8 layers118 × 100 mm
Kria k26-devboard
antmicro/kria-k26-devboard
Open source AMD Xilinx Kria UltraScale+ SoM baseboard
660 parts83Apache-2.0
2 layers54 × 79 mm
CharliePad
GerardoNevarez/CharliePadSmall macropad powewed by an ATtiny85 (based on DigiSpark)
- Size
- 54 × 79 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 30
- Nets
- 17
- Pads
- 138
- Tracks, vias
- 197, 21
- Pours
- 2
- Routed
- Yes
- KiCad
- KiCad 5 (file 20171130)
- Created
- 23 Aug 2021
- Updated
- 26 Mar 2024
Overview
CharliePad is an open-source printed circuit board by GerardoNevarez, from the GerardoNevarez/CharliePad repository on GitHub, published under the CC0-1.0 licence. It is a 2-layer board of 54 × 79 mm with 30 parts on 17 nets, routed with 197 tracks and 21 vias.
It is built around the ATTINY85-20PU, 1N4148WS and USB4105-GF-A. Its parts include 12 switches, 6 diodes, 5 resistors, 2 capacitors and 1 IC. It belongs with the keyboards and input boards and the AVR (ATmega, ATtiny) boards of this library.
Main components
3
ATTINY85-20PU
PDIP-8-40℃~+85℃ 10bit 2.7V~5.5V 20MHz 512Byte 512Byte 6 8 Bit 8KB AVR Built-in FLASH PDIP-8 Microcontrollers (MCU/MPU/SOC) ROHSMicrochip TechnologyMicrocontrollers (MCU/MPU/SOC)
1N4148WS
SOD-3231.25V@150mA 100V 150mA 1uA@75V 200mW 2A 4ns Independent SOD-323 Switching Diodes ROHSJiangsu Changjing Electronics Technology (CJ)Switching Diodes
USB4105-GF-A
SMD-40℃~+85℃ 1 12P 48V 5A Black Female Surface Mount, Right Angle Type-C USB 2.0 SMD USB Connectors ROHSGlobal Connector Technology (GCT)USB Connectors
README
README.mdCharliePad
Parts
30| Qty | Value | Footprint | References |
|---|---|---|---|
| 12 | SW_PUSH | footprints:SW_PG1350_single_b2 | SW1, SW2, SW3, SW4, SW5, SW6, SW7, SW8, SW9, SW10, SW11, SW12 |
| 4 | 1N4148WS | Diode_SMD:D_SOD-323 | D3, D4, D5, D6 |
| 2 | 3.6V | Diode_SMD:D_SOD-123 | D1, D2 |
| 2 | 5.1K | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R4, R5 |
| 2 | 68 | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R2, R3 |
| 1 | 0.1uf | Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C2 |
| 1 | 1.5K | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R1 |
| 1 | 4.7uf | Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C1 |
| 1 | ATtiny85-20PU | Package_DIP:DIP-8_W7.62mm_Socket | U1 |
| 1 | LOGO | footprints:charliepad | G*** |
| 1 | LOGO | footprints:alebrije | G*** |
| 1 | Polyfuse 1206L050YR | footprints:PTC_1206 | F1 |
| 1 | USB4105-GF-A | footprints:GCT_USB4105-GF-A | J1 |
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Questions
How big is the CharliePad PCB?
It measures 54 × 79 mm and has 2 copper layers, 1.6 mm thick.
What parts does the CharliePad use?
30 parts, built around the ATTINY85-20PU, 1N4148WS and USB4105-GF-A. 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 CharliePad KiCad files?
From the GerardoNevarez/CharliePad repository on GitHub, at the commit this page was made from: the board is charliepad.kicad_pcb. PCBKit opens the board in the browser, with nothing to install.
Can I use the CharliePad design in my own project?
Its repository publishes it under the CC0-1.0 licence: you may reuse it on that licence's terms (keep the author's notice, and for a copyleft licence share your changes alike).