4 layers100 × 100 mm
4 layers99.6 × 70 mm
Pcroast
zoftko/pcrapPrinted circuit board designs (KiCad)
- Size
- 99.6 × 70 mm
- Copper layers
- 4
- Thickness
- 1.6 mm
- Parts
- 45
- Nets
- 54
- Pads
- 206
- Tracks, vias
- 248, 12
- Pours
- 1
- Routed
- Yes
- KiCad
- KiCad 7 (file 20221018)
- Created
- 2 Apr 2023
- Updated
- 22 Apr 2024
Overview
Pcroast is an open-source printed circuit board by zoftko, from the zoftko/pcrap repository on GitHub, published under the BSD-3-Clause licence. It is a 4-layer board of 99.6 × 70 mm with 45 parts on 54 nets, routed with 248 tracks and 12 vias.
It is built around the MAX6675ISA+, LM393 and IRLML2502, with the 1N5819WS and FDN340P among its other parts. Its parts include 14 resistors, 7 connectors, 5 capacitors, 5 diodes and 5 transistors. It belongs with the RP2040 boards of this library.
Main components
5
MAX6675ISA+
SOIC-8-20℃~+85℃ 3V~5.5V SPI SOIC-8 Interface - Specialized ROHSMaxim Integrated (Analog Devices)Interface - Specialized
LM393
SOP-8-16V~16V 0℃~+70℃ 2 2.5mA 250nA 2V~36V 36V 5mV 5nA Fail-safe function Open-drain SOP-8 Comparators ROHSMSKSEMIComparators
IRLML2502
SOT-23-40℃~+150℃ 1 N-channel 1.25W 20V 4.2A 50mΩ@2.5V 600mV 66pF 740pF 8nC@10V SOT-23 MOSFETs ROHSGuangdong HottechMOSFETs
1N5819WS
SOD-3231 Independent 1A 25A 40V 500uA@40V 600mV@1A SOD-323 Schottky Diodes ROHSGuangdong HottechSchottky DiodesFDN340P
SOT-23-55℃~+150℃ 1 P-Channel 1.5V 121pF 20V 2A 500mW 56pF 7.2nC@4.5V 70mΩ@4.5V 779pF P-Channel SOT-23 MOSFETs ROHSonsemiMOSFETs
README
cocoro/README.mdtitle: Heart shaped RGB LED Array brief: This board includes a heart shaped RGB LED array and the components to control said array through a simple user interface.
cocoro
The idea behind this board is to function as a night light. It uses an STM8s MCU to control different characteristics such as color or brightness. The user interface consists of a rotary encoder and a small I2C OLED display, based on the SD1306 controller.
Warnings
The P Channel Mosfets (FDN340P) placement to turn on the LEDs (high side switch) is wrong. Pin assignment is wrong. For example, the PCB layout marks the source as being the gate. The part needs to be rotated 90° to the left for pins to be properly placed.
Parts
45| Qty | Value | Footprint | References |
|---|---|---|---|
| 4 | 1k | Resistor_SMD:R_0603_1608Metric | R3, R8, R13, R14 |
| 4 | IRLML2502 | Package_TO_SOT_SMD:SOT-23 | Q1, Q3, Q4, Q5 |
| 4 | LED | LED_SMD:LED_0603_1608Metric | D1, D3, D4, D5 |
| 3 | 0.1u | Capacitor_SMD:C_0805_2012Metric | C1, C4, C5 |
| 3 | 10k | Resistor_SMD:R_0603_1608Metric | R10, R11, R12 |
| 3 | SW_Push | Button_Switch_SMD:SW_SPST_PTS810 | SW1, SW2, SW3 |
| 3 | Screw_Terminal_01x02 | pcrap:KF7.62 | J1, J3, J5 |
| 2 | 1u | Capacitor_SMD:C_1206_3216Metric | C2, C3 |
| 2 | 220k | Resistor_SMD:R_0603_1608Metric | R5, R6 |
| 1 | 10MEG | Resistor_SMD:R_0603_1608Metric | R9 |
| 1 | 15k | Resistor_SMD:R_0603_1608Metric | R7 |
| 1 | 1N5819WS | Diode_SMD:D_SOD-123 | D2 |
| 1 | 2.7k | Resistor_SMD:R_0603_1608Metric | R2 |
| 1 | 220@100MHz | Inductor_SMD:L_0603_1608Metric | FB1 |
| 1 | 6.8k | Resistor_SMD:R_0603_1608Metric | R4 |
| 1 | 8.2k | Resistor_SMD:R_0603_1608Metric | R1 |
| 1 | Barrel_Jack_Switch | Connector_BarrelJack:BarrelJack_Wuerth_6941xx301002 | J2 |
| 1 | Buzzer | Buzzer_Beeper:Buzzer_12x9.5RM7.6 | BZ1 |
| 1 | Conn_01x02_Pin | Connector_PinSocket_2.54mm:PinSocket_1x02_P2.54mm_Vertical | J6 |
| 1 | Conn_01x03_Pin | Connector_PinSocket_2.54mm:PinSocket_1x03_P2.54mm_Vertical | J7 |
| 1 | Conn_01x08_Pin | Connector_PinSocket_2.54mm:PinSocket_1x08_P2.54mm_Vertical | J4 |
| 1 | FDN340P | Package_TO_SOT_SMD:SOT-23 | Q2 |
| 1 | LM393 | Package_SO:SOIC-8_3.9x4.9mm_P1.27mm | U2 |
| 1 | MAX6675 | Package_SO:SOIC-8_3.9x4.9mm_P1.27mm | U1 |
| 1 | PicoW | pcrap:RPi_PicoW_SMD_TH | U3 |
| 1 | V55MLA0603LNR | Resistor_SMD:R_0603_1608Metric | RV1 |
Questions
How big is the Pcroast PCB?
It measures 99.6 × 70 mm and has 4 copper layers, 1.6 mm thick.
What parts does the Pcroast use?
45 parts, built around the MAX6675ISA+, LM393, IRLML2502 and 1N5819WS. The full list of its parts is on this page, with links to each part's symbol and footprint where PCBKit's library has them.
Where can I download the Pcroast KiCad files?
From the zoftko/pcrap repository on GitHub, at the commit this page was made from: the board is pcroast/pcroast.kicad_pcb and its schematic cocoro/cocoro.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Pcroast design in my own project?
Its repository publishes it under the BSD-3-Clause licence: you may reuse it on that licence's terms (keep the author's notice, and for a copyleft licence share your changes alike).
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