NotePad
About the NotePad PCB
NotePad is an open source AVR/Arduino PCB design by Meteopresscz, published on GitHub. It is a 2-layer board measuring 151 × 212 mm, with 155 components from 41 distinct parts.
Its main chip is the ATmega168A-AU, from the AVR/Arduino family. Other key parts include the LP38798, DS18B20 and LM7806_TO220. By type, the board carries 67 resistors, 23 diodes, 20 capacitors, 13 test points, 9 connectors and 5 transistors.
From the project
Design of our Business Cards and Note Pads on PCB
Main components on the NotePad
NotePad bill of materials (BOM)
155 components, 41 distinct parts.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | LP38798 | DFN-12-1EP_4x4mm_Pitch0.5mm | IC1 |
| 1 | ATmega168A-AU | TQFP-32_7x7mm_P0.8mm | U1 |
| 1 | DS18B20 | TO-92_Inline | U2 |
| 1 | LM7806_TO220 | TO-220-3_Vertical | U3 |
| 3 | Q_NPN_CBE | TO-92L_Inline_Wide | Q1, Q3, Q5 |
| 2 | DMG2307L | SOT-23 | Q2, Q4 |
| 1 | Crystal_Small | Crystal_SMD_SeikoEpson_MC405-2Pin_9.6x4.1mm_HandSoldering | Y1 |
| 1 | AVR-ISP-6 | PinHeader_2x03_P2.54mm_Vertical | J3 |
| 1 | LOGIC | PinHeader_2x05_P2.54mm_Vertical | J5 |
| 2 | A | TerminalBlock_WAGO_236-406_1x06_P5.00mm_45Degree | J6, J7 |
| 1 | SDR | PinHeader_1x03_P2.54mm_Vertical | J8 |
| 2 | Barrel_Jack_Switch | BarrelJack_Horizontal | J9, J10 |
| 1 | 5Vfilt | TerminalBlock_WAGO_236-406_1x06_P5.00mm_45Degree | J11 |
| 1 | USB_C_Receptacle | PCB-USB-C_straight | J12 |
| 1 | SolderJumper_2_Open | SolderJumper-2_P1.3mm_Open_RoundedPad1.0x1.5mm | JP1 |
| 1 | RJ1 | RJ45_Wuerth_7499010001A_Horizontal | RJ1 |
| 1 | RJ2 | RJ45_Wuerth_7499010001A_Horizontal | RJ2 |
| 1 | DEBUG1 | RJ45_Wuerth_7499010001A_Horizontal | RJ3 |
| 1 | ROT | RJ45_Wuerth_7499010001A_Horizontal | RJ4 |
| 1 | SCOPE_INT | RJ45_Wuerth_7499010001A_Horizontal | RJ5 |
Show 21 more
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | LNA | RJ45_Wuerth_7499010001A_Horizontal | RJ6 |
| 1 | STC_INT | RJ45_Wuerth_7499010001A_Horizontal | RJ7 |
| 1 | LED_INT | RJ45_Wuerth_7499010001A_Horizontal | RJ8 |
| 6 | TestPoint | TestPoint_Bridge_Pitch2.54mm_Drill1.0mm | TP8, TP9, TP10, TP11, TP12, TP13 |
| 1 | 5Vf | TestPoint_Bridge_Pitch2.54mm_Drill1.0mm | TP15 |
| 1 | RXprot1 | TestPoint_Bridge_Pitch2.54mm_Drill1.0mm | TP16 |
| 1 | Frame sync | TestPoint_Bridge_Pitch2.54mm_Drill1.0mm | TP17 |
| 4 | 5Vn | TestPoint_Bridge_Pitch2.54mm_Drill1.0mm | TP22, TP23, TP29, TP30 |
| 1 | Arduino_Mega2560_Shield | Arduino_Mega2560_roundedge | XA1 |
| 2 | LED_Small | LED_0603_1608Metric_Castellated | D1, D2 |
| 21 | LED | D_0802_side_woSilk | D3, D4, D5, D6, D7, D8, D9, D10 +13 |
| 3 | L_Small | L_0805_2012Metric_Pad1.15x1.40mm_HandSolder | L1, L2, L3 |
| 2 | 22p | C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C1, C2 |
| 10 | 100n | C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C3, C4, C8, C9, C12, C14, C17, C18 +2 |
| 6 | 10u | C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C5, C7, C10, C13, C15, C16 |
| 1 | 1000u | CP_Radial_D10.0mm_P5.00mm | C6 |
| 1 | 10n | C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C11 |
| 40 | R | R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R1, R2, R3, R4, R5, R6, R7, R8 +32 |
| 4 | 100k | R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R26, R28, R38, R39 |
| 2 | 5k1 | D_0402_woSilk | R45, R46 |
| 21 | 330 | R_0201_woSilk | R47, R48, R49, R50, R51, R52, R53, R54 +13 |
NotePad design files
The KiCad project lives in the Meteopresscz/PCB_Public repository on GitHub; these links point at the commit this page was built from.
- LayoutNotePad/NotePad.kicad_pcb
- SchematicNotePad/NotePad.kicad_sch
NotePad: common questions
What microcontroller does the NotePad use?
The NotePad is built around the ATmega168A-AU, from the AVR/Arduino family.
How big is the NotePad PCB?
The NotePad measures 151 × 212 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the NotePad?
155 components, from 41 distinct parts. The full bill of materials is listed on this page.
Where can I download the NotePad design files?
From the Meteopresscz/PCB_Public repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.
Can I use the NotePad design in my own project?
The repository has no license, so all rights stay with Meteopresscz. Use it as a reference, and ask the author before reusing the design.
Can I test firmware for the NotePad 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.
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