NeoBit
About the NeoBit PCB
NeoBit is an open source PCB design by mignon-p, published on GitHub under the CC-BY-SA-4.0 license. It is a 2-layer board measuring 77.5 × 45.7 mm, with 25 components from 20 distinct parts.
Other key parts include the 74AHCT125, MCP1702-3302E_TO92 and MCP1702-5002E_TO92. By type, the board carries 10 capacitors, 6 connectors, 3 ICs, 3 resistors and 1 diode.
It belongs with the displays & leds and audio designs in this gallery.
From the project
KiCad files for a board that lets you hook up NeoPixels to a BBC micro:bit. The board also has a couple of slide potentiometers for input.
The neo:bit is a board which attaches to the [edge connector][11] of the [BBC micro:bit][16] and provides:
* Two slide potentiometers, connected to micro:bit pins P1 and P2, which can be read as analog inputs.
* A terminal block for connecting "[NeoPixels][92]" (WS-2812 LEDs), with a level shifter to convert from 3.3V logic (on pin P16) to 5V logic.
* A terminal block for connecting "[DotStars][93]" (APA-102 LEDs), with a level shifter to convert from 3.3V logic (on pins P13 and P15) to 5V logic.
Main components on the NeoBit
NeoBit bill of materials (BOM)
25 components, 20 distinct parts.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | 74AHCT125 | DIP-14_W7.62mm | U1 |
| 1 | MCP1702-3302E_TO92 | TO-92_Inline_Narrow_Oval | U2 |
| 1 | MCP1702-5002E_TO92 | TO-92_Inline_Narrow_Oval | U3 |
| 1 | AudioJack3_Ground | SJ1-3533NG | J1 |
| 1 | Barrel_Jack_MountingPin | BarrelJack_CUI_PJ-063AH_Horizontal_CircularHoles | J2 |
| 1 | Qwiic | JST_SH_SM04B-SRSS-TB_04x1.00mm_Angled | J3 |
| 1 | DotStars | TerminalBlock_4Ucon_1x04_P3.50mm_Vertical | J4 |
| 1 | microbit_edge_connector | 4UCON_10156_2x40_P1.27mm_Socket_Horizontal | J5 |
| 1 | NeoPixels | TerminalBlock_4Ucon_1x03_P3.50mm_Vertical | J6 |
| 2 | 10K | Bourns_PTA4543 | RV1, RV2 |
| 1 | D_Schottky | D_DO-41_SOD81_P7.62mm_Horizontal | D1 |
| 1 | 1000µF | CP_Radial_D10.0mm_P5.00mm | C1 |
| 1 | 0.1µF | C_Rect_L7.0mm_W2.5mm_P5.00mm | C2 |
| 4 | 1µF | C_Rect_L7.0mm_W2.5mm_P5.00mm | C3, C4, C5, C6 |
| 1 | 47µF | CP_Radial_D6.3mm_P2.50mm | C7 |
| 2 | 220uF | CP_Radial_D5.0mm_P2.50mm | C8, C9 |
| 1 | 10nF | C_Disc_D3.8mm_W2.6mm_P2.50mm | C10 |
| 1 | 100 | R_Axial_DIN0207_L6.3mm_D2.5mm_P2.54mm_Vertical | R1 |
| 1 | 470 | R_Axial_DIN0207_L6.3mm_D2.5mm_P2.54mm_Vertical | R2 |
| 1 | 22 | R_Axial_DIN0207_L6.3mm_D2.5mm_P2.54mm_Vertical | R3 |
NeoBit design files
The KiCad project lives in the mignon-p/NeoBit repository on GitHub; these links point at the commit this page was built from.
- LayoutNeoBit.kicad_pcb
NeoBit: common questions
How big is the NeoBit PCB?
The NeoBit measures 77.5 × 45.7 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the NeoBit?
25 components, from 20 distinct parts. The full bill of materials is listed on this page.
Where can I download the NeoBit design files?
From the mignon-p/NeoBit repository on GitHub, which has the KiCad layout; the links under Design files point to each one.
Can I use the NeoBit design in my own project?
Yes, under the terms of its CC-BY-SA-4.0 license, which mignon-p chose for the repository.
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