# Arduino ATMEGA328P-MU Template ## Description Arduino Template based on ATMEGA328P-MU. This MCU is used in Arduino UNO Rev. 3, Arduino Nano V3.0, and some other. This template is a good starting point for your Arduino based project. #template #project #arduino #ATMEGA328P #project-template ## Project Details - **Owner:** soudruhromancz - **Created:** 2/18/2025 - **Last Updated:** 2/19/2025 - **Visibility:** Public - **License:** https://creativecommons.org/licenses/by/4.0/ ## Key Components ### J1 — [USB-C 2.0 Receptacle](https://www.flux.ai/corynrobinson/usb-c-20-receptacle~cf.md) - Datasheet URL: https://gct.co/files/drawings/usb4105.pdf - Manufacturer Name: GTC - Manufacturer Part Number: USB4105-GF-A - Purchase Url: https://www.digikey.com/en/products/detail/gct/USB4105-GF-A/11198441 - Part Type: USB C **Pins:** - CC1 [pin 6] - CC2 [pin 12] - D- [pin 9] - D- [pin 7] - D+ [pin 10] - D+ [pin 8] - GND [pin 15] - GND [pin 1] - GND [pin 16] - GND [pin 2] - SBU1 [pin 11] - SBU2 [pin 5] - VBUS [pin 14] - VBUS [pin 13] - VBUS [pin 4] - VBUS [pin 3] ### J2 — [AVR-ISP-6 with text](https://www.flux.ai/vasy_skral/avr-isp-6-with-text~i0o.md) - Exclude from BOM: false - Manufacturer Name: Würth Elektronik - Part Type: Connector - Manufacturer Part Number: 61200621621 - Datasheet URL: https://www.we-online.com/catalog/datasheet/61200621621.pdf **Pins:** - Pin_1 [pin 1] - Pin_2 [pin 2] - Pin_3 [pin 3] - Pin_4 [pin 4] - Pin_5 [pin 5] - Pin_6 [pin 6] ### J3 — [2-Position Screw Terminal](https://www.flux.ai/corynrobinson/2-position-screw-terminal~s4.md) - Datasheet URL: https://www.we-online.com/katalog/datasheet/691137710002.pdf - Manufacturer Part Number: 691137710002 - Manufacturer Name: Würth Elektrik - Part Type: Connector **Pins:** - P1 [pin 1] - P2 [pin 2] ### RESET — [PTS815](https://www.flux.ai/vasy_skral/pts815~6b.md) - Part Type: Switch - Manufacturer Name: C&K - Datasheet URL: https://www.ckswitches.com/media/2728/pts815.pdf - Manufacturer Part Number: PTS815 SJM 250 SMTR LFS **Pins:** - ~1 [pin 1] - ~2 [pin 2] - ~3 [pin 3] - ~4 [pin 4] ### U1 — [CH340C](https://www.flux.ai/vasy_skral/ch340c~xfo.md) - Manufacturer Name: Wah - Manufacturer Part Number: CH340C - Datasheet URL: https://datasheet.lcsc.com/szlcsc/Jiangsu-Qin-Heng-CH340C_C84681.pdf - Part Type: Integrated Circuit **Pins:** - ~CTS [pin 9] - ~DCD [pin 12] - ~DSR [pin 10] - ~DTR [pin 13] - ~RI [pin 11] - ~RTS [pin 14] - GND [pin 1] - NC [pin 7] - NC [pin 8] - R232 [pin 15] - RXD [pin 3] - TXD [pin 2] - UD- [pin 6] - UD+ [pin 5] - V3 [pin 4] - VCC [pin 16] ### U2 — [ATMEGA328PB-AU](https://www.flux.ai/adrian95/atmega328pb-au~88i.md) - Part Type: Microcontroller - Datasheet URL: https://ww1.microchip.com/downloads/en/DeviceDoc/40001907A.pdf - License: https://creativecommons.org/licenses/by/4.0/ - Manufacturer Name: Microchip - Manufacturer Part Number: ATMEGA328PB-AU **Pins:** - ~RESET~/PC6 [pin 29] - AREF [pin 20] - AVCC [pin 18] - GND [pin 21] - GND [pin 5] - PB0 [pin 12] - PB1 [pin 13] - PB2 [pin 14] - PB3 [pin 15] - PB4 [pin 16] - PB5 [pin 17] - PC0 [pin 23] - PC1 [pin 24] - PC2 [pin 25] - PC3 [pin 26] - PC4 [pin 27] - PC5 [pin 28] - PD0 [pin 30] - PD1 [pin 31] - PD2 [pin 32] - PD3 [pin 1] - PD4 [pin 2] - PD5 [pin 9] - PD6 [pin 10] - PD7 [pin 11] - PE0 [pin 3] - PE1 [pin 6] - PE2 [pin 19] - PE3 [pin 22] - VCC [pin 4] - XTAL1/PB6 [pin 7] - XTAL2/PB7 [pin 8] ### U3 — [CC56-12SURKWA](https://www.flux.ai/kicad-part-library/cc56-12surkwa~wx.md) - Manufacturer Part Number: CC56-12SURKWA - Package or Case Code: CA56-12SURKWA - Datasheet URL: http://www.kingbright.com/attachments/file/psearch/000/00/00/CC56-12SURKWA(Ver.7A).pdf - Part Type: Display 7Segment **Pins:** - a [pin 11] - b [pin 7] - c [pin 4] - CC1 [pin 12] - CC2 [pin 9] - CC3 [pin 8] - CC4 [pin 6] - d [pin 2] - DPX [pin 3] - e [pin 1] - f [pin 10] - g [pin 5] ### U4 — [CC56-12SURKWA](https://www.flux.ai/kicad-part-library/cc56-12surkwa~wx.md) - Manufacturer Part Number: CC56-12SURKWA - Package or Case Code: CA56-12SURKWA - Datasheet URL: http://www.kingbright.com/attachments/file/psearch/000/00/00/CC56-12SURKWA(Ver.7A).pdf - Part Type: Display 7Segment **Pins:** - a [pin 11] - b [pin 7] - c [pin 4] - CC1 [pin 12] - CC2 [pin 9] - CC3 [pin 8] - CC4 [pin 6] - d [pin 2] - DPX [pin 3] - e [pin 1] - f [pin 10] - g [pin 5] ### U5 — [MAX7219CNG+](https://www.flux.ai/adrian95/max7219cngplus~zxw.md) - Manufacturer Part Number: MAX7219CNG+ - Datasheet URL: https://datasheet.octopart.com/MAX7219CNG%2B-Maxim-Integrated-datasheet-32866360.pdf - Part Type: Integrated Circuit - License: https://creativecommons.org/licenses/by/4.0/ - Manufacturer Name: Maxim Integrated **Pins:** - CLK [pin 13] - DIG_0 [pin 2] - DIG_1 [pin 11] - DIG_2 [pin 6] - DIG_3 [pin 7] - DIG_4 [pin 3] - DIG_5 [pin 10] - DIG_6 [pin 5] - DIG_7 [pin 8] - DIN [pin 1] - DOUT [pin 24] - GND [pin 4] - GND [pin 9] - ISET [pin 18] - LOAD [pin 12] - SEG_A [pin 14] - SEG_B [pin 16] - SEG_C [pin 20] - SEG_D [pin 23] - SEG_DP [pin 22] - SEG_E [pin 21] - SEG_F [pin 15] - SEG_G [pin 17] - V+ [pin 19] ### U6 — [MAX7219CNG+](https://www.flux.ai/adrian95/max7219cngplus~zxw.md) - Datasheet URL: https://datasheet.octopart.com/MAX7219CNG%2B-Maxim-Integrated-datasheet-32866360.pdf - Manufacturer Part Number: MAX7219CNG+ - Manufacturer Name: Maxim Integrated - Part Type: Integrated Circuit - License: https://creativecommons.org/licenses/by/4.0/ **Pins:** - CLK [pin 13] - DIG_0 [pin 2] - DIG_1 [pin 11] - DIG_2 [pin 6] - DIG_3 [pin 7] - DIG_4 [pin 3] - DIG_5 [pin 10] - DIG_6 [pin 5] - DIG_7 [pin 8] - DIN [pin 1] - DOUT [pin 24] - GND [pin 4] - GND [pin 9] - ISET [pin 18] - LOAD [pin 12] - SEG_A [pin 14] - SEG_B [pin 16] - SEG_C [pin 20] - SEG_D [pin 23] - SEG_DP [pin 22] - SEG_E [pin 21] - SEG_F [pin 15] - SEG_G [pin 17] - V+ [pin 19] ### U7 — [CC56-12SURKWA](https://www.flux.ai/kicad-part-library/cc56-12surkwa~wx.md) - Manufacturer Part Number: CC56-12SURKWA - Package or Case Code: CA56-12SURKWA - Datasheet URL: http://www.kingbright.com/attachments/file/psearch/000/00/00/CC56-12SURKWA(Ver.7A).pdf - Part Type: Display 7Segment **Pins:** - a [pin 11] - b [pin 7] - c [pin 4] - CC1 [pin 12] - CC2 [pin 9] - CC3 [pin 8] - CC4 [pin 6] - d [pin 2] - DPX [pin 3] - e [pin 1] - f [pin 10] - g [pin 5] ### U8 — [CC56-12SURKWA](https://www.flux.ai/kicad-part-library/cc56-12surkwa~wx.md) - Manufacturer Part Number: CC56-12SURKWA - Package or Case Code: CA56-12SURKWA - Part Type: Display 7Segment - Datasheet URL: http://www.kingbright.com/attachments/file/psearch/000/00/00/CC56-12SURKWA(Ver.7A).pdf **Pins:** - a [pin 11] - b [pin 7] - c [pin 4] - CC1 [pin 12] - CC2 [pin 9] - CC3 [pin 8] - CC4 [pin 6] - d [pin 2] - DPX [pin 3] - e [pin 1] - f [pin 10] - g [pin 5] ### X1 — [Crystal-oscillator-4P-ABM3C](https://www.flux.ai/vasy_skral/crystal-oscillator-4p-abm3c~c64.md) - Manufacturer Part Number: ABM3C-16.000MHZ-D4Y-T - Manufacturer Name: Abracon LLC - Frequency: 16MHz - License: https://creativecommons.org/licenses/by/4.0/ - Part Type: Oscillator **Pins:** - GND [pin 2] - GND [pin 4] - IN/OUT [pin 1] - OUT/IN [pin 3] *The full schematic, PCB layout, bill of materials, and interactive design are available at [https://www.flux.ai/soudruhromancz/arduino-atmega328p-mu-template~lf](https://www.flux.ai/soudruhromancz/arduino-atmega328p-mu-template~lf).* --- *Generated from [https://www.flux.ai/soudruhromancz/arduino-atmega328p-mu-template~lf](https://www.flux.ai/soudruhromancz/arduino-atmega328p-mu-template~lf)*