2 layers98.4 × 93.8 mm
2 layers43.2 × 43.2 mm
My first two layer PCB, spinning LED effect with no micro-controller or code.
- Size
- 43.2 × 43.2 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 27
- Nets
- 31
- Pads
- 93
- Tracks, vias
- 275, 44
- Pours
- 2
- Routed
- Yes
- KiCad
- KiCad 4
- Created
- 22 Mar 2019
- Updated
- 14 Apr 2022
Overview
Test1 is an open-source printed circuit board by PStinno, from the PStinno/led-spinner-pcb repository on GitHub, published under the CC-BY-SA-4.0 licence. It is a 2-layer board of 43.2 × 43.2 mm with 27 parts on 31 nets, routed with 275 tracks and 44 vias.
It is built around the 74AHC1G08GW and ICM7555N. Its parts include 16 diodes, 4 ICs, 3 resistors, 2 capacitors and 1 switch.
Main components
2
74AHC1G08GW
SOT-353-40℃~+125℃ 1 1.5V~3.85V 1.9V~2V、2.9V~3V、3.7V~3.94V、4.4V~4.5V 100mV、360mV~550mV 10nA 2 2V~5.5V 500mV~1.65V 74AHC Series 9.5ns@3.3V,15pF AND Gate Overvoltage-tolerant input StandardCMOS SOT-353 Logic Gates ROHSMDDLogic Gates
ICM7555N
DIP-8-40℃~+85℃ 1 30uA 4.5V~15V Adjustable duty cycle oscillation DIP-8 555 Timers / Counters ROHSHGSEMITimers / Counters
README
README.mdled-spinner-pcb
My first two layer PCB, spinning LED effect with no micro-controller or code.
The circuit consists of two 4017 decade counters, connected together to create sixteen sequential outputs. The outputs progress on each clock cycle and loop back to the beginning when the end is reached. Each output is connected to an LED on the perimeter of the PCB. The clock input is connected to a 555 timer IC in an astable configuration. This generates a continous square wave, causing the progression of the outputs and the spinning effect. The momentary push button completes the circuit, so it is only powered when the button is held down.
This work is licensed under a Creative Commons Attribution-ShareAlike 4.0 International License.
Parts
27| Qty | Value | Footprint | References |
|---|---|---|---|
| 16 | LED | LEDs:LED_0805 | D1, D2, D3, D4, D5, D6, D7, D8, D9, D10, D11, D12, D13, D14, D15, D16 |
| 2 | 4017 | Housings_SOIC:SOIC-16_3.9x9.9mm_Pitch1.27mm | U3, U4 |
| 1 | 10nF | Capacitors_SMD:C_0805 | C2 |
| 1 | 1K | Resistors_SMD:R_0805 | R2 |
| 1 | 1uF | Capacitors_SMD:C_0805 | C1 |
| 1 | 68k | Resistors_SMD:R_0805 | R3 |
| 1 | 74AHC1G08 | TO_SOT_Packages_SMD:SOT-353_SC-70-5 | U2 |
| 1 | CR2032 3V | Coin_Cell_Holders:MPD_BA2032SM | BT1 |
| 1 | ICM7555 | Housings_SOIC:SOIC-8_3.9x4.9mm_Pitch1.27mm | U1 |
| 1 | R | Resistors_SMD:R_0805 | R1 |
| 1 | SW_Push | Buttons_Switches_SMD:SW_SPST_PTS645 | SW1 |
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Questions
How big is the Test1 PCB?
It measures 43.2 × 43.2 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Test1 use?
27 parts, built around the 74AHC1G08GW and ICM7555N. 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 Test1 KiCad files?
From the PStinno/led-spinner-pcb repository on GitHub, at the commit this page was made from: the board is kicadFiles/Test1.kicad_pcb. PCBKit opens the board in the browser, with nothing to install.
Can I use the Test1 design in my own project?
Its repository publishes it under the CC-BY-SA-4.0 licence: you may reuse it on that licence's terms (keep the author's notice, and for a copyleft licence share your changes alike).