Cont board
About the Cont board
Cont board is an open source AVR/Arduino PCB design by lbligh, published on GitHub. It is a 2-layer board measuring 238 × 67 mm, with 57 components from 32 distinct parts.
Its main chip is the Arduino_Nano_v3.x, from the AVR/Arduino family. Other key parts include the 463-296P, 533-8209, 801-796, ULN2803A and ATtiny202-SS. By type, the board carries 13 connectors, 10 capacitors, 10 resistors, 9 ICs, 6 jumpers and 3 transistors.
Main components on the Cont board
Cont board bill of materials (BOM)
57 components, 32 distinct parts — part numbers from the project's BOM.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | 463-296P LM2931AZ-5.0_TO92 | TO-92_Inline | IC1 |
| 1 | 533-8209 LM317_TO-220 | TO-220-3_Horizontal_TabDown | U1 |
| 2 | 801-796 MCP23017_SP | DIP-28_W7.62mm | U2, U4 |
| 2 | ULN2803A | DIP-18_W7.62mm_LongPads | U3, U5 |
| 3 | ATtiny202-SS | SOIC-8_3.9x4.9mm_P1.27mm | U6, U7, U8 |
| 1 | Arduino_Nano_v3.x | Arduino_Nano_Socket_Luke | A1 |
| 3 | 109-078 BD438 | TO-126-3_Vertical | Q1, Q2, Q3 |
| 3 | Conn_01x04 | PinHeader_1x04_P2.54mm_Vertical_SLIM | J1, J2, J3 |
| 1 | PBOARD_CONN | PinHeader_1x04_P2.54mm_Horizontal | J4 |
| 2 | Conn_01x15 | PinHeader_1x15_P2.54mm_Vertical | J5, J6 |
| 3 | Conn_01x03 | PinHeader_1x03_P2.54mm_Vertical | J7, J10, J11 |
| 3 | Conn_01x03 | TerminalBlock_bornier-3_P5.08mm_slim | J8, J9, J12 |
| 1 | Conn_02x03_Counter_Clockwise | PinHeader_2x03_P2.54mm_Horizontal_Short_Pins | J13 |
| 1 | 563-756 1A Slow Blow | Fuseholder_Cylinder-5x20mm_RS_Pro_564_756 | F1 |
| 1 | S_A2 | SolderJumper-3_P1.3mm_Open_RoundedPad1.0x1.5mm_NumberLabels | JP1 |
| 1 | S_A1 | SolderJumper-3_P1.3mm_Open_RoundedPad1.0x1.5mm_NumberLabels | JP2 |
| 1 | S_A0 | SolderJumper-3_P1.3mm_Open_RoundedPad1.0x1.5mm_NumberLabels | JP3 |
| 1 | L_A2 | SolderJumper-3_P1.3mm_Open_RoundedPad1.0x1.5mm_NumberLabels | JP4 |
| 1 | L_A1 | SolderJumper-3_P1.3mm_Open_RoundedPad1.0x1.5mm_NumberLabels | JP5 |
| 1 | L_A0 | SolderJumper-3_P1.3mm_Open_RoundedPad1.0x1.5mm_NumberLabels | JP6 |
Show 12 more
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | 897-1341 Screw_Terminal_01x06 | TerminalBlock_bornier-6_P5.08mm | PL1 |
| 1 | Conn_02x08_Counter_Clockwise | IDC-Header_2x08_P2.54mm_Vertical | PL2 |
| 1 | Conn_02x08_Counter_Clockwise | PinHeader_2x08_P2.54mm_Vertical_VNUM | PL3 |
| 1 | SW_SPDT | SW_SPDT_RS_Pro_734_7303_Latching | SW1 |
| 1 | 711-1078 10u 25V | CP_Radial_D5.0mm_P2.50mm | C1 |
| 3 | 100N 100n | C_Disc_D7.0mm_W2.5mm_P5.00mm | C2, C3, C6 |
| 3 | 10u | C_0603_1608Metric | C4, C7, C9 |
| 3 | 100n | C_0603_1608Metric | C5, C8, C10 |
| 1 | 22R | R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R1 |
| 5 | 4K7 4k7 | R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R2, R3, R4, R6, R7 |
| 1 | 243-7614 2R7 | R_Axial_DIN0918_L18.0mm_D9.0mm_P25.40mm_Horizontal | R5 |
| 3 | 470R | R_Axial_DIN0309_L9.0mm_D3.2mm_P12.70mm_Horizontal | R8, R9, R10 |
Cont board design files
The KiCad project lives in the lbligh/enigma-iib-lzb23 repository on GitHub; these links point at the commit this page was built from.
Cont board: common questions
What microcontroller does the Cont board use?
The Cont board is built around the Arduino_Nano_v3.x, from the AVR/Arduino family.
How big is the Cont board?
The Cont board measures 238 × 67 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the Cont board?
57 components, from 32 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 Cont board design files?
From the lbligh/enigma-iib-lzb23 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 Cont board design in my own project?
The repository has no license, so all rights stay with lbligh. Use it as a reference, and ask the author before reusing the design.
Can I test firmware for the Cont board 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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