
OBC PDB
MUN-Baja/OBC-PDB
PCB design of Power Distribution Board and the On Board Computer with a ATMEGA2560 uC.

PCB with two relays for controlling a DIY reflow machine thingie
Burner is an open-source printed circuit board by SensaGroup, from the SensaGroup/Burner repository on GitHub. It is a 2-layer board of 122.5 × 58.4 mm with 76 parts on 66 nets, routed with 648 tracks and 135 vias.
It is built around the ATMEGA2560-16AU, CP2102N-A01-GQFN28R and MAX6675ISA+, with the ULN2003A and AOD417 among its other parts. Its parts include 19 resistors, 18 capacitors, 12 connectors, 9 ICs and 4 diodes. It belongs with the AVR (ATmega, ATtiny) boards of this library.
| Qty | Value | Footprint | References |
|---|---|---|---|
| 13 | 100nF | Capacitor_SMD:C_0603_1608Metric | C1, C2, C5, C6, C7, C8, C9, C10, C14, C15, C16, C17, C18 |
| 5 | 10k | Resistor_SMD:R_0603_1608Metric | R1, R2, R13, R14, R15 |
| 5 | 1k | Resistor_SMD:R_0603_1608Metric | R5, R16, R17, R18, R19 |
| 4 | LED | LED_SMD:LED_0805_2012Metric | D1, D2, D3, D4 |
| 4 | MountingHole | MountingHole:MountingHole_3.2mm_M3_Pad_Via | H1, H3, H4, H5 |
| 3 | 4k7 | Resistor_SMD:R_0603_1608Metric | R3, R4, R10 |
| 2 | 0 | Jumper:SolderJumper-2_P1.3mm_Bridged_Pad1.0x1.5mm | R8, R9 |
| 2 | 1k6 | Resistor_SMD:R_0603_1608Metric | R11, R12 |
| 2 | 22pF | Capacitor_SMD:C_0603_1608Metric | C3, C4 |
| 2 | 330 | Resistor_SMD:R_0603_1608Metric | R6, R7 |
| 2 | 4N25 | Package_DIP:DIP-6_W7.62mm | U2, U3 |
| 2 | AZ943 | burner:AZ943 | U5, U6 |
| 2 | KTYPE1 | TerminalBlock_Phoenix:TerminalBlock_Phoenix_MKDS-1,5-2_1x02_P5.00mm_Horizontal | J8, J9 |
| 2 | MAX6675 | Package_SO:SO-8_3.9x4.9mm_P1.27mm | IC1, IC2 |
| 2 | TestPoint | TestPoint:TestPoint_Pad_1.0x1.0mm | TP1, TP2 |
| 1 | 100uF | Capacitor_SMD:C_Elec_6.3x5.4 | C13 |
| 1 | 10uF | Capacitor_SMD:C_0603_1608Metric | C12 |
| 1 | 1604_conn | Connector_PinSocket_2.54mm:PinSocket_1x16_P2.54mm_Vertical | J6 |
| 1 | 16MHz | Crystal:Crystal_SMD_HC49-SD | Y1 |
| 1 | 1uF | Capacitor_SMD:C_0603_1608Metric | C11 |
| 1 | 220V_INPUT | TerminalBlock_Phoenix:TerminalBlock_Phoenix_MKDS-1,5-2_1x02_P5.00mm_Horizontal | J2 |
| 1 | 5V_INPUT | TerminalBlock_Phoenix:TerminalBlock_Phoenix_MKDS-1,5-2_1x02_P5.00mm_Horizontal | J3 |
| 1 | AOD417 | Package_TO_SOT_SMD:TO-252-2 | Q1 |
| 1 | ATmega2560-16AU | Package_QFP:TQFP-100_14x14mm_P0.5mm | U1 |
| 1 | BURNER1 | TerminalBlock_Phoenix:TerminalBlock_Phoenix_MKDS-1,5-2_1x02_P5.00mm_Horizontal | J5 |
| 1 | BURNER2 | TerminalBlock_Phoenix:TerminalBlock_Phoenix_MKDS-1,5-2_1x02_P5.00mm_Horizontal | J4 |
| 1 | CP2102N-A01-GQFN28 | Package_DFN_QFN:QFN-28-1EP_5x5mm_P0.5mm_EP3.35x3.35mm | U7 |
| 1 | ENCODER | Connector_PinSocket_2.54mm:PinSocket_1x05_P2.54mm_Vertical | J14 |
| 1 | FTDI | Connector_PinHeader_2.54mm:PinHeader_1x06_P2.54mm_Vertical | J13 |
| 1 | Fuse | Fuse:Fuse_0603_1608Metric | F3 |
| 1 | Fuse | Fuse:Fuse_0805_2012Metric | F2 |
| 1 | Fuse | Fuse:Fuseholder_TR5_Littelfuse_No560_No460 | F1 |
| 1 | I2C_DISPLAY | Connector_PinSocket_2.54mm:PinSocket_1x04_P2.54mm_Vertical | J7 |
| 1 | JUMPER | Jumper:SolderJumper-2_P1.3mm_Bridged_Pad1.0x1.5mm | JP4 |
| 1 | LOGO | logos:SENSA_15x6 | G*** |
| 1 | MCU_ISP | Connector_PinHeader_2.54mm:PinHeader_2x03_P2.54mm_Vertical | J1 |
| 1 | RESET | Jumper:SolderJumper-2_P1.3mm_Open_RoundedPad1.0x1.5mm | JP1 |
| 1 | ULN2003A | Package_SO:TSSOP-16_4.4x5mm_P0.65mm | U4 |
| 1 | USB_A | Connector_USB:USB_Micro-B_Molex-105017-0001 | J12 |

MUN-Baja/OBC-PDB
PCB design of Power Distribution Board and the On Board Computer with a ATMEGA2560 uC.


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It measures 122.5 × 58.4 mm and has 2 copper layers, 1.6 mm thick.
76 parts, built around the ATMEGA2560-16AU, CP2102N-A01-GQFN28R, MAX6675ISA+ and ULN2003A. The full list of its parts is on this page, with links to each part's symbol and footprint where PCBKit's library has them.
From the SensaGroup/Burner repository on GitHub, at the commit this page was made from: the board is burner.kicad_pcb. PCBKit opens the board in the browser, with nothing to install.
Its repository states no licence, so its author keeps all rights: ask SensaGroup before reusing the design.