2 layers
2 layers90 × 65 mm
Clockmodule
JopjeKnopje/clockmoduleClock Module
- Size
- 90 × 65 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 42
- Nets
- 27
- Pads
- 120
- Tracks, vias
- 196, 2
- Pours
- 1
- Routed
- Yes
- KiCad
- KiCad 8.0 (file 20240108)
- Created
- 29 Mar 2022
- Updated
- 6 Aug 2024
Overview
Clockmodule is an open-source printed circuit board by JopjeKnopje, from the JopjeKnopje/clockmodule repository on GitHub. It is a 2-layer board of 90 × 65 mm with 42 parts on 27 nets, routed with 196 tracks and 2 vias.
It is built around the NE555P. Its parts include 11 capacitors, 11 resistors, 5 ICs, 5 diodes and 3 connectors. It belongs with the lEDs and displays boards of this library.
Main components
1README
README.mdClock Module
The idea behind this project is to have a standalone clock circuit to debug ICs at a very low clock speed.
It is mainly inspired by Ben Eater's version.
Features
- Manual pulse Mode.
- Variable frequency clock.
- DC Input Jack 7v - 15v @ approx. 100mA.
- Raw 5v power in for breadboard compatability.
- Lots of LEDs :)
Parts
- 2x 0.01uF - Ceramic Capacitor
- 2x 4.7uF - Capacitor
- 1x 470uF - Capacitor
- 1x .33uF - Ceramic Capacitor
- 4x .1uF - Ceramic Capacitor
- 1x 1uF - Capacitor
- 1x 1N4007 - Diode
- 4x 5mm LED
- 2x 01x02 Female Pin header
- 1x DC Jack
- 6x 1K - Resistor
- 2x 51K - Resistor
- 2x 10K - Resistor
- 1x 100K - Potentiometer linear
- 2x Button
- 3x NE555P
- 1x L7805
- 1x 7400
What does it look like
KiCad Render
Todo
- Use CMOS ICs for a 5vpp output
- Add partslist
- Add photos
- Swap silkscreen position of c3 and c4
- Different footprint for c8
Parts
42| Qty | Value | Footprint | References |
|---|---|---|---|
| 7 | 1K | Resistor_THT:R_Axial_DIN0204_L3.6mm_D1.6mm_P7.62mm_Horizontal | R1, R2, R3, R4, R6, R9, R11 |
| 4 | .1uF | Capacitor_THT:C_Disc_D3.0mm_W1.6mm_P2.50mm | C5, C6, C7, C9 |
| 4 | LED | LED_THT:LED_D5.0mm | D2, D3, D4, D5 |
| 4 | MountingHole | MountingHole:MountingHole_4.3mm_M4 | H1, H2, H3, H4 |
| 3 | NE555P | Package_DIP:DIP-8_W7.62mm | U1, U6, U7 |
| 2 | 0.01uF | Capacitor_THT:C_Disc_D3.0mm_W1.6mm_P2.50mm | C1, C10 |
| 2 | 10K | Resistor_THT:R_Axial_DIN0204_L3.6mm_D1.6mm_P7.62mm_Horizontal | R7, R8 |
| 2 | 4.7uF | Capacitor_THT:CP_Radial_D4.0mm_P1.50mm | C2, C12 |
| 2 | 51K | Resistor_THT:R_Axial_DIN0204_L3.6mm_D1.6mm_P7.62mm_Horizontal | R5, R10 |
| 2 | SW_Push | Button_Switch_THT:SW_PUSH_6mm_H5mm | SW1, SW2 |
| 1 | .33uF | Capacitor_THT:C_Disc_D3.0mm_W1.6mm_P2.50mm | C4 |
| 1 | 100K | w_pth_resistors:trimmer_alps-rk09k1130ah1 | RV1 |
| 1 | 1N4007 | Diode_THT:D_DO-41_SOD81_P7.62mm_Horizontal | D1 |
| 1 | 1uF | Capacitor_THT:CP_Radial_D4.0mm_P1.50mm | C8 |
| 1 | 470 | Capacitor_THT:CP_Radial_D6.3mm_P2.50mm | C3 |
| 1 | 7400 | Package_DIP:DIP-14_W7.62mm | U8 |
| 1 | Clock output | Connector_PinSocket_2.54mm:PinSocket_1x02_P2.54mm_Vertical | J2 |
| 1 | DC Input | Connector_BarrelJack:BarrelJack_GCT_DCJ200-10-A_Horizontal | J3 |
| 1 | L7805_J | Package_TO_SOT_THT:TO-220-3_Horizontal_TabDown | U3 |
| 1 | Vin | Connector_PinSocket_2.54mm:PinSocket_1x02_P2.54mm_Vertical | J1 |
Questions
How big is the Clockmodule PCB?
It measures 90 × 65 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Clockmodule use?
42 parts, built around the NE555P. 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 Clockmodule KiCad files?
From the JopjeKnopje/clockmodule repository on GitHub, at the commit this page was made from: the board is rev-0.1/clockmodule.kicad_pcb and its schematic rev-0.1/clockmodule.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Clockmodule design in my own project?
Its repository states no licence, so its author keeps all rights: ask JopjeKnopje before reusing the design.
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