DigitalClock ATMega328
About the DigitalClock ATMega328 PCB
DigitalClock ATMega328 is an open source AVR/Arduino PCB design by bostang, published on GitHub. It is a 4-layer board measuring 68.9 × 50.7 mm, with 70 components from 48 distinct parts.
Its main chip is the ATmega16U2-M, from the AVR/Arduino family. Other key parts include the C2797196, ATmega328P-M, C2939353, LMV358IDGKR and LP2985-3.3. By type, the board carries 24 resistors, 13 capacitors, 7 diodes, 6 ICs, 6 switches and 2 transistors.
From the project
My repository for documenting all PCB Projects I have done
Main components on the DigitalClock ATMega328
DigitalClock ATMega328 bill of materials (BOM)
70 components, 48 distinct parts — part numbers from the project's BOM.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | C2797196 LD1117S50TR_SOT223 | SOT-223-3_TabPin2 | U1 |
| 1 | ATmega16U2-M | QFN-32-1EP_5x5mm_P0.5mm_EP3.3x3.3mm | U2 |
| 1 | ATmega328P-M | QFN-32-1EP_5x5mm_P0.5mm_EP3.3x3.3mm | U3 |
| 1 | C2939353 CA56-12CGKWA | CA56-12CGKWA | U4 |
| 1 | LMV358IDGKR | VSSOP-8_2.3x2mm_P0.5mm | U5 |
| 1 | LP2985-3.3 | SOT-23-5 | U6 |
| 1 | FDN340P | SOT-23 | Q1 |
| 1 | BC847 | SOT-23 | Q2 |
| 1 | FOXSLF/160-20 | Crystal_HC49-4H_Vertical | Y1 |
| 1 | CSTCE16MOV53-R0 | Resonator_SMD_Murata_CSTxExxV-3Pin_3.0x1.1mm | Y2 |
| 1 | CONN_01X40_SOCKET Barrel_Jack_Switch_Pin3Ring | BarrelJack_Horizontal | J1 |
| 1 | USB_C_Plug_USB2.0 | USB_C_Receptacle_GCT_USB4105-xx-A_16P_TopMnt_Horizontal | P1 |
| 1 | C2988620 9V | BatteryHolder_Eagle_12BH611-GR | BT1 |
| 1 | Buzzer | MagneticBuzzer_Kobitone_254-EMB84Q-RO | BZ1 |
| 1 | MF-MSMF050-2 | R_1812_4532Metric | F1 |
| 2 | Jumper_2_Small_Bridged | SolderJumper-2_P1.3mm_Bridged_Pad1.0x1.5mm | JP1, JP2 |
| 2 | CGO603MLCC-05E | R_0603_1608Metric | RV1, RV2 |
| 1 | SW_Push | SW_SPST_B3U-1000P | SW1 |
| 1 | SW_SPDT | SW_Slide_SPDT_Angled_CK_OS102011MA1Q | SW2 |
| 4 | SW_Push | SW_SPST_PTS645 | SW3, SW4, SW5, SW6 |
Show 28 more
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | MRA4007T3G | D_SMA | D1 |
| 1 | GREEN | LED_0805_2012Metric | D2 |
| 2 | 1N4148W 1N4148 | D_SOD-323F | D3, D6 |
| 2 | 1N4148W YELLOW | LED_0805_2012Metric | D4, D5 |
| 1 | SS14 | D_SMA | D7 |
| 1 | BLM21PG221SN1D | R_0603_1608Metric | FB1 |
| 1 | 100N 47u | C_Elec_3x5.4 | C1 |
| 1 | 10U 47u | C_Elec_3x5.4 | C2 |
| 1 | 100N 0.1u | C_1206_3216Metric | C3 |
| 1 | 10U 1u | C_0201_0603Metric | C4 |
| 4 | 100N 0.1u | C_0201_0603Metric | C5, C8, C9, C11 |
| 2 | 10U 22p | C_0201_0603Metric | C6, C7 |
| 1 | 10U 0.1u | C_0805_2012Metric | C10 |
| 1 | 10U 2.2u | C_0402_1005Metric | C12 |
| 1 | 100N 1u | C_0402_1005Metric | C13 |
| 1 | 510 | R_0805_2012Metric | R1 |
| 1 | 120 22 | R_0603_1608Metric | R2 |
| 1 | 470K 22 | R_0603_1608Metric | R3 |
| 1 | 1M | R_0805_2012Metric | R4 |
| 3 | 10K | R_0201_0603Metric | R5, R21, R22 |
| 2 | 330 510 | R_0805_2012Metric | R6, R7 |
| 1 | 470K 1K | R_0201_0603Metric | R8 |
| 1 | 330 1K | R_0201_0603Metric | R9 |
| 1 | 470K 10K | R_0805_2012Metric | R10 |
| 1 | 0 | R_0805_2012Metric | R11 |
| 4 | 220 | R_0805_2012Metric | R12, R13, R14, R15 |
| 6 | 1K | R_0805_2012Metric | R16, R17, R18, R19, R23, R24 |
| 1 | 1M | R_0201_0603Metric | R20 |
DigitalClock ATMega328 design files
The KiCad project lives in the bostang/PCBs repository on GitHub; these links point at the commit this page was built from.
DigitalClock ATMega328: common questions
What microcontroller does the DigitalClock ATMega328 use?
The DigitalClock ATMega328 is built around the ATmega16U2-M, from the AVR/Arduino family.
How big is the DigitalClock ATMega328 PCB?
The DigitalClock ATMega328 measures 68.9 × 50.7 mm, has 4 copper layers and is 1.6 mm thick.
How many components are on the DigitalClock ATMega328?
70 components, from 48 distinct parts, with part numbers taken from the project's own BOM. The full bill of materials is listed on this page.
Where can I download the DigitalClock ATMega328 design files?
From the bostang/PCBs repository on GitHub, which has the KiCad layout, the schematic and the BOM; the links under Design files point to each one.
Can I use the DigitalClock ATMega328 design in my own project?
The repository has no license, so all rights stay with bostang. Use it as a reference, and ask the author before reusing the design.
Can I test firmware for the DigitalClock ATMega328 without the hardware?
Yes. HardLabs builds a simulation of the board from its netlist and BOM, so you can run and debug AVR/Arduino firmware against it before you order a PCB.
More boards in PCBs
ESP32EmbeddedSystemKit
123.3 × 61 mm73 parts4LNo license0
RangkaianOpAmp
161.3 × 97 mm49 parts2LNo license0
ESP32EmbeddedSystem
86.5 × 86.5 mm36 parts2LNo license0
WMS
157.4 × 75.9 mm25 parts2LNo license0
ESP32Smart Irrigation System
67.8 × 164.1 mm22 parts2LNo license0
AVR/ArduinoBlinking LED
55.9 × 69.7 mm18 parts2LNo license0
ESP32RF rec trans v2
64.7 × 133.2 mm15 parts2LNo license0
Raspberry PiRobotEvakuasiGempa
68.8 × 71.6 mm13 parts2LNo license0
Microchip SAMInventrix merch
32 × 37.9 mm8 parts2LNo license0
ESP32Spycam
38.6 × 70.6 mm8 parts2LNo license0
ElectronicBadge
31.9 × 43.9 mm6 parts2LNo license0
Similar boards
AVR/ArduinoMagspoof
samyk
35 × 29 mm11 parts2LNo license4.2k
AVR/ArduinoRedox keyboard
mattdibi
162.2 × 126.5 mm77 parts2LMIT2.0k
AVR/ArduinoLabrador
espotek-org
36.8 × 34.7 mm75 parts2LNo license1.2k
AVR/ArduinoV4
stuartpittaway
30 × 50 mm38 parts2LCC-BY-NC-4.01.1k
AVR/ArduinoModuleV450
30 × 61.4 mm39 parts2LCC-BY-NC-4.01.1k
AVR/ArduinoDiscipline
coseyfannitutti
304.9 × 122.8 mm170 parts2LCC-BY-NC-4.01.0k