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Bobbycar

Jana-Marie·hoverboard-breakout·bobbycar_breakout/bobbycar.kicad_pcb

Bobbycar PCB layout, top view — open source board by Jana-Marie
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About the Bobbycar PCB

Bobbycar is an open source PCB design by Jana-Marie, published on GitHub under the GPL-3.0 license. It is a 2-layer board measuring 61.7 × 26.9 mm, with 28 components from 16 distinct parts.

Other key parts include the 78L33ACUTR. By type, the board carries 8 capacitors, 7 resistors, 6 connectors, 3 diodes, 2 jumpers and 1 IC.

It belongs with the dev boards & breakouts designs in this gallery.

From the project

Hoverboard breakout board.

Breakout board for hoverboard mainboards, it grands easy access to the boards uart, analog inputs PA2 and PA3 as well as I2C. It features a footprint for a generic 3.3V or 5V LDO (e.g. CJ78L05, L78L33ACUTR), screw terminals for the analog inputs, a power LED and a footprint for a nunchuck.

Always mount the diode, the LED and the LDO. For I2C also two 3k3 pullups (labeled I2C) are mounted, for ADC you can add up to two pulldowns and filter capacitors.

Bobbycar, from the project README
From the project README

Main components on the Bobbycar

78L33ACUTR

Bobbycar bill of materials (BOM)

28 components, 16 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
78L33ACUTR
L7805SOT89
U1
2
B04B-XH-A
Conn_01x04
J1, J2
3
Screw_Terminal_01x02
J3, J4, J5
1
Conn_01x04
J6
2
Jumper_NC_Dual
JP1, JP2
1
Conn_01x03
UART1
2
D
D1, D2
1
LED
D3
2
490-3261-1
C_Small
C1, C2
2
490-1320-6
1uF
C3, C4
2
490-1719-1
22uF
C5, C6
2
C_Small
C7, C8
2
R_Small
R1, R2
1
311-220HR
220Ohm
R3
2
CRCW04023K30FKED
3k3
Vishay
R4, R5
2
R_Small
R6, R7

Bobbycar design files

The KiCad project lives in the Jana-Marie/hoverboard-breakout repository on GitHub; these links point at the commit this page was built from.

Bobbycar: common questions

How big is the Bobbycar PCB?

The Bobbycar measures 61.7 × 26.9 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Bobbycar?

28 components, from 16 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 Bobbycar design files?

From the Jana-Marie/hoverboard-breakout repository on GitHub, which has the KiCad layout, the schematic and the BOM; the links under Design files point to each one.

Can I use the Bobbycar design in my own project?

Yes, under the terms of its GPL-3.0 license, which Jana-Marie chose for the repository.

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