HardLabs

Logic

Keisuke063·rs775-smart-motor-driver·hardware/logic/logic.kicad_pcb

Logic PCB layout, top view — open source AVR/Arduino board by Keisuke063

About the Logic PCB

Logic is an open source AVR/Arduino PCB design by Keisuke063, published on GitHub. It is a 4-layer board measuring 50 × 50 mm, with 43 components from 32 distinct parts.

Its main chip is the ATMEGA4809-A, from the AVR/Arduino family. Other key parts include the LM78M05_TO252, AS5600, ATA6561 and MCP2515-XST. By type, the board carries 10 capacitors, 10 resistors, 7 connectors, 6 diodes, 5 ICs and 2 jumpers.

It belongs with the robotics & motion designs in this gallery.

From the project

Learning-oriented hardware project for an RS-775 motor driver system built around KiCad.

Learning-oriented hardware project for an RS-775 motor driver system built around KiCad.

The current design is split into two boards:

- hardware/logic/ for control, sensing, and communication - hardware/power/ for motor drive and power handling

Main devices currently used in the repository:

- ATmega4809 for control - VNH5019A-E for motor driving - AS5600 for magnetic angle sensing - MCP2515 + ATA6561 for CAN support

Main components on the Logic

ATMEGA4809-ALM78M05_TO252AS5600ATA6561MCP2515-XST

Logic bill of materials (BOM)

43 components, 32 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
ATMEGA4809-A
ATmega4809-A
U2
1
LM78M05_TO252
U3
1
AS5600
U4
1
ATA6561
U5
1
MCP2515-XST
MCP2515-xST
U6
1
ML49G-8.000-30-30/30X
Y1
1
Logic-Power A
J3
1
UART0
J4
1
UPDI/UART
J5
1
CAN
J6
1
Data Port
J7
1
ENC
J8
1
Logic-Power B
J9
1
+5V from PC
JP1
1
EN Term. R
JP2
1
RESET
SW1
1
UPDI/UART
SW2
1
STAT
D1
1
ERR
D2
1
COMM
D3
Show 12 more
QtyPartRefs
1
CCW
D4
1
CW
D5
1
1N4148
D6
6
0.1U
0.1u
C6, C8, C9, C10, C12, C13
1
0.47U
0.47u
C7
1
1u
C11
2
22P
22p
C14, C15
1
100K
100k
R10
5
1k
R11, R12, R13, R14, R15
1
120
R16
2
4.7K
4.7k
R17, R18
1
470
R19

Logic design files

The KiCad project lives in the Keisuke063/rs775-smart-motor-driver repository on GitHub; these links point at the commit this page was built from.

Logic: common questions

What microcontroller does the Logic use?

The Logic is built around the ATMEGA4809-A, from the AVR/Arduino family.

How big is the Logic PCB?

The Logic measures 50 × 50 mm, has 4 copper layers and is 1.6 mm thick.

How many components are on the Logic?

43 components, from 32 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 Logic design files?

From the Keisuke063/rs775-smart-motor-driver 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 Logic design in my own project?

The repository has no license, so all rights stay with Keisuke063. Use it as a reference, and ask the author before reusing the design.

Can I test firmware for the Logic 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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