Prrplsattiny20 kikit panel
About the Prrplsattiny20 kikit panel PCB
Prrplsattiny20 kikit panel is an open source AVR/Arduino PCB design by jimktrains, published on GitHub. It is a 4-layer board measuring 57 × 57 mm, with 18 components from 7 distinct parts.
Its main chip is the ATTINY20-UUR, from the AVR/Arduino family. By type, the board carries 7 connectors, 7 diodes, 2 capacitors, 1 IC and 1 resistor.
It belongs with the displays & leds designs in this gallery.
From the project
PRR Position Light Signals based on an ATTiny20 ----------------------------------------------- Thumb for scale.
PRR Position Light Signals based on an ATTiny20 ----------------------------------------------- Thumb for scale.
The Pennsylvania Railroad (PRR), almost uniquely among railroads, used Position Light Signals (PLS) [[1]](https://en.wikipedia.org/wiki/NorthAmericanrailroadsignals#Positionlight_signals) [[2]](https://railroadsignals.us/signals/pl/pl.htm). (The Norfolk & Western used Colored Position Lights (CPL) [[2]]([https://railroadsignals.us/signals/pl/pl.htm) which were similar.)
Main components on the Prrplsattiny20 kikit panel
Prrplsattiny20 kikit panel bill of materials (BOM)
18 components, 7 distinct parts — part numbers from the project's BOM.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | ATTINY20-UUR ATtiny20-UUR | WLCSP-12_1.403x1.555mm_Layout6x4_P0.4mm_Stagger | U1 |
| 1 | CONN_02X08_COUNTER_CLOCKWISE Conn_02x08_Counter_Clockwise | Tag-Connect_TC2030-IDC-NL_2x03_P1.27mm_Vertical | J1 |
| 6 | CONN_01X01 Conn_01x01 | SolderWire-D0.7mm_Drill0.3 | J1001, J1002, J1003, J1004, J1005, J1006 |
| 7 | C779450 YELLOW LED | LED_0402_1005Metric | D1, D2, D3, D4, D5, D6, D7 |
| 1 | 100NF 100nF | C_0402_1005Metric | C1 |
| 1 | 22μF | C_0402_1005Metric | C1001 |
| 1 | 1M | R_0402_1005Metric | R1 |
Prrplsattiny20 kikit panel design files
The KiCad project lives in the jimktrains/prrplsattiny20 repository on GitHub; these links point at the commit this page was built from.
Prrplsattiny20 kikit panel: common questions
What microcontroller does the Prrplsattiny20 kikit panel use?
The Prrplsattiny20 kikit panel is built around the ATTINY20-UUR, from the AVR/Arduino family.
How big is the Prrplsattiny20 kikit panel PCB?
The Prrplsattiny20 kikit panel measures 57 × 57 mm, has 4 copper layers and is 0.6 mm thick.
How many components are on the Prrplsattiny20 kikit panel?
18 components, from 7 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 Prrplsattiny20 kikit panel design files?
From the jimktrains/prrplsattiny20 repository on GitHub, which has the KiCad layout and the BOM; the links under Design files point to each one.
Can I use the Prrplsattiny20 kikit panel design in my own project?
The repository has no license, so all rights stay with jimktrains. Use it as a reference, and ask the author before reusing the design.
Can I test firmware for the Prrplsattiny20 kikit panel 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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