Mainboard
About the Mainboard PCB
Mainboard is an open source AVR/Arduino PCB design by aperfectcypher, published on GitHub under the Unlicense license. It is a 2-layer board measuring 123.3 × 79.8 mm, with 85 components from 33 distinct parts.
Its main chip is the ATmega2560-16A, from the AVR/Arduino family. Other key parts include the FT232RL, USBLC6-2P6, AIP78M05, L9110 and 74HC595. By type, the board carries 41 resistors, 17 capacitors, 11 connectors, 9 ICs, 4 diodes and 1 transistor.
From the project
A controller for Kerbal Space Program
Main components on the Mainboard
Mainboard bill of materials (BOM)
85 components, 33 distinct parts.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | ATmega2560-16A | TQFP-100_14x14mm_P0.5mm | U1 |
| 1 | FT232RL | SSOP-28_3.9x9.9mm_P0.635mm | U2 |
| 1 | USBLC6-2P6 | SOT-666 | U3 |
| 1 | AIP78M05 | TO-252-2 | U4 |
| 1 | L9110 | DIP-8_W7.62mm_Socket | U5 |
| 2 | 74HC595 | DIP-16_W7.62mm | U6, U7 |
| 2 | 74HC165 | DIP-16_W7.62mm | U8, U9 |
| 1 | BC849 | SOT-23 | Q2 |
| 1 | 16Mhz | Crystal_SMD_5032-2Pin_5.0x3.2mm | Y1 |
| 1 | ICSP | PinHeader_2x03_P2.54mm_Vertical | J1 |
| 1 | USB_B_Micro | USB_Micro-B_Molex-105017-0001 | J2 |
| 1 | DEALON DC-S050-200 | BarrelJack_CLIFF_FC681465S_SMT_Horizontal | J3 |
| 1 | PWR_SELECT | PinHeader_1x03_P2.54mm_Vertical | J4 |
| 1 | Conn_Joy1 | JST_PH_B6B-PH-K_1x06_P2.00mm_Vertical | J5 |
| 1 | Conn_Joy2 | JST_PH_B6B-PH-K_1x06_P2.00mm_Vertical | J6 |
| 1 | Conn_Throttle | JST_PH_B6B-PH-K_1x06_P2.00mm_Vertical | J7 |
| 1 | Conn_DGauges | JST_PH_B6B-PH-K_1x06_P2.00mm_Vertical | J8 |
| 1 | Conn_LCD | JST_PH_B7B-PH-K_1x07_P2.00mm_Vertical | J9 |
| 1 | Conn_AGauge | JST_PH_B2B-PH-K_1x02_P2.00mm_Vertical | J10 |
| 1 | Conn_SAS | JST_PHD_B32B-PHDSS_2x16_P2.00mm_Vertical | J11 |
Show 13 more
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | 500mA Poly | Fuse_0603_1608Metric | F1 |
| 2 | LED | LED_1206_3216Metric | D1, D2 |
| 1 | GREEN ON | LED_0603_1608Metric | D3 |
| 1 | 1N4002 | D_SOD-123F | D4 |
| 13 | 100nF | C_0603_1608Metric | C1, C2, C3, C4, C5, C9, C10, C12 +5 |
| 2 | 22pF | C_0603_1608Metric | C6, C8 |
| 1 | 330nF | C_0603_1608Metric | C7 |
| 1 | 50pF | C_0603_1608Metric | C11 |
| 5 | 1k | R_0603_1608Metric | R1, R2, R4, R5, R7 |
| 20 | 10K | R_0603_1608Metric | R3, R9, R24, R25, R26, R27, R28, R29 +12 |
| 1 | 1M | R_0603_1608Metric | R6 |
| 1 | 470 | R_0603_1608Metric | R8 |
| 14 | R? | R_0603_1608Metric | R10, R11, R12, R13, R14, R15, R16, R17 +6 |
Mainboard design files
The KiCad project lives in the aperfectcypher/KSP-Launchpad repository on GitHub; these links point at the commit this page was built from.
Mainboard: common questions
What microcontroller does the Mainboard use?
The Mainboard is built around the ATmega2560-16A, from the AVR/Arduino family.
How big is the Mainboard PCB?
The Mainboard measures 123.3 × 79.8 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the Mainboard?
85 components, from 33 distinct parts. The full bill of materials is listed on this page.
Where can I download the Mainboard design files?
From the aperfectcypher/KSP-Launchpad repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.
Can I use the Mainboard design in my own project?
Yes, under the terms of its Unlicense license, which aperfectcypher chose for the repository.
Can I test firmware for the Mainboard 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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