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V2 board ecar

Jonny999999·electric-kart·hardware/V2.0_board-ecar/V2_board-ecar.kicad_pcb

V2 board ecar layout, top view — open source AVR/Arduino board by Jonny999999

About the V2 board ecar

V2 board ecar is an open source AVR/Arduino PCB design by Jonny999999, published on GitHub. It is a 2-layer board measuring 160 × 100 mm, with 95 components from 62 distinct parts.

Its main chip is the ATMEGA8A-P, from the AVR/Arduino family. Other key parts include the LM7818CT, LM2576T-5 and TC429. By type, the board carries 26 resistors, 24 connectors, 19 capacitors, 11 diodes, 4 ICs and 4 fuses.

It belongs with the power & battery designs in this gallery.

From the project

Firmware and pcb's for custom built electric kart

Firmware for Atmega-8 Microcontroller and kicad PCB-Files for a custom built electric kart. Note: The firmware and PCB files Version V1 were originally created in 2015, those have been added to this repository for archival purposes.

Note: make upload flashes the last compiled .elf file only -> also run make first for compiling and flashing the latest version.

V2 board ecar, from the project README
From the project README

Main components on the V2 board ecar

ATMEGA8A-PLM7818CTLM2576T-5TC429

V2 board ecar bill of materials (BOM)

95 components, 62 distinct parts.

QtyPartRefs
1
ATMEGA8A-P
IC1
1
LM7818CT
U1
1
LM2576T-5
U2
1
TC429
U3
2
BC547
Q1, Q3
1
IRFZ24N
Q2
1
2x BATT IN
J1
2
ST 2x GND
J2, J4
2
2x 24V filtered
J3, J23
1
PWM-Signal
J5
1
LED 3,2V 20mA [-, +]
J6
1
Gas Pedal
J7
1
Gate
J8
1
BATT
J9
1
24V
J10
1
18V
J11
1
5V
J12
1
Analog-in-2 0-5V
J13
1
IGBT [GND, Gate]
J14
1
Analog-in-3 - 30to5 (batt)
J15
Show 42 more
QtyPartRefs
1
2x Switch (to 5V)
J17
1
Relay contacts [NO, COM, NC]
J18
1
2x 5V
J19
1
ADC Battery
J20
1
ADC reserve
J21
1
ADC Gas-pedal
J22
1
Fan [GND-supp, Diode, Mosfet]
J24
1
ISP
P1
1
Buzzer
BZ1
1
slow, max 4A
F1
2
500mA
F2, F4
1
(H7 24V 70W) -> 3A
F3
1
LEG-5
K1
1
LTV-817
OC1
3
D
D1, D9, D11
1
1N5822
D2
1
TVS 28V (starts 31V)
D3
1
LED 3mm green 20mA 2.5V
D4
5
5V1
D5, D6, D7, D12, D13
1
100u
L1
1
100u
C1
1
330nF
C2
3
100nF
C3, C6, C7
2
2200uf
C4, C9
2
1000u
C5, C19
2
10uF
C8, C13
6
100n
C10, C12, C15, C16, C17, C18
1
10u
C11
1
100uF
C14
2
2.5
R1, R3
1
10
R2
5
10k
R4, R22, R23, R24, R25
2
470
R5, R21
1
320
R6
1
130
R7
1
100
R8
1
12k (15k used)
R9
1
4k7
R10
5
2k2
R11, R12, R20, R26, R27
3
1k
R13, R14, R18
1
100k
R16
2
22k
R17, R19

V2 board ecar design files

The KiCad project lives in the Jonny999999/electric-kart repository on GitHub; these links point at the commit this page was built from.

V2 board ecar: common questions

What microcontroller does the V2 board ecar use?

The V2 board ecar is built around the ATMEGA8A-P, from the AVR/Arduino family.

How big is the V2 board ecar?

The V2 board ecar measures 160 × 100 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the V2 board ecar?

95 components, from 62 distinct parts. The full bill of materials is listed on this page.

Where can I download the V2 board ecar design files?

From the Jonny999999/electric-kart repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.

Can I use the V2 board ecar design in my own project?

The repository has no license, so all rights stay with Jonny999999. Use it as a reference, and ask the author before reusing the design.

Can I test firmware for the V2 board ecar 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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