2 layers290.1 × 130 mm
2 layers45.6 × 36 mm
- Size
- 45.6 × 36 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 37
- Nets
- 55
- Pads
- 135
- Tracks, vias
- 204, 25
- Pours
- 4
- Routed
- Yes
- KiCad
- KiCad 9.0 (file 20241229)
- Created
- 13 Aug 2025
- Updated
- 13 Aug 2025
Overview
MICRO is an open-source printed circuit board by nameisamit45, from the nameisamit45/STM32-Based-PCB- repository on GitHub. It is a 2-layer board of 45.6 × 36 mm with 37 parts on 55 nets, routed with 204 tracks and 25 vias.
It is built around the AMS1117-3.3. Its parts include 13 capacitors, 5 resistors, 2 ICs, 1 diode and 1 crystal. It belongs with the STM32 boards of this library.
Main components
1Parts
37| Qty | Value | Footprint | References |
|---|---|---|---|
| 5 | 100n | Capacitor_SMD:C_0402_1005Metric | C4, C5, C6, C7, C11 |
| 4 | 1k5 | Resistor_SMD:R_0402_1005Metric | R2, R3, R4, R5 |
| 4 | MountingHole | MountingHole:MountingHole_2.2mm_M2 | H1, H2, H3, H4 |
| 3 | Conn_01x04_Pin | Connector_PinHeader_2.54mm:PinHeader_1x04_P2.54mm_Vertical | I2C, J2, J3 |
| 2 | 10p | Capacitor_SMD:C_0402_1005Metric | C12, C13 |
| 2 | 1u | Capacitor_SMD:C_0402_1005Metric | C9, C10 |
| 2 | 22u | Capacitor_SMD:C_0805_2012Metric | C1, C2 |
| 2 | LOGO | LOGO | G***, G*** |
| 1 | 10k | Resistor_SMD:R_0402_1005Metric | R1 |
| 1 | 10n | Capacitor_SMD:C_0402_1005Metric | C8 |
| 1 | 10u | Capacitor_SMD:C_0603_1608Metric | C3 |
| 1 | 120R | Inductor_SMD:L_0603_1608Metric | FB1 |
| 1 | AMS1117-3.3 | Package_TO_SOT_SMD:SOT-223-3_TabPin2 | U3 |
| 1 | Crystal_GND24 | Crystal:Crystal_SMD_3225-4Pin_3.2x2.5mm | Y1 |
| 1 | LED | LED_SMD:LED_0603_1608Metric | D1 |
| 1 | STM32F103C8Tx | Package_QFP:LQFP-48_7x7mm_P0.5mm | U1 |
| 1 | SW_SPDT | Button_Switch_SMD:SW_SPDT_PCM12 | BOOT |
| 1 | USB3_B_Micro | Connector_Card:microSD_HC_Hirose_DM3D-SF | USB |
The 34 most common of 37 parts.
Similar boards
- 2 layers26.2 × 45.5 mm
PL18 multiprotocol
pascallanger/DIY-Multiprotocol-TX-Module
Multiprotocol TX Module (or MULTI-Module) is a 2.4GHz transmitter module which controls many different receivers and models.
24 parts1.9kGPL-3.0 - 4 layers99 × 53.3 mm
PSLab
fossasia/pslab-hardware
PSLab Hardware Design and Schematics https://pslab.io
199 parts1.7kApache-2.0 - 4 layers85 × 56 mm
- 4 layers100 × 54 mm
32Bit shift register
MaltWhiskey/Mega-Cube
16x16x16 PL9823 Cube with Teensy 4.0 and FlexIO driver
64 parts766 - 2 layers44.2 × 29.3 mm
- 2 layers78 × 60 mm
- 2 layers59.1 × 99.9 mm
Cheap FOCer 2 60mm
shamansystems/Cheap-FOCer-2
Low-Cost Motor Controller based on the VESC 6
193 parts407
Questions
How big is the MICRO PCB?
It measures 45.6 × 36 mm and has 2 copper layers, 1.6 mm thick.
What parts does the MICRO use?
37 parts, built around the AMS1117-3.3. 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 MICRO KiCad files?
From the nameisamit45/STM32-Based-PCB- repository on GitHub, at the commit this page was made from: the board is MICRO.kicad_pcb and its schematic MICRO.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the MICRO design in my own project?
Its repository states no licence, so its author keeps all rights: ask nameisamit45 before reusing the design.