2 layers132.1 × 45.7 mm
IPoS
peterheinrich/InternetOverSpaghetti
Transmitting IP packages over a pair of spaghetti thus demonstrating how media independent IP really is.
42 parts342
2 layers315.2 × 190 mm
PEL Project1
KHarisN/Meter-Testing-PCB- Size
- 315.2 × 190 mm
- Copper layers
- 2
- Thickness
- 1.67 mm
- Parts
- 160
- Nets
- 186
- Pads
- 527
- Tracks, vias
- 1,286, 188
- Pours
- 1
- Routed
- Yes
- KiCad
- KiCad 9.0 (file 20241229)
- Created
- 11 May 2026
- Updated
- 11 May 2026
Overview
PEL Project1 is an open-source printed circuit board by KHarisN, from the KHarisN/Meter-Testing-PCB repository on GitHub. It is a 2-layer board of 315.2 × 190 mm with 160 parts on 186 nets, routed with 1,286 tracks and 188 vias.
It is built around the ATMEGA328-PU, MAX232N and 74HC595, with the L7805 and RY-12W-K among its other parts. Its parts include 37 diodes, 33 resistors, 29 capacitors, 20 connectors and 17 transistors. It belongs with the AVR (ATmega, ATtiny) boards of this library.
Main components
5
ATMEGA328-PU
PDIP-28-40℃~+85℃ 1.8V~5.5V 10bit 1KB 20MHz 23 2KB 32KB 8 Bit AVR Built-in FLASH PDIP-28 Microcontrollers (MCU/MPU/SOC) ROHSMicrochip TechnologyMicrocontrollers (MCU/MPU/SOC)
MAX232N
PDIP-160℃~+70℃ 120Kbps 2 2 4.5V~5.5V Transceiver PDIP-16 RS232 ICs ROHSTexas InstrumentsRS232 ICs
74HC595
SOP-16-40℃~+85℃ 1 100ns@5V,50pF 10MHz 2V~6V 74HC 8 Serial-to-Serial or Parallel Tri-State SOP-16 Shift Registers ROHSGRShift Registers
L7805
TO-220ST0℃~+125℃@(Tj) 1 1.2A 20V 2V@(1A) 42uV 500uA 5V 73dB@(120Hz) Fixed Positive Short Circuit Protection TO-220ST Voltage Regulators - Linear, Low Drop Out (LDO) Regulators ROHSOSENVoltage Regulators - Linear, Low Drop Out (LDO) RegulatorsRY-12W-K
-- Lack of specifications ROHSFCL COMPONENTSUncategorised
Parts
160| Qty | Value | Footprint | References |
|---|---|---|---|
| 32 | 10k | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R2, R10, R11, R12, R13, R14, R15, R16, R17, R18, R19, R20, R21, R22, R23, R24 +16 |
| 18 | Screw_Terminal_01x03 | TerminalBlock_Phoenix:TerminalBlock_Phoenix_MKDS-1,5-3-5.08_1x03_P5.08mm_Horizontal | J1, J2, J3, J4, J5, J6, J7, J10, J11, J12, J13, J14, J15, J16, J17, J19 +2 |
| 17 | LED | LED_THT:LED_D3.0mm | D1, D2, D3, D4, D5, D6, D7, D8, D18, D19, D20, D21, D22, D23, D24, D25 +1 |
| 16 | 10 uF | Capacitor_THT:CP_Radial_D10.0mm_P7.50mm | C12, C13, C14, C15, C16, C17, C18, C19, C20, C21, C22, C23, C24, C25, C26, C27 |
| 16 | 1N4148 | Diode_THT:D_DO-35_SOD27_P7.62mm_Horizontal | D10, D11, D12, D13, D14, D15, D16, D17, D26, D27, D28, D29, D30, D31, D32, D33 |
| 16 | NPN | Package_TO_SOT_THT:TO-92L_Inline | Q1, Q2, Q3, Q4, Q5, Q6, Q7, Q8, Q9, Q10, Q11, Q12, Q13, Q14, Q15, Q16 |
| 16 | RY-12W-K | RY-12W-K:RELAY_RY-12W-K | K1, K2, K3, K4, K5, K6, K7, K8, K9, K10, K11, K12, K13, K14, K15, K16 |
| 5 | 1 uF | Capacitor_THT:CP_Radial_D8.0mm_P3.80mm | C2, C4, C5, C7, C8 |
| 4 | 1N4007 | Diode_THT:D_DO-41_SOD81_P10.16mm_Horizontal | D34, D35, D36, D37 |
| 3 | 10uF | Capacitor_THT:C_Axial_L3.8mm_D2.6mm_P7.50mm_Horizontal | C1, C3, C6 |
| 2 | 22pF | Capacitor_THT:C_Axial_L3.8mm_D2.6mm_P7.50mm_Horizontal | C9, C10 |
| 2 | 74HC595 | Package_DIP:DIP-16_W7.62mm_LongPads | U1, U2 |
| 1 | 1.5k | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R1 |
| 1 | 1000 uF | Capacitor_THT:CP_Radial_D10.0mm_P7.50mm | C38 |
| 1 | 16 MHz | Crystal:Crystal_HC49-4H_Vertical | Y1 |
| 1 | 2200uF | Capacitor_THT:CP_Radial_D17.0mm_P7.50mm | C11 |
| 1 | 2N3055 | Package_TO_SOT_THT:TO-3 | Q18 |
| 1 | 4700 uF | Capacitor_THT:CP_Radial_D17.0mm_P7.50mm | C37 |
| 1 | ATmega328-P | Package_DIP:DIP-28_W7.62mm | U4 |
| 1 | DE9_Socket | Connector_Dsub:DSUB-9_Socket_Horizontal_P2.77x2.54mm_EdgePinOffset9.40mm | J18 |
| 1 | L7805 | L7805CV:TO255P1040X460X1968-3 | U5 |
| 1 | LM7812_TO220 | Package_TO_SOT_THT:TO-220-3_Vertical | U8 |
| 1 | LOGO | LOGO | G*** |
| 1 | MAX232 | MAX232N:MAX232N | U3 |
| 1 | Screw_Terminal_01x02 | TerminalBlock_Phoenix:TerminalBlock_Phoenix_MKDS-1,5-2-5.08_1x02_P5.08mm_Horizontal | J20 |
Questions
How big is the PEL Project1 PCB?
It measures 315.2 × 190 mm and has 2 copper layers, 1.67 mm thick.
What parts does the PEL Project1 use?
160 parts, built around the ATMEGA328-PU, MAX232N, 74HC595 and L7805. 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 PEL Project1 KiCad files?
From the KHarisN/Meter-Testing-PCB repository on GitHub, at the commit this page was made from: the board is PEL_Project1.kicad_pcb and its schematic PEL_Project1.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the PEL Project1 design in my own project?
Its repository states no licence, so its author keeps all rights: ask KHarisN before reusing the design.
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