Little Big Scroll 4
About the Little Big Scroll 4 PCB
Little Big Scroll 4 is an open source AVR/Arduino PCB design by TweetyDaBird, published on GitHub under the CC-BY-SA-4.0 license. It is a 2-layer board measuring 83.6 × 40 mm, with 19 components from 9 distinct parts.
Its main chip is the ProMicro, from the AVR/Arduino family. By type, the board carries 7 LEDs, 5 switches, 2 capacitors, 2 resistors, 1 IC and 1 connector.
It belongs with the keyboards and displays & leds designs in this gallery.
From the project
A family of macropads featuring a large Encoder wheel and (1?)/4 or 6 keys.
A low-cost and easy to build macro pad intended for among other things media controls.
- Uses a Promicro/Elite C or equivalent controller - Programmable with QMK and VIAL - Cherry MX style keyswitches - Kaihl hot swap sockets - Clickable Rotary encoder with up to 40mm wheel - Optional 0.91" 128x32 OLED screen - Optional Per Key RGB - Designed with a complete sandwich case for an easy build
Main components on the Little Big Scroll 4
Little Big Scroll 4 bill of materials (BOM)
19 components, 9 distinct parts.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | ProMicro | ArduinoProMicro-BackSide | U1 |
| 1 | Conn_01x02 | PinHeader_1x02_P2.54mm_Vertical | J1 |
| 1 | CC-BY-SA_4.0 | CC_BY_SA_40 | Lic1 |
| 4 | SW_Push | Kailh_socket_MX_RGB | SW1, SW2, SW3, SW4 |
| 1 | Rotary_Encoder_Switch | RotaryEncoder_Alps_EC11E-Switch_Vertical_H20mm | SW5 |
| 6 | SK6812MINI-E | MX_SK6812MINI-E | LED1, LED2, LED3, LED4, LED5, LED6 |
| 1 | OLED_4pin | SSD1306-0.91-OLED-4pin-128x32 | OLED1 |
| 2 | 100nF | R_Axial_DIN0204_L3.6mm_D1.6mm_P5.08mm_Horizontal | C1, C2 |
| 2 | 4K7 | R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R1, R2 |
Little Big Scroll 4 design files
The KiCad project lives in the TweetyDaBird/Little-Big-Scroll repository on GitHub; these links point at the commit this page was built from.
Little Big Scroll 4: common questions
What microcontroller does the Little Big Scroll 4 use?
The Little Big Scroll 4 is built around the ProMicro, from the AVR/Arduino family.
How big is the Little Big Scroll 4 PCB?
The Little Big Scroll 4 measures 83.6 × 40 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the Little Big Scroll 4?
19 components, from 9 distinct parts. The full bill of materials is listed on this page.
Where can I download the Little Big Scroll 4 design files?
From the TweetyDaBird/Little-Big-Scroll repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.
Can I use the Little Big Scroll 4 design in my own project?
Yes, under the terms of its CC-BY-SA-4.0 license, which TweetyDaBird chose for the repository.
Can I test firmware for the Little Big Scroll 4 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.
More boards in Little-Big-Scroll
Little Big Scroll 6
59.2 × 87 mm21 parts2LCC-BY-SA-4.055
AVR/ArduinoLittle Big Scroll 6
59.2 × 87 mm21 parts2LCC-BY-SA-4.055
Little Big Scroll 6 - Front Plate
59.2 × 87 mm13 parts2LCC-BY-SA-4.055
LBS6 Front Plate
59.2 × 87 mm11 parts2LCC-BY-SA-4.055
LBS 4 - Front Plate
88.6 × 45 mm9 parts2LCC-BY-SA-4.055
Little Big Scroll 4KEY
83.6 × 40 mm6 parts2LCC-BY-SA-4.055
Little Big Scroll OLED
83.6 × 40 mm5 parts2LCC-BY-SA-4.055
LBS6 Rear Plate
59.2 × 87 mm4 parts2LCC-BY-SA-4.055
Little Big Scroll 6 - Rear Plate
59.2 × 87 mm4 parts2LCC-BY-SA-4.055
LBS4 - Backplate
88.6 × 45 mm4 parts2LCC-BY-SA-4.055
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