ReleaseBoard
About the ReleaseBoard PCB
ReleaseBoard is an open source AVR/Arduino PCB design by AvalonROV, published on GitHub. It is a 2-layer board measuring 80 × 30 mm, with 43 components from 23 distinct parts.
Its main chip is the ATTINY85-20PU, from the AVR/Arduino family. Other key parts include the LM7809CT, LM324 and LM78L05ACZ. By type, the board carries 17 resistors, 9 capacitors, 7 connectors, 4 ICs, 3 diodes and 2 transistors.
From the project
This is the Avalon Electrical Team GitHub Repository. This Repository contains all of the software and hardware development files for the Avalon ROV (Remote Operated Vehicle). For more information please visit our website: https://www.facebook.com/AvalonROV/
Main components on the ReleaseBoard
ReleaseBoard bill of materials (BOM)
43 components, 23 distinct parts.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | LM7809CT | TO-92_Molded_Narrow | U1 |
| 1 | LM324 | DIP-14_W7.62mm | U2 |
| 1 | LM78L05ACZ | TO-92_Molded_Narrow | U3 |
| 1 | ATTINY85-20PU | DIP-8_W7.62mm | U4 |
| 2 | Q_NMOS_GDS | TO-220-3_Vertical | Q1, Q2 |
| 1 | CONN_01X02 | WireConnection_2.00mmDrill | J1 |
| 2 | CONN_01X02 | WireConnection_1.00mmDrill | J2, J5 |
| 1 | CONN_02X03 | Pin_Header_Straight_2x03_Pitch2.54mm | J3 |
| 1 | CONN_02X04 | Pin_Header_Straight_2x04_Pitch2.54mm | J4 |
| 2 | CONN_01X02 | WireConnection_1.50mmDrill | J6, J7 |
| 1 | Fuse | Keystone20x5FuseHolder | F1 |
| 1 | 1N4841 | D_DO-35_SOD27_P7.62mm_Horizontal | D1 |
| 2 | D | D_DO-41_SOD81_P7.62mm_Horizontal | D2, D3 |
| 3 | C | C_Disc_D3.8mm_W2.6mm_P2.50mm | C1, C4, C8 |
| 3 | 10n | C_Disc_D3.0mm_W1.6mm_P2.50mm | C2, C6, C9 |
| 3 | C | CP_Radial_D5.0mm_P2.50mm | C3, C5, C7 |
| 5 | 1M | R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R1, R2, R4, R6, R9 |
| 2 | 12k | R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R3, R5 |
| 2 | 10k | R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R7, R13 |
| 1 | 4.7M | R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R8 |
Show 3 more
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | 390k | R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R10 |
| 1 | 8k | R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R12 |
| 5 | R | R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R14, R15, R16, R17, R18 |
ReleaseBoard design files
The KiCad project lives in the AvalonROV/Electrical_2018 repository on GitHub; these links point at the commit this page was built from.
ReleaseBoard: common questions
What microcontroller does the ReleaseBoard use?
The ReleaseBoard is built around the ATTINY85-20PU, from the AVR/Arduino family.
How big is the ReleaseBoard PCB?
The ReleaseBoard measures 80 × 30 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the ReleaseBoard?
43 components, from 23 distinct parts. The full bill of materials is listed on this page.
Where can I download the ReleaseBoard design files?
From the AvalonROV/Electrical_2018 repository on GitHub, which has the KiCad layout; the links under Design files point to each one.
Can I use the ReleaseBoard design in my own project?
The repository has no license, so all rights stay with AvalonROV. Use it as a reference, and ask the author before reusing the design.
Can I test firmware for the ReleaseBoard 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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