2 layers77.9 × 54.6 mm
2 layers69.1 × 77.1 mm
Micro assignment
lzyang2000/PCB-Projects1- Size
- 69.1 × 77.1 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 37
- Nets
- 86
- Pads
- 223
- Tracks, vias
- 567, 95
- Pours
- 2
- Routed
- Yes
- KiCad
- KiCad 5 (file 20171130)
- Created
- 6 Mar 2019
- Updated
- 19 Apr 2019
Overview
Micro assignment is an open-source printed circuit board by lzyang2000, from the lzyang2000/PCB-Projects repository on GitHub. It is a 2-layer board of 69.1 × 77.1 mm with 37 parts on 86 nets, routed with 567 tracks and 95 vias.
It is built around the ICM-20689. Its parts include 18 capacitors, 8 resistors, 4 ICs, 2 connectors and 2 switches.
Main components
1README
USB-Charger/README.mdUSB-Charger
Takes input of 9-18V DC and outputs power compliant with USB Battery Charging 1.2.
BOM
Parts
37| Qty | Value | Footprint | References |
|---|---|---|---|
| 4 | 100n | Capacitor_SMD:C_0805_2012Metric_Pad1.15x1.40mm_HandSolder | C4, C6, C10, C18 |
| 2 | 10p | Capacitor_SMD:C_0402_1005Metric | C2, C3 |
| 2 | 12p | Capacitor_SMD:C_0805_2012Metric_Pad1.15x1.40mm_HandSolder | C7, C8 |
| 2 | 1u | Capacitor_SMD:C_0805_2012Metric_Pad1.15x1.40mm_HandSolder | C1, C5 |
| 2 | 220n | Capacitor_SMD:C_0805_2012Metric_Pad1.15x1.40mm_HandSolder | C15, C16 |
| 2 | 27R | Resistor_SMD:R_0402_1005Metric | R1, R2 |
| 2 | C_Small | Capacitor_SMD:CP_Elec_3x5.3 | C11, C14 |
| 2 | SW_Push | Button_Switch_THT:SW_PUSH_6mm | SW1, SW2 |
| 1 | 0R | Resistor_SMD:R_0805_2012Metric_Pad1.15x1.40mm_HandSolder | R4 |
| 1 | 100R | Resistor_SMD:R_0805_2012Metric_Pad1.15x1.40mm_HandSolder | R10 |
| 1 | 10u | micro:153CLV-0405 | C9 |
| 1 | 1M | Resistor_SMD:R_0805_2012Metric_Pad1.15x1.40mm_HandSolder | R11 |
| 1 | 1k4 | Resistor_SMD:R_0805_2012Metric_Pad1.15x1.40mm_HandSolder | R9 |
| 1 | 1n | Capacitor_SMD:C_0805_2012Metric_Pad1.15x1.40mm_HandSolder | C12 |
| 1 | 300R | Resistor_SMD:R_0805_2012Metric_Pad1.15x1.40mm_HandSolder | R12 |
| 1 | 470n | Capacitor_SMD:C_0805_2012Metric_Pad1.15x1.40mm_HandSolder | C13 |
| 1 | 47k | Resistor_SMD:R_0805_2012Metric_Pad1.15x1.40mm_HandSolder | R5 |
| 1 | 4u7 | micro:C_SMD_WURTH_865080540002 | C17 |
| 1 | AP7312 | micro:SOT26 | U1 |
| 1 | Conn_01x06_Male | Connector_PinHeader_2.54mm:PinHeader_1x06_P2.54mm_Vertical | J1 |
| 1 | F552X---PN80 | Package_QFP:LQFP-80_12x12mm_P0.5mm | U6 |
| 1 | ICM-20689 | Package_DFN_QFN:QFN-24-1EP_4x4mm_P0.5mm_EP2.6x2.6mm | U3 |
| 1 | LED | LED_SMD:LED_0805_2012Metric_Pad1.15x1.40mm_HandSolder | D1 |
| 1 | MS3V-T1R | micro:MS3V-T1R | X1 |
| 1 | MURATA-FILTER_CSTCR | micro:MURATA-CSTCR_G | Q1 |
| 1 | SD-105162 | micro:SD-105162 | U2 |
| 1 | USB_B_Micro | Connector_USB:USB_Micro-B_Molex-105017-0001 | J2 |
Questions
How big is the Micro assignment PCB?
It measures 69.1 × 77.1 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Micro assignment use?
37 parts, built around the ICM-20689. 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 assignment KiCad files?
From the lzyang2000/PCB-Projects repository on GitHub, at the commit this page was made from: the board is MicroController/micro_assignment.kicad_pcb. PCBKit opens the board in the browser, with nothing to install.
Can I use the Micro assignment design in my own project?
Its repository states no licence, so its author keeps all rights: ask lzyang2000 before reusing the design.
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