Comscicalc compute
oskarvh·ComSciCalculator·hardware/comscicalc_compute/rev1/comscicalc_compute.kicad_pcb
About the Comscicalc compute PCB
Comscicalc compute is an open source RP2040/RP2350 PCB design by oskarvh, published on GitHub. It is a 4-layer board measuring 100 × 36.8 mm, with 73 components from 46 distinct parts.
Its main chip is the RP2040, from the RP2040/RP2350 family. Other key parts include the TPS92360DCKR, FT811Q-T, USBLC6-2SC6, W25Q32JVSSIQ and TPSM863253. By type, the board carries 34 capacitors, 20 resistors, 6 ICs, 4 connectors, 3 switches and 2 crystals.
From the project
Code for the computer scientists calculator
The computer scientist calculator is a modern take on the HP 16C. It was born out of frustration of the terrible windows calculator, and since it's aimed at EE's, it also has to have hardware.
The software is in a semi-stable phase at the moment. The core of the calculator, the software/comSciCalc_lib has had the ground work made. Fluffy features such as doxygen and clang formatter has been added as well.
Main components on the Comscicalc compute
Comscicalc compute bill of materials (BOM)
73 components, 46 distinct parts — part numbers from the project's BOM.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | TPS92360DCKR | SOT65P210X110-5N | IC2 |
| 1 | FT811Q-T | QFN50P700X700X90-49N-D | IC4 |
| 1 | USBLC6-2SC6 | SOT-23-6 | U1 |
| 1 | W25Q32JVSSIQ | SOIC-8_5.23x5.23mm_P1.27mm | U2 |
| 1 | RP2040 | RP2040-QFN-56 | U3 |
| 1 | TPSM863253 | RDX0007A-MFG | U4 |
| 1 | 445I23D12M00000 | 445I23D24M00000 | Y1 |
| 1 | X1G004171001800 ECS-2520MV-120-BN-TR | X1G004171001800 | Y2 |
| 2 | CONN_02X14_ODD_EVEN TSM-110-01-L-DV-A-P-TR | TSM-110-YY-ZZZ-DV-A-P-TR | J1, J2 |
| 1 | USB4110-GF-A | USB4110GFA | J3 |
| 1 | 4-1734839-0 | 4-1734839-0 | J4 |
| 1 | ACM2012-361-2P-T002 | ACM20121022PT001 | FL1 |
| 2 | EVQ-P7J01P | EVQP7J01P | S1, S2 |
| 1 | SSSS211603 JS202011JAQN | JS202011JAQN | SW2 |
| 1 | NSR0240P2T5G | SODFL1006X40N | D1 |
| 1 | BLM21PG300SN1D Murata | R_0805_2012Metric | FB2 |
| 1 | ASPI-0403S-1R5M-T | ASPI0403S332MT | L1 |
| 2 | 22PF 100nF | C_0402_1005Metric | C1, C7 |
| 12 | 100NF 100nF | C_0402_1005Metric | C2, C4, C5, C6, C8, C21, C23, C31 +4 |
| 4 | 100NF 1uF | C_0402_1005Metric | C3, C9, C10, C11 |
Show 26 more
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 2 | 10UF 10uF | C_0805_2012Metric | C12, C25 |
| 1 | 22UF 22uF | C_0805_2012Metric | C13 |
| 1 | 1UF 1uF | C_0603_1608Metric | C14 |
| 1 | 22UF 100nF | C_0402_1005Metric | C15 |
| 1 | 22UF 1uF | C_0402_1005Metric | C16 |
| 1 | 22UF 27pF | C_0402_1005Metric | C17 |
| 1 | 100NF 27pF | C_0402_1005Metric | C18 |
| 1 | 10UF 1uF | C_0402_1005Metric | C19 |
| 2 | 4.7UF 4.7uF | C_0603_1608Metric | C20, C32 |
| 1 | 10NF 10nF | C_0402_1005Metric | C22 |
| 2 | 100nF | C_0402_1005Metric | C37, C38 |
| 2 | 22uF | C_0805_2012Metric | C39, C40 |
| 1 | DNM 1k | R_0402_1005Metric | R1 |
| 2 | DNM 10k | R_0402_1005Metric | R2, R9 |
| 1 | C174180 10k | R_0402_1005Metric | R3 |
| 1 | 10K 1k | R_0402_1005Metric | R4 |
| 1 | 27R | R_0402_1005Metric | R5 |
| 1 | 10K 27R | R_0402_1005Metric | R6 |
| 2 | C174180 0R | R_0402_1005Metric | R7, R22 |
| 1 | 10K DNM | R_0402_1005Metric | R8 |
| 1 | DNM 0R | R_0402_1005Metric | R10 |
| 2 | DNM | R_0402_1005Metric | R11, R23 |
| 2 | 5.1K 5.1k | R_0402_1005Metric | R14, R18 |
| 1 | 22R | R_0402_1005Metric | R15 |
| 2 | 1k | R_0402_1005Metric | R19, R20 |
| 2 | 10K 10k | R_0402_1005Metric | R21, R24 |
Comscicalc compute design files
The KiCad project lives in the oskarvh/ComSciCalculator repository on GitHub; these links point at the commit this page was built from.
Comscicalc compute: common questions
What microcontroller does the Comscicalc compute use?
The Comscicalc compute is built around the RP2040, from the RP2040/RP2350 family.
How big is the Comscicalc compute PCB?
The Comscicalc compute measures 100 × 36.8 mm, has 4 copper layers and is 4.69 mm thick.
How many components are on the Comscicalc compute?
73 components, from 46 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 Comscicalc compute design files?
From the oskarvh/ComSciCalculator 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 Comscicalc compute design in my own project?
The repository has no license, so all rights stay with oskarvh. Use it as a reference, and ask the author before reusing the design.
Can I test firmware for the Comscicalc compute without the hardware?
Yes. HardLabs builds a simulation of the board from its netlist and BOM, so you can run and debug RP2040/RP2350 firmware against it before you order a PCB.
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