2.2pF 25pF 410mA 417mW 60V 650pC@4.5V 9.7pF N-Channel SOT-363 MOSFETs ROHSElecSuperMOSFETs
Parts
23| Qty | Value | Footprint | References |
|---|---|---|---|
| 2 | 10uF | Adafruit BH1750:0805-NO | C2, C3 |
| 2 | Conn_01x08 | Connector_PinHeader_2.54mm:PinHeader_1x08_P2.54mm_Vertical | J2, J4 |
| 2 | LED_Small | LED_SMD:LED_0603_1608Metric | D1, D2 |
| 2 | MOUNTINGHOLE2.5 | Adafruit BH1750:MOUNTINGHOLE_2.5_PLATED | U$19, U$21 |
| 2 | SM04B-SRSS-TB | Adafruit BH1750:JST_SH4 | CONN3, CONN4 |
| 1 | 0.1uF | Capacitor_SMD:C_0603_1608Metric | C1 |
| 1 | 10K | Resistor_SMD:R_0603_1608Metric | R1 |
| 1 | 10K | Resistor_SMD:R_Array_Convex_4x0603 | R3 |
| 1 | AP2112K-3.3 | Package_TO_SOT_SMD:TSOT-23-5 | U2 |
| 1 | BSS138BKS | Adafruit BH1750:SOT363 | Q2 |
| 1 | Conn_01x10 | Connector_PinHeader_2.54mm:PinHeader_1x10_P2.54mm_Vertical | J5 |
| 1 | Conn_01x12 | Connector_PinHeader_2.54mm:PinHeader_1x12_P2.54mm_Vertical | J1 |
| 1 | Conn_ARM_JTAG_SWD_10 | Connector_PinHeader_1.27mm:PinHeader_2x05_P1.27mm_Vertical_SMD | J3 |
| 1 | LOGO | chickadee:chickadee_1mm_fcu | G*** |
| 1 | R_Small | Resistor_SMD:R_0603_1608Metric | R2 |
| 1 | STMG0x0F | Package_SO:TSSOP-20_4.4x6.5mm_P0.65mm | U1 |
The 21 most common of 23 parts.
Questions
How big is the StemmaG0 PCB?
It measures 30.5 × 17.8 mm and has 2 copper layers, 1.6 mm thick.
What parts does the StemmaG0 use?
23 parts, built around the AP2112K-3.3, SM04B-SRSS-TB and BSS138BKS. 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 StemmaG0 KiCad files?
From the tannewt/StemmaG0 repository on GitHub, at the commit this page was made from: the board is StemmaG0.kicad_pcb and its schematic StemmaG0.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the StemmaG0 design in my own project?
Its repository states no licence, so its author keeps all rights: ask tannewt before reusing the design.
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