nabla00/Atmega328-boardA basic ATmega328 PCB board.
Atmega328 is an open-source printed circuit board by nabla00, from the nabla00/Atmega328-board repository on GitHub. It is a 4-layer board of 44.9 × 41.4 mm with 35 parts on 54 nets, routed with 59 tracks and 3 vias.
It is built around the ATMEGA328-AU, CH340G and USBLC6-2P6, with the ABM8-20.000MHZ-B2-T and LFXTAL036401 among its other parts. Its parts include 13 capacitors, 7 connectors, 5 resistors, 3 ICs and 2 diodes. It belongs with the AVR (ATmega, ATtiny) boards of this library.
| Qty | Value | Footprint | References |
|---|---|---|---|
| 7 | 100n | Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C1, C2, C7, C10, C11, C12, C13 |
| 2 | 1k | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R4, R5 |
| 2 | 22p | Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C8, C9 |
| 2 | 27p | Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C4, C5 |
| 2 | 5.1k | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R1, R2 |
| 2 | Conn_01x06_Pin | Connector_PinHeader_2.54mm:PinHeader_1x06_P2.54mm_Vertical | J6, J7 |
| 1 | 10k | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R3 |
| 1 | 10u | Inductor_SMD:L_0805_2012Metric_Pad1.05x1.20mm_HandSolder | L1 |
| 1 | 4.7u | Capacitor_THT:CP_Radial_D6.3mm_P2.50mm | C3 |
| 1 | 6.8n | Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C6 |
| 1 | ABM8-20.000MHZ-B2-T | KiCad Libraries:XTAL_ABM8-20.000MHZ-B2-T | Y2 |
| 1 | ATmega328-A | Package_QFP:TQFP-32_7x7mm_P0.8mm | U1 |
| 1 | CH340G | Package_SO:SOIC-16_3.9x9.9mm_P1.27mm | U3 |
| 1 | Conn_01x04_Pin | Connector_PinHeader_2.54mm:PinHeader_1x04_P2.54mm_Vertical | J5 |
| 1 | Conn_01x08_Pin | Connector_PinHeader_2.54mm:PinHeader_1x08_P2.54mm_Vertical | J4 |
| 1 | Conn_02x03_Counter_Clockwise | Connector_PinHeader_2.54mm:PinHeader_2x03_P2.54mm_Vertical | J3 |
| 1 | D_Schottky | Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | D1 |
| 1 | D_Schottky | Diode_SMD:D_0805_2012Metric_Pad1.15x1.40mm_HandSolder | D2 |
| 1 | FerriteBead | KiCad Libraries:WE-CBF_0805_W4.0 | FB1 |
| 1 | LFXTAL036401 | KiCad Libraries:WE-XTAL_LFXTAL036401 | Y1 |
| 1 | SW_Push | Button_Switch_SMD:SW_Push_1P1T_NO_CK_KMR2 | SW1 |
| 1 | Screw_Terminal_01x02 | TerminalBlock:TerminalBlock_Xinya_XY308-2.54-2P_1x02_P2.54mm_Horizontal | J2 |
| 1 | USBLC6-2P6 | Package_TO_SOT_SMD:SOT-666 | U2 |
| 1 | USB_C_Receptacle_USB2.0_16P | Connector_USB:USB_C_Receptacle_Palconn_UTC16-G | J1 |
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solmaz-sahmani/USB_UART_CH340
A custom CH340-based USB-to-UART converter designed in KiCad, focusing on practical PCB design, UART communication, and embedded hardware debugging
It measures 44.9 × 41.4 mm and has 4 copper layers, 0.19 mm thick.
35 parts, built around the ATMEGA328-AU, CH340G, USBLC6-2P6 and ABM8-20.000MHZ-B2-T. 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.
From the nabla00/Atmega328-board repository on GitHub, at the commit this page was made from: the board is Atmega328.kicad_pcb and its schematic Atmega328.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Its repository states no licence, so its author keeps all rights: ask nabla00 before reusing the design.