2 layers100 × 46 mm
2 layers40.4 × 22.5 mm
Shim
dotcypress/shim6Tiny ARM Cortex-M0+ Development/Prototyping board
- Size
- 40.4 × 22.5 mm
- Copper layers
- 2
- Thickness
- 1 mm
- Parts
- 26
- Nets
- 34
- Pads
- 125
- Tracks, vias
- 287, 15
- Pours
- 2
- Routed
- Yes
- KiCad
- KiCad 5 (file 20171130)
- Created
- 23 Jul 2019
- Updated
- 29 Jul 2019
Overview
Shim is an open-source printed circuit board by dotcypress, from the dotcypress/shim repository on GitHub, published under the Apache-2.0 licence. It is a 2-layer board of 40.4 × 22.5 mm with 26 parts on 34 nets, routed with 287 tracks and 15 vias.
It is built around the STM32G070KBT6 and LD1117S33TR(MS). Its parts include 9 connectors, 5 capacitors, 5 resistors, 3 diodes and 2 ICs. It belongs with the STM32 boards of this library.
Main components
2
STM32G070KBT6
LQFP-32(7x7)-40℃~+85℃ 128KB 12bit 29 2V~3.6V 32 Bit 36KB 64MHz ARM Cortex-M0+ Built-in+External FLASH LQFP-32(7x7) Microcontrollers (MCU/MPU/SOC) ROHSSTMicroelectronicsMicrocontrollers (MCU/MPU/SOC)
LD1117S33TR(MS)
SOT-223-20℃~+125℃@(Ta) 1 1.4V@(1A) 12V 1A 2mA 3.3V Fixed Over Temperature Protection Positive SOT-223 Voltage Regulators - Linear, Low Drop Out (LDO) Regulators ROHSMSKSEMIVoltage Regulators - Linear, Low Drop Out (LDO) Regulators
README
readme.mdSHIM
Tiny ARM Cortex-M0+ Development/Prototyping board.
Features
- USB VBUS, ext. VIN, ext. 5V, ext +3.3V
- Push-buttons: User and Reset
- LEDs: Power, 2 User LEDs
- Connectors: 2 GPIO, 4 PWM, 1 SWD
- Breadboard friendly
Resources
License
Licensed under either of
- Apache License, Version 2.0 (LICENSE-APACHE or http://www.apache.org/licenses/LICENSE-2.0)
- MIT license (LICENSE-MIT or http://opensource.org/licenses/MIT)
at your option.
Contribution
Unless you explicitly state otherwise, any contribution intentionally submitted for inclusion in the work by you, as defined in the Apache-2.0 license, shall be dual licensed as above, without any additional terms or conditions.
Parts
26| Qty | Value | Footprint | References |
|---|---|---|---|
| 4 | 100nF | Capacitor_SMD:C_0603_1608Metric | C1, C3, C4, C5 |
| 3 | 330R | Resistor_SMD:R_0603_1608Metric | R2, R3, R4 |
| 2 | 10K | Resistor_SMD:R_0603_1608Metric | R1, R5 |
| 1 | 10uF | Capacitor_SMD:C_0603_1608Metric | C2 |
| 1 | BTN1 | shim:SW | SW2 |
| 1 | Button | Connector_PinHeader_1.27mm:PinHeader_2x01_P1.27mm_Vertical | J9 |
| 1 | LD1 | LED_SMD:LED_0603_1608Metric | D2 |
| 1 | LD1117S33TR | Package_TO_SOT_SMD:SOT-223-3_TabPin2 | U1 |
| 1 | LD2 | LED_SMD:LED_0603_1608Metric | D3 |
| 1 | PORT1 | Connector_PinHeader_2.54mm:PinHeader_1x12_P2.54mm_Vertical | J2 |
| 1 | PORT2 | Connector_PinHeader_2.54mm:PinHeader_1x12_P2.54mm_Vertical | J3 |
| 1 | PWM1 | Connector_PinHeader_2.54mm:PinHeader_1x03_P2.54mm_Vertical | J5 |
| 1 | PWM2 | Connector_PinHeader_2.54mm:PinHeader_1x03_P2.54mm_Vertical | J6 |
| 1 | PWM3 | Connector_PinHeader_2.54mm:PinHeader_1x03_P2.54mm_Vertical | J7 |
| 1 | PWM4 | Connector_PinHeader_2.54mm:PinHeader_1x03_P2.54mm_Vertical | J8 |
| 1 | PWR | LED_SMD:LED_0603_1608Metric | D1 |
| 1 | RST | shim:SW | SW1 |
| 1 | STM32G070KBT | Package_QFP:LQFP-32_7x7mm_P0.8mm | U2 |
| 1 | SWD | Connector_PinHeader_2.54mm:PinHeader_1x04_P2.54mm_Vertical | J4 |
| 1 | USB_B_Micro | Connector_USB:USB_Micro-B_Amphenol_10103594-0001LF_Horizontal | J1 |
Questions
How big is the Shim PCB?
It measures 40.4 × 22.5 mm and has 2 copper layers, 1 mm thick.
What parts does the Shim use?
26 parts, built around the STM32G070KBT6 and LD1117S33TR(MS). 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 Shim KiCad files?
From the dotcypress/shim repository on GitHub, at the commit this page was made from: the board is kicad/shim.kicad_pcb. PCBKit opens the board in the browser, with nothing to install.
Can I use the Shim 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).
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