

Blake's embedded projects
- Size
- 91.4 × 91.4 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 64
- Nets
- 106
- Pads
- 294
- Tracks, vias
- 854, 86
- Pours
- 1
- Routed
- Yes
- KiCad
- KiCad 5 (file 20170922)
- Created
- 16 Feb 2019
- Updated
- 13 Jun 2023
Overview
Nome is an open-source printed circuit board by blakesmith, from the blakesmith/embedded repository on GitHub. It is a 2-layer board of 91.4 × 91.4 mm with 64 parts on 106 nets, routed with 854 tracks and 86 vias.
It is built around the CS43L22, LM1117-1.8 and LM1117-3.3, with the LTC-4727JS and MCP73831 among its other parts. Its parts include 28 capacitors, 10 resistors, 8 ICs, 6 diodes and 4 connectors.
Main components
5CS43L22
QFN-40-EP(6x6)Automatic mute/no-noise switch、Enable/disable function、Filterless architecture、Digital programmable gain、Built-in audio processing QFN-40-EP(6x6) Audio Amplifiers ROHSSTMicroelectronicsAudio AmplifiersLM1117-1.8
SOT-2231 1.3V@(1000mA) 1.8V 15V 1A 2mA Fixed Over Current Protection、Short Circuit Protection、Thermal shutdown Positive SOT-223 Voltage Regulators - Linear, Low Drop Out (LDO) Regulators ROHShongjiachengUncategorisedLM1117-3.3
SOT-2231 1.3V@(1000mA) 15V 1A 2mA 3.3V Fixed Over Current Protection、Short Circuit Protection、Thermal shutdown Positive SOT-223 Voltage Regulators - Linear, Low Drop Out (LDO) Regulators ROHShongjiachengUncategorisedLTC-4727JS
DIP-140.39 12.8mmx40.18mmx7mm 4 40mW 7 Segment Common Cathode Yellow DIP-14 LED Segment Displays ROHSLite-OnLED Segment DisplaysMCP73831
UncategorisedMicrochip Technology
Parts
64| Qty | Value | Footprint | References |
|---|---|---|---|
| 11 | 0.1uF | Capacitors_SMD:C_0805_HandSoldering | C1, C2, C4, C6, C7, C11, C12, C16, C17, C19, C21 |
| 6 | 1uF | Capacitors_SMD:C_0805_HandSoldering | C3, C13, C14, C15, C22, C23 |
| 5 | 4.7uF | Capacitors_SMD:C_0805_HandSoldering | C5, C26, C27, C28, C29 |
| 4 | Mount | Connectors:1pin | , , , |
| 3 | 40 | Resistors_SMD:R_0805_HandSoldering | R3, R4, R5 |
| 2 | 0.022uF | Capacitors_SMD:C_0805_HandSoldering | C9, C10 |
| 2 | 10uF | Capacitors_SMD:C_0805_HandSoldering | C8, C24 |
| 2 | 150pF | Capacitors_SMD:C_0805_HandSoldering | C18, C20 |
| 2 | 470 | Resistors_SMD:R_0805_HandSoldering | R8, R9 |
| 2 | 51.1 | Resistors_SMD:R_0805_HandSoldering | R6, R7 |
| 2 | LED Green | LEDs:LED_0805_HandSoldering | D2, D6 |
| 2 | LED Red | LEDs:LED_0805_HandSoldering | D3, D5 |
| 1 | 10k | Resistors_SMD:R_0805_HandSoldering | R1 |
| 1 | 25 | Resistors_SMD:R_0805_HandSoldering | R2 |
| 1 | 4.7k | Resistors_SMD:R_0805_HandSoldering | R10 |
| 1 | 7SEG_DEBUG | Pin_Headers:Pin_Header_Straight_1x04_Pitch2.54mm | J4 |
| 1 | AS1115 | Housings_SSOP:QSOP-24_3.9x8.7mm_Pitch0.635mm | U3 |
| 1 | CS43L22 | Housings_DFN_QFN:QFN-40-1EP_6x6mm_Pitch0.5mm | U6 |
| 1 | JST | third_party:JST_PH_B2B-PH-SM4-TB_02x2.00mm_Straight | J3 |
| 1 | JTAG_SWD | Pin_Headers:Pin_Header_Straight_2x05_Pitch2.54mm | J2 |
| 1 | LED Blue | LEDs:LED_0805_HandSoldering | D1 |
| 1 | LED Orange | LEDs:LED_0805_HandSoldering | D4 |
| 1 | LM1117-1.8 | TO_SOT_Packages_SMD:SOT-223 | U1 |
| 1 | LM1117-3.3 | TO_SOT_Packages_SMD:SOT-223 | U2 |
| 1 | LOGO | nome:metronome_logo | G*** |
| 1 | LTC-4727JS | nome:LTC-4727 | U5 |
| 1 | MCP73831 | TO_SOT_Packages_SMD:SOT-23-5_HandSoldering | U8 |
| 1 | MICRO-B_USB | open-project:MICRO-B_USB | U7 |
| 1 | Rotary_Encoder_Switch | nome:PEC11 | SW2 |
| 1 | SJ-2524 | nome:SJ-2524 | J1 |
| 1 | STMF411CEU6 | Housings_QFP:LQFP-48_7x7mm_Pitch0.5mm | U4 |
| 1 | SW_SPDT | nome:CK_SPDT | SW1 |
| 1 | Speaker | nome:WirePad-1x2-2.54mm | LS1 |
Questions
How big is the Nome PCB?
It measures 91.4 × 91.4 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Nome use?
64 parts, built around the CS43L22, LM1117-1.8, LM1117-3.3 and LTC-4727JS. 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 Nome KiCad files?
From the blakesmith/embedded repository on GitHub, at the commit this page was made from: the board is nome/hardware/nome/nome.kicad_pcb. PCBKit opens the board in the browser, with nothing to install.
Can I use the Nome design in my own project?
Its repository states no licence, so its author keeps all rights: ask blakesmith before reusing the design.
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