V2.1 board ecar isolated
About the V2.1 board ecar isolated
V2.1 board ecar isolated is an open source AVR/Arduino PCB design by Jonny999999, published on GitHub. It is a 4-layer board measuring 160 × 100 mm, with 112 components from 77 distinct parts.
Its main chip is the ATMEGA8A-P, from the AVR/Arduino family. Other key parts include the LM7818CT, TC429 and LM358N. By type, the board carries 33 resistors, 21 connectors, 21 capacitors, 11 test points, 9 diodes and 4 ICs.
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.
Main components on the V2.1 board ecar isolated
V2.1 board ecar isolated bill of materials (BOM)
112 components, 77 distinct parts.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | ATMEGA8A-P | CERDIP-28_W7.62mm_SideBrazed_LongPads_Socket | IC1 |
| 1 | LM7818CT | TO-220-3_Vertical | U1 |
| 1 | TC429 | DIP-8_W7.62mm_Socket_LongPads | U3 |
| 1 | LM358N | DIP-8_W7.62mm_LongPads | U4 |
| 1 | BC547 | TO-92L | Q1 |
| 1 | IRFZ24N | TO-220-3_Vertical | Q2 |
| 1 | 2x BATT IN | TerminalBlock_bornier-2_P5.08mm | J1 |
| 1 | ST 2x GND power | TerminalBlock_bornier-2_P5.08mm | J2 |
| 1 | 2x GND (5V) | TerminalBlock_bornier-2_P5.08mm | J4 |
| 1 | PWM-Signal | PinHeader_1x01_P1.00mm_Vertical | J5 |
| 1 | LED 3,2V 20mA [-, +] | TerminalBlock_bornier-2_P5.08mm | J6 |
| 1 | Gas Pedal [5V, In, GND] | TerminalBlock_bornier-3_P5.08mm | J7 |
| 1 | Gate | PinHeader_1x01_P1.00mm_Vertical | J8 |
| 1 | BATT-F | PinHeader_1x01_P1.00mm_Vertical | J9 |
| 1 | 24V | PinHeader_1x01_P1.00mm_Vertical | J10 |
| 1 | 18V | PinHeader_1x01_P1.00mm_Vertical | J11 |
| 1 | 5V | PinHeader_1x01_P1.00mm_Vertical | J12 |
| 1 | ADC reserve [5V, in, GND] | TerminalBlock_bornier-3_P5.08mm | J13 |
| 1 | IGBT [Gate, GND] | TerminalBlock_bornier-2_P5.08mm | J14 |
| 1 | UART [GND, RX, TX] | PinHeader_1x03_P2.54mm_Vertical | J16 |
Show 57 more
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | 2x Switch (to 5V) [PC3, PC2] | TerminalBlock_bornier-2_P5.08mm | J17 |
| 1 | Relay contacts [NO, COM, NC] | TerminalBlock_bornier-3_P5.08mm | J18 |
| 1 | [5V, 5V-decoupled] | TerminalBlock_bornier-2_P5.08mm | J19 |
| 1 | ADC reserve | PinHeader_1x01_P1.00mm_Vertical | J21 |
| 1 | 2x 24V filtered | TerminalBlock_bornier-2_P5.08mm | J23 |
| 1 | Fan [GND/Mosfet-OUT, Diode, 24V-filtered] | TerminalBlock_bornier-3_P5.08mm | J24 |
| 1 | ISP | IDC-Header_2x05_P2.54mm_Vertical | P1 |
| 1 | Buzzer | Buzzer_TDK_PS1240P02BT_D12.2mm_H6.5mm | BZ1 |
| 1 | slow, max 4A | Fuseholder_Cylinder-5x20mm_Stelvio-Kontek_PTF78_Horizontal_Open | F1 |
| 1 | (H7 24V 70W) -> 3A | Fuseholder_Cylinder-5x20mm_Stelvio-Kontek_PTF78_Horizontal_Open | F3 |
| 1 | 500mA | Fuseholder_Cylinder-5x20mm_Stelvio-Kontek_PTF78_Horizontal_Open | F4 |
| 1 | 24V relay | Relay_SPDT_SANYOU_SRD_Series_Form_C | K1 |
| 4 | LTV-817 | DIP-4_W10.16mm_LongPads | OC1, OC2, OC3, OC4 |
| 1 | RSO-2405S | CONV_RSO-2405S | PS1 |
| 1 | 500k | Potentiometer_Piher_PT-10-V10_Vertical | RV1 |
| 1 | GNDD | PinHeader_1x01_P1.00mm_Vertical | TP1 |
| 1 | GND-power | PinHeader_1x01_P1.00mm_Vertical | TP2 |
| 1 | Driver-in | PinHeader_1x01_P1.00mm_Vertical | TP3 |
| 1 | Pedal-in | PinHeader_1x01_P1.00mm_Vertical | TP4 |
| 1 | Pedal-filtered | PinHeader_1x01_P1.00mm_Vertical | TP5 |
| 1 | BATT | PinHeader_1x01_P1.00mm_Vertical | TP6 |
| 1 | OP - | PinHeader_1x01_P1.00mm_Vertical | TP7 |
| 1 | OP + | PinHeader_1x01_P1.00mm_Vertical | TP8 |
| 1 | OP out | PinHeader_1x01_P1.00mm_Vertical | TP9 |
| 1 | SW-filtered | PinHeader_1x01_P1.00mm_Vertical | TP10 |
| 1 | SW-in | PinHeader_1x01_P1.00mm_Vertical | TP11 |
| 3 | D | D_T-1_P12.70mm_Horizontal | D1, D9, D11 |
| 1 | TVS 28V (starts 31V) | D_DO-201AE_P15.24mm_Horizontal | D3 |
| 1 | LED 3mm green 20mA 2.5V | LED_D3.0mm_Clear | D4 |
| 4 | 5V1 | D_A-405_P10.16mm_Horizontal | D5, D6, D12, D13 |
| 7 | 100n | C_Disc_D7.0mm_W2.5mm_P5.00mm | C1, C10, C12, C15, C17, C18, C21 |
| 2 | 330nF | C_Disc_D8.0mm_W5.0mm_P5.00mm | C2, C20 |
| 3 | 100nF | C_Disc_D7.0mm_W2.5mm_P5.00mm | C3, C6, C7 |
| 2 | 2200uf | CP_Radial_D18.0mm_P7.50mm | C4, C9 |
| 4 | 10uf | CP_Radial_D5.0mm_P2.50mm | C5, C8, C13, C16 |
| 1 | 10u | CP_Radial_D5.0mm_P2.50mm | C11 |
| 1 | 100uF | CP_Radial_D8.0mm_P5.00mm | C14 |
| 1 | 1000u | CP_Radial_D10.0mm_P5.00mm | C19 |
| 2 | 2.5 | R_Axial_DIN0922_L20.0mm_D9.0mm_P25.40mm_Horizontal | R1, R3 |
| 2 | 10 | R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R2, R17 |
| 6 | 10k | R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R4, R16, R18, R19, R22, R23 |
| 1 | 470 | R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R5 |
| 1 | 200 | R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R6 |
| 1 | 130 | R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R7 |
| 1 | 100 | R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R8 |
| 1 | 15k | R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R9 |
| 1 | 4k7 | R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R10 |
| 5 | 2k2 | R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R11, R12, R26, R27, R33 |
| 2 | 1k | R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R13, R14 |
| 1 | 330 | R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R15 |
| 1 | nopop | R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R20 |
| 2 | 510 | R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R21, R28 |
| 2 | 47k | R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R24, R25 |
| 1 | 20 | R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R29 |
| 1 | 150k | R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R30 |
| 1 | 100k | R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R31 |
| 1 | 2k4 | R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R32 |
V2.1 board ecar isolated 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.
V2.1 board ecar isolated: common questions
What microcontroller does the V2.1 board ecar isolated use?
The V2.1 board ecar isolated is built around the ATMEGA8A-P, from the AVR/Arduino family.
How big is the V2.1 board ecar isolated?
The V2.1 board ecar isolated measures 160 × 100 mm, has 4 copper layers and is 1.6 mm thick.
How many components are on the V2.1 board ecar isolated?
112 components, from 77 distinct parts. The full bill of materials is listed on this page.
Where can I download the V2.1 board ecar isolated 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 V2.1 board ecar isolated 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 V2.1 board ecar isolated 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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