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Rover motor hat

dark-Phoenix2077·wall-e·PCBs/rover_motor_hat/rover_motor_hat.kicad_pcb

Rover motor hat layout, top view — open source AVR/Arduino board by dark-Phoenix2077

About the Rover motor hat

Rover motor hat is an open source AVR/Arduino PCB design by dark-Phoenix2077, published on GitHub. It is a 4-layer board measuring 54 × 24 mm, with 34 components from 19 distinct parts.

Its main chip is the ATmega328P-A, from the AVR/Arduino family. Other key parts include the TB6612FNG, LM2596S-5 and LD1117S33TR_SOT223. By type, the board carries 17 capacitors, 6 connectors, 5 ICs, 3 resistors, 1 crystal and 1 diode.

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

From the project

a custom smart rover with vision-assisted autonomous navigation and object tracking, built around a Raspberry Pi 3B+ and two fully custom PCB HATs.

(Just to be clear, I will be paying for this project myself)

The motor/PD PCB - a tiny little PCB that takes in a battery and 3 motors, and controls them via an ATmega chip, accepting high-level commands from the pi via gpio. it also pushes power to the pi from its own battery:

The vision PCB - a board with an esp32 and a pi camera, as well as usb c and gpio. it communicates mainly via usb c providing a usb camera feed to the pi (translated via the esp32), and uses the gpio for util functions. it has an adressable button (likelly will use for debugging/emergency shutdown purposes) and two…

Rover motor hat, from the project README
From the project README

Main components on the Rover motor hat

ATmega328P-ATB6612FNGLM2596S-5LD1117S33TR_SOT223

Rover motor hat bill of materials (BOM)

34 components, 19 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
ATmega328P-A
U1
2
TB6612FNG
U2, U3
1
LM2596S-5
U4
1
LD1117S33TR_SOT223
U5
1
16MHz
Y1
1
J_PI_GPIO
J1
1
Motor_A_Rear_Left
J2
1
Motor_B_Rear_Right
J3
1
Motor_C_Steering
J4
1
VMOT_Battery_Input
J5
1
ISP_Header
J6
1
D_Schottky
D1
1
L
L1
2
22pF
C1, C2
8
100nF
C3, C4, C10, C11, C12, C13, C14, C15
3
10uF
C5, C8, C9
3
100uF
C6, C16, C17
1
220uF
C7
3
10k
R1, R2, R3

Rover motor hat design files

The KiCad project lives in the dark-Phoenix2077/wall-e repository on GitHub; these links point at the commit this page was built from.

Rover motor hat: common questions

What microcontroller does the Rover motor hat use?

The Rover motor hat is built around the ATmega328P-A, from the AVR/Arduino family.

How big is the Rover motor hat?

The Rover motor hat measures 54 × 24 mm, has 4 copper layers and is 1.6 mm thick.

How many components are on the Rover motor hat?

34 components, from 19 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 Rover motor hat design files?

From the dark-Phoenix2077/wall-e 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 Rover motor hat design in my own project?

The repository has no license, so all rights stay with dark-Phoenix2077. Use it as a reference, and ask the author before reusing the design.

Can I test firmware for the Rover motor hat 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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