Paradox
About the Paradox PCB
Paradox is an open source AVR/Arduino PCB design by odeliy, published on GitHub. It is a 2-layer board measuring 38 × 110 mm, with 114 components from 81 distinct parts.
Its main chip is the ATTINY45, from the AVR/Arduino family. Other key parts include the MCP6002, TL071 and LM13700. By type, the board carries 58 resistors, 24 capacitors, 10 connectors, 6 ICs, 4 transistors and 2 diodes.
Main components on the Paradox
Paradox bill of materials (BOM)
114 components, 81 distinct parts — part numbers from the project's BOM.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | ATTINY45 TL072 | SOIC-8_3.9x4.9mm_P1.27mm | U1 |
| 1 | MCP6002 LM13700 | SOIC-16_3.9x9.9mm_P1.27mm | U2 |
| 1 | TL071 TL074 | TSSOP-14_4.4x5mm_P0.65mm | U3 |
| 1 | LM13700 | SOIC-16_3.9x9.9mm_P1.27mm | U4 |
| 1 | TL071 TL072 | SOIC-8_3.9x4.9mm_P1.27mm | U5 |
| 1 | LM13700 TL074 | TSSOP-14_4.4x5mm_P0.65mm | U6 |
| 2 | C20526 BC847BPN | SOT-363_SC-70-6 | Q1, Q2 |
| 2 | C20526 MMBFJ112 | SOT-23 | Q3, Q4 |
| 1 | LINKED | AudioJack_QuPing_Pushfit | J1 |
| 1 | 1V_A | AudioJack_QuPing_Pushfit | J2 |
| 1 | exFM | AudioJack_QuPing_Pushfit | J3 |
| 1 | exSYNC | AudioJack_QuPing_Pushfit | J4 |
| 1 | 1V_B | AudioJack_QuPing_Pushfit | J5 |
| 1 | TRI_A | AudioJack_QuPing_Pushfit | J7 |
| 1 | MIX | AudioJack_QuPing_Pushfit | J8 |
| 1 | SQR | AudioJack_QuPing_Pushfit | J9 |
| 1 | PWM | AudioJack_QuPing_Pushfit | J10 |
| 1 | SAW | AudioJack_QuPing_Pushfit | J11 |
| 4 | 100KB | POT_9mm_P0915N | RV1, RV3, RV4, RV6 |
| 2 | 100KB | POT_9mm_Tall-Trimmer | RV2, RV5 |
Show 61 more
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 2 | 20KT | TRIM_3296W | RV7, RV8 |
| 1 | 100KT | TRIM_3296W | RV9 |
| 1 | SW_SPDT | SW_SPDT_1M-Series_PC-Thru-Hole | SW1 |
| 1 | SCH | D_SOD-123 | D1 |
| 1 | C2128 SCH | D_SOD-123 | D2 |
| 2 | C14663 10uF | C_1206_3216Metric | C1, C2 |
| 1 | C57112 100nF | C_0402_1005Metric | C3 |
| 2 | 1UF 100nF | C_0402_1005Metric | C4, C10 |
| 1 | 100UF 100nF | C_0402_1005Metric | C5 |
| 1 | C1623 100nF | C_0402_1005Metric | C6 |
| 1 | 10UF 100nF | C_0402_1005Metric | C7 |
| 1 | 100PF 100nF | C_0402_1005Metric | C8 |
| 4 | C14663 100nF | C_0402_1005Metric | C9, C20, C21, C22 |
| 1 | 10UF 220nF | C_0603_1608Metric | C11 |
| 1 | C57112 220nF | C_0603_1608Metric | C12 |
| 1 | 100UF 220nF | C_0603_1608Metric | C13 |
| 1 | 100UF 3.3nF | C_0603_1608Metric | C14 |
| 1 | C14663 3.3nF | C_0603_1608Metric | C15 |
| 1 | C14663 4.7pF | C_0603_1608Metric | C16 |
| 1 | C14663 470pF | C_0603_1608Metric | C17 |
| 1 | C14663 47pF | C_0603_1608Metric | C18 |
| 1 | 100nF | C_0402_1005Metric | C19 |
| 1 | 470pF | C_0603_1608Metric | C24 |
| 1 | C1622 47pF | C_0603_1608Metric | C25 |
| 4 | 100K 10K | R_0603_1608Metric | R1, R2, R21, R36 |
| 3 | 100K | R_0603_1608Metric | R3, R26, R54 |
| 2 | 10K | R_0603_1608Metric | R4, R35 |
| 5 | 10K 100K | R_0603_1608Metric | R5, R6, R9, R50, R51 |
| 2 | 22K 220K | R_0603_1608Metric | R7, R34 |
| 1 | 10K 10M | R_0603_1608Metric | R8 |
| 6 | 100K | R_0603_1608Metric | R10, R22, R42, R43, R47, R52 |
| 1 | 510R 220K | R_0603_1608Metric | R11 |
| 1 | 100K 10M | R_0603_1608Metric | R12 |
| 1 | 390R 12K | R_0603_1608Metric | R13 |
| 1 | 22K 91K | R_0603_1608Metric | R14 |
| 1 | 220K 91K | R_0603_1608Metric | R15 |
| 1 | 10K 1K | R_0603_1608Metric | R16 |
| 1 | 56K | R_0603_1608Metric | R17 |
| 1 | 20K 56K | R_0603_1608Metric | R18 |
| 1 | 10K 1K$ | R_THT_0.125W_TypeB | R19 |
| 1 | 100K 1K$ | R_THT_0.125W_TypeB | R20 |
| 1 | 10K 680K | R_0603_1608Metric | R23 |
| 1 | 100K 680K | R_0603_1608Metric | R24 |
| 2 | 100K 47K | R_0603_1608Metric | R25, R39 |
| 1 | 22K 5.6K | R_0603_1608Metric | R27 |
| 1 | 100K 5.6K | R_0603_1608Metric | R28 |
| 2 | 10K 15K | R_0603_1608Metric | R29, R30 |
| 2 | 10K 680R | R_0603_1608Metric | R31, R32 |
| 1 | 10K 390K | R_0603_1608Metric | R33 |
| 2 | 220K 100K | R_0603_1608Metric | R37, R46 |
| 1 | 5.1M 1K | R_0603_1608Metric | R38 |
| 1 | 1.8K 47K | R_0603_1608Metric | R40 |
| 1 | 10K | R_0603_1608Metric | R41 |
| 1 | 22K 10M | R_0603_1608Metric | R44 |
| 2 | 1K | R_0603_1608Metric | R45, R56 |
| 1 | 12K | R_0603_1608Metric | R48 |
| 1 | 10M | R_0603_1608Metric | R49 |
| 1 | 470K | R_0603_1608Metric | R53 |
| 1 | 470K 1K | R_0603_1608Metric | R55 |
| 1 | 2K | R_0603_1608Metric | R57 |
| 1 | 2.4K | R_0603_1608Metric | R58 |
Paradox design files
The KiCad project lives in the odeliy/noise-reap repository on GitHub; these links point at the commit this page was built from.
Paradox: common questions
What microcontroller does the Paradox use?
The Paradox is built around the ATTINY45, from the AVR/Arduino family.
How big is the Paradox PCB?
The Paradox measures 38 × 110 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the Paradox?
114 components, from 81 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 Paradox design files?
From the odeliy/noise-reap 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 Paradox design in my own project?
The repository has no license, so all rights stay with odeliy. Use it as a reference, and ask the author before reusing the design.
Can I test firmware for the Paradox 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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