Ocelot vA3
About the Ocelot vA3 PCB
Ocelot vA3 is an open source AVR/Arduino PCB design by turboedge, published on GitHub under the GPL-2.0 license. It is a 2-layer board measuring 80 × 99.8 mm, with 206 components from 75 distinct parts.
Its main chip is the MPXH6115A6T1, from the AVR/Arduino family. Other key parts include the IXDN602SIA, TS2940CP50, MPXH6400AC6U, MP6600GR-Z and CP2102N-A01-GQFN24. By type, the board carries 55 resistors, 49 capacitors, 22 jumpers, 22 LEDs, 19 diodes and 13 transistors.
It belongs with the usb & debug tools designs in this gallery.
From the project
EMS boards powered by Speeduino
The reset button was added as the only reset connection made to the microcontroller to prevent unwanted resets from USB connected devices. There is a caveat to this arrangement though. While the first time a firmware is loaded it will go on without intervention, subsequent times will require the user to hold the reset button down then release the button when the program starts the upload process. If the upload does not start right away go back and try again.
Main components on the Ocelot vA3
Ocelot vA3 bill of materials (BOM)
206 components, 75 distinct parts — part numbers from the project's BOM.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 2 | IXDN602SIA | SOIC-8_3.9x4.9mm_P1.27mm | IC1, IC2 |
| 1 | MPXH6115A6T1 ATmega2560-16AU | TQFP-100_14x14mm_P0.5mm | U1 |
| 1 | TS2940CP50 KP234XTMA1 | XDCR_KP234XTMA1 | U2 |
| 1 | MPXH6400AC6U MAP | Freescale_98ARH99089A | U3 |
| 1 | MP6600GR-Z LM2940LD-5.0_NOPB | WSON-8-1EP_7VIAS | U4 |
| 1 | MP6600GR-Z MP6600 | QFN-24-1EP_4x4mm_P0.5mm_EP2.7x2.7mm_ThermalVias | U5 |
| 1 | CP2102N-A01-GQFN24 | QFN-24-1EP_4x4mm_P0.5mm_EP2.6x2.6mm_ThermalVias | U6 |
| 1 | LMV321LILT | SOT-23-5 | U7 |
| 4 | NCV8402ADDR2G NCV8402AD | SOIC-8_3.9x4.9mm_P1.27mm | Q1, Q2, Q11, Q12 |
| 8 | NCV8406BDTRKG NCV8406 | TO-252-3_TabPin2 | Q3, Q4, Q5, Q6, Q7, Q8, Q9, Q10 |
| 1 | FDN340P | SOT-23 | Q13 |
| 1 | YSX321SL 16MHz | Crystal_SMD_3225-4Pin_3.2x2.5mm | Y1 |
| 1 | Conn_02x24_Top_Bottom | JSA_ZRO_48_Black | J1 |
| 1 | DNP External MAP Conn | SolderWirePad_single_1mmDrill | J2 |
| 1 | USB_B | USB_B_JST_UBB-4R-D14T-4D_Horizontal | J3 |
| 1 | ISP | PinHeader_2x03_P2.54mm_Vertical | J4 |
| 1 | Conn_01x04 | PinHeader_1x04_P2.00mm_Vertical | J5 |
| 1 | DNP CAN | PinHeader_1x02_P2.54mm_Vertical | P3 |
| 1 | DNP SER2 | Pin_Header_Straight_1x04_Pitch2.54mm | P4 |
| 1 | DNP SPI0 | Pin_Header_Straight_1x04_Pitch2.54mm | P5 |
Show 55 more
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | DNP SER0 | Pin_Header_Straight_1x04_Pitch2.54mm | P6 |
| 1 | DNP SPI1 | Pin_Header_Straight_1x04_Pitch2.54mm | P7 |
| 1 | DNP SER3 | Pin_Header_Straight_1x04_Pitch2.54mm | P8 |
| 1 | DNP Dual VR C | DIP-8_W7.62mm_Socket | P9 |
| 2 | 0ZCJ0050AF2E 500mA/1A 24V | Fuse_1206_3216Metric | F1, F3 |
| 1 | 0ZCF0100AF2A 1A 60V | Fuse_2920_7451Metric_Castellated | F2 |
| 2 | DNP HALL_VR | JPR_3POS_SMLHL | JP2, JP3 |
| 2 | DNP PULLUP | JPR_2POS_SMLHL | JP4, JP5 |
| 1 | DNP SO/PARA | SolderJumper-3_P1.3mm_Bridged123_Pad1.0x1.5mm_NumberLabels | JP6 |
| 5 | DNP PULLUPDWN | SolderJumper-3_P1.3mm_Open_Pad1.0x1.5mm_NumberLabels | JP7, JP8, JP13, JP14, JP19 |
| 1 | DNP Onboard MAP Enable | SolderJumper-2_P1.3mm_Bridged_Pad1.0x1.5mm | JP9 |
| 1 | DNP TACHSEL | SolderJumper-3_P1.3mm_Bridged12_Pad1.0x1.5mm_NumberLabels | JP10 |
| 2 | DNP SolderJumper_2_Open | SolderJumper-2_P1.3mm_Open_Pad1.0x1.5mm | JP11, JP12 |
| 4 | DNP FB CONTROL | SolderJumper-2_P1.3mm_Bridged_Pad1.0x1.5mm | JP15, JP16, JP17, JP18 |
| 4 | DNP FB CONTROL | SolderJumper-2_P1.3mm_Bridged_Pad1.0x1.5mm_VisibleBridge | JP20, JP21, JP22, JP23 |
| 1 | KMS233GPLFG | SW_SPST_CK_KMS2xxGP | SW1 |
| 22 | SML-310LTT86 RED | LED_0402_1005Metric | LED1, LED2, LED3, LED4, LED5, LED6, LED7, LED8 +14 |
| 4 | QSBT40-7-F | SOT-363_SC-70-6 | D2, D3, D4, D13 |
| 1 | SMBJ40A 40V UNI 600W | D_SMB | D32 |
| 1 | SDM160S1FQ-7 60V 1A | D_SOD-123F | D33 |
| 1 | 1SMB5919BT3G | D_SMB | D34 |
| 1 | SP0503BAHT | SOT-143 | D35 |
| 1 | BAS70-02V-V-G-08 BAS70KFILM | D_SOD-523 | D36 |
| 4 | 60V 1A | D_SOD-123F | D37, D38, D39, D40 |
| 6 | BAS16VA | SOT-563 | D42, D43, D44, D45, D46, D47 |
| 25 | CL21B104KBFNNNE u1 | C_0603_1608Metric | C1, C2, C3, C4, C5, C6, C7, C8 +17 |
| 9 | CL21B224KBFNNNE u22 | C_0603_1608Metric | C9, C10, C11, C12, C21, C39, C45, C49 +1 |
| 1 | CL21C470JBANNNC 47p | C_0603_1608Metric | C20 |
| 4 | CL21B105KBFNNNE 1u | C_0603_1608Metric | C23, C28, C29, C40 |
| 1 | CL21B103KBCNNNC u01 | C_0603_1608Metric | C30 |
| 2 | EEE-FT1H470AL 47u 50v | CP_Elec_6.3x5.4 | C32, C36 |
| 1 | T55A476M6R3C0200 47u | CP_EIA-3216-18_Kemet-A | C33 |
| 2 | 4u7 | C_0603_1608Metric | C41, C43 |
| 2 | u1 | C_0603_1608Metric | C42, C44 |
| 2 | 22p | C_0603_1608Metric | C46, C47 |
| 5 | RK73H2ATTD1001F 1k | R_0603_1608Metric | R1, R23, R24, R68, R69 |
| 1 | ERA6AEB392V 3k9 0.1% | R_0805_2012Metric | R2 |
| 5 | ERA6AEB2491V 2k49 0.1% | R_0805_2012Metric | R3, R4, R5, R12, R13 |
| 1 | ERA6AEB102V 1k 0.1% | R_0805_2012Metric | R6 |
| 12 | RK73H2ATTD4700F 470r | R_0805_2012Metric | R7, R8, R9, R10, R11, R15, R16, R17 +4 |
| 1 | RK73B1JTTD272J 4k7 | R_0603_1608Metric | R14 |
| 2 | RK73H2ATTD5102F 51k | R_0402_1005Metric | R20, R74 |
| 4 | RK73B1JTTD104J 100k | R_0402_1005Metric | R27, R28, R29, R30 |
| 5 | RK73H2ATTD4700F 1k | R_0603_1608Metric | R35, R36, R37, R38, R73 |
| 4 | RK73H3ATTE15R0F 15r | R_2512_6332Metric | R39, R40, R41, R42 |
| 2 | RK73B1JTTD104J 4k7 | R_0603_1608Metric | R56, R72 |
| 2 | RK73H2ATTD2200F 220r | R_0805_2012Metric | R70, R71 |
| 1 | RK73H2ATTD2203F 220k | R_0402_1005Metric | R75 |
| 1 | RK73H2ATTD2203F 1k | R_0603_1608Metric | R76 |
| 1 | 22k1 | R_0402_1005Metric | R77 |
| 1 | 47k5 | R_0402_1005Metric | R78 |
| 2 | 10k | R_0603_1608Metric | R79, R80 |
| 1 | 4k7 | R_0603_1608Metric | R81 |
| 2 | YC158TJR-07100KL | YC158TJR07100KL | RN1, RN2 |
| 2 | EXB-E10C473J EXB-E10C472J | EXBE10C473J | RN3, RN4 |
Ocelot vA3 design files
The KiCad project lives in the turboedge/SpeedyBoards repository on GitHub; these links point at the commit this page was built from.
Ocelot vA3: common questions
What microcontroller does the Ocelot vA3 use?
The Ocelot vA3 is built around the MPXH6115A6T1, from the AVR/Arduino family.
How big is the Ocelot vA3 PCB?
The Ocelot vA3 measures 80 × 99.8 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the Ocelot vA3?
206 components, from 75 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 Ocelot vA3 design files?
From the turboedge/SpeedyBoards 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 Ocelot vA3 design in my own project?
Yes, under the terms of its GPL-2.0 license, which turboedge chose for the repository.
Can I test firmware for the Ocelot vA3 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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