Red-Crab
About the Red-Crab PCB
Red-Crab is an open source PCB design by aitesam961, published on GitHub under the GPL-3.0 license. It is a 4-layer board measuring 90.8 × 45.5 mm, with 77 components from 43 distinct parts.
Other key parts include the TPS5430DDA, TPS65131RGET, LM324ADR and LM741. By type, the board carries 28 resistors, 19 capacitors, 6 ICs, 6 diodes, 4 connectors and 3 transistors.
From the project
A Modular PID Controller with wide tuning range
The idea of this project is to use a modular approach where different ad-ons could be used with the Basic PID controller board for controlling applications. Add-on Boards will be designed next added to the repository. (OSHW Community can contribute in designing add-ons).
Note: I am not affiliated with PCBWay. However, I just like their service and build quality.
Main components on the Red-Crab
Red-Crab bill of materials (BOM)
77 components, 43 distinct parts — part numbers from the project's BOM.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | TPS5430DDA | TI_SO-PowerPAD-8_ThermalVias | U101 |
| 1 | TPS65131RGET TPS65131RGER | QFN-24-1EP_4x4mm_P0.5mm_EP2.6x2.6mm | U102 |
| 1 | LM324ADR Texas Instruments | SOIC-14_W3.9mm | U201 |
| 3 | LM741 | SOP-8_3.76x4.96mm_P1.27mm | U202, U203, U204 |
| 2 | AO3401A | SOT-23 | Q101, Q102 |
| 1 | FDV301N ON Semiconductor | SOT-23-3 | Q201 |
| 1 | Barrel_Jack_Switch | BarrelJack_GCT_DCJ200-10-A_Horizontal | J101 |
| 2 | OSTTC080162 On Shore Technology Inc. | PinHeader_1x08_P1.27mm_Vertical_SMD_Pin1Left | J301, J302 |
| 1 | Screw_Terminal_01x06 | Stocko_MKS_1656-6-0-606_1x6_P2.50mm_Vertical | J303 |
| 1 | 500mA | Fuse_1812_4532Metric | F101 |
| 4 | 50k | Potentiometer_Bourns_3214X_Vertical | RV201, RV202, RV203, RV205 |
| 2 | 100k | Potentiometer_Bourns_3214X_Vertical | RV204, RV206 |
| 1 | SW_DIP_x06 | SW_DIP_SPSTx08_Slide_6.7x21.88mm_W8.61mm_P2.54mm_LowProfile | SW201 |
| 3 | B5819W | D_SOD-123 | D101, D105, D106 |
| 1 | GREEN | LED_0805_2012Metric | D102 |
| 1 | RED | LED_0805_2012Metric | D103 |
| 1 | YELLOW | LED_0805_2012Metric | D104 |
| 1 | 47u | L_Sunlord_MWSA0518_5.4x5.2mm | L101 |
| 2 | 10u | L_Sunlord_MWSA0518_5.4x5.2mm | L102, L103 |
| 2 | 10n | C_0603_1608Metric | C101, C109 |
Show 23 more
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | 22uF/25V | CP_Elec_6.3x5.3 | C102 |
| 5 | 10u | C_1206_3216Metric | C103, C105, C106, C113, C203 |
| 2 | 220u | CP_Elec_6.3x7.7 | C104, C204 |
| 1 | 6p8 | C_0603_1608Metric | C107 |
| 2 | 22u | C_0805_2012Metric | C108, C115 |
| 1 | 220n | C_0603_1608Metric | C110 |
| 1 | 4n7 | C_0603_1608Metric | C111 |
| 1 | 8p2 | C_0603_1608Metric | C112 |
| 1 | 100n | C_0603_1608Metric | C114 |
| 2 | 1u | C_1206_3216Metric | C201, C202 |
| 3 | 100k | R_0603_1608Metric | R101, R104, R113 |
| 2 | 10k | R_0603_1608Metric | R103, R203 |
| 1 | 3k3 | R_0603_1608Metric | R105 |
| 1 | 5k1 | R_0603_1608Metric | R106 |
| 1 | 4k3 | R_0603_1608Metric | R107 |
| 1 | 1k5 | R_0603_1608Metric | R108 |
| 2 | 1M | R_0603_1608Metric | R110, R115 |
| 2 | 12k | R_0603_1608Metric | R111, R117 |
| 1 | 110k | R_0603_1608Metric | R112 |
| 1 | 100 | R_0603_1608Metric | R116 |
| 10 | 1k | R_0402_1005Metric | R201, R202, R204, R205, R206, R207, R208, R210 +2 |
| 2 | 6k | R_0402_1005Metric | R209, R211 |
| 1 | 100 | R_0402_1005Metric | R213 |
Red-Crab design files
The KiCad project lives in the aitesam961/Red-Crab repository on GitHub; these links point at the commit this page was built from.
Red-Crab: common questions
How big is the Red-Crab PCB?
The Red-Crab measures 90.8 × 45.5 mm, has 4 copper layers and is 1.06 mm thick.
How many components are on the Red-Crab?
77 components, from 43 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 Red-Crab design files?
From the aitesam961/Red-Crab 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 Red-Crab design in my own project?
Yes, under the terms of its GPL-3.0 license, which aitesam961 chose for the repository.
