2 layers87 × 72 mm
2 layers87 × 72 mm
Easyprb
KrogeChen/easyprintfeasy printf debug box for small mcu
- Size
- 87 × 72 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 104
- Nets
- 118
- Pads
- 383
- Tracks, vias
- 1,214, 158
- Pours
- 7
- Routed
- Yes
- KiCad
- KiCad 5 (file 20171130)
- Created
- 11 Sep 2022
- Updated
- 17 Oct 2022
Overview
Easyprb is an open-source printed circuit board by KrogeChen, from the KrogeChen/easyprintf repository on GitHub, published under the GPL-3.0 licence. It is a 2-layer board of 87 × 72 mm with 104 parts on 118 nets, routed with 1,214 tracks and 158 vias.
It is built around the CH340E, RS485 and W25Q128JVSIQ, with the SP3485EN-Y, 74LVC1G86Z and AMS1117-3.3 among its other parts. Its parts include 36 resistors, 31 capacitors, 13 ICs, 12 diodes and 9 connectors.
Main components
8
CH340E
MSOP-10150uA 20mA 2Mbps 3.3V、5V Transceiver USB 2.0 MSOP-10 USB Converters ROHSWCH (Nanjing Qinheng Microelectronics)USB Converters
RS485
SOP-81 1 1.2mA 2.5Mbps 256 5V Half-Duplex Transceiver ±4kV SOP-8 RS-485 / RS-422 ICs ROHSGRRS-485 / RS-422 ICs
W25Q128JVSIQ
SOIC-8-208mil-40℃~+85℃ 100,000 cycles 120ms@(32KB) 128Mbit 133MHz 1uA 2.7V~3.6V 20 Years 3ms Power-on reset、Hardware write protection、Software write protection、Write enable latch、Absolute write protection SPI SOIC-8-208mil NOR FLASH ROHSWinbondNOR FLASH
SP3485EN-Y
SOP-8SOP-8 RS-485 / RS-422 ICs ROHSYLPTECRS-485 / RS-422 ICs
74LVC1G86Z
SOT-553-5-40℃~+125℃ 1 1.65V~5.5V 1.7V~2V 10uA 2 32mA 32mA 5.5ns@5V,50pF 700mV~800mV 74LVC Series XOR Gate SOT-553-5 Logic Gates ROHSDiodes IncorporatedLogic Gates
AMS1117-3.3
SOT-223-40℃~+125℃ 0.003%Vout 1 1.1V@(800mA) 15V 1A 3.3V 5mA 72dB@(120Hz) Fixed Over Current Protection、Short Circuit Protection、Thermal shutdown Positive SOT-223 Voltage Regulators - Linear, Low Drop Out (LDO) Regulators ROHSAdvanced Monolithic SystemsVoltage Regulators - Linear, Low Drop Out (LDO) Regulators
SS14
SMA(DO-214AC)-55℃~+150℃ 1A 25A 300uA@40V 40V 550mV@1A Independent SMA(DO-214AC) Schottky Diodes ROHSMDDSchottky Diodes
S8050
SOT-23-55℃~+150℃ 1 NPN 100MHz 100nA 120 25V 300mW 500mA 5V 600mV NPN SOT-23 Bipolar (BJT) ROHShongjiachengBipolar (BJT)
README
README.mdeasyprintf
easy printf debug box for small mcu
Parts
104| Qty | Value | Footprint | References |
|---|---|---|---|
| 17 | 100nF | kicad_footprint_general:C_0603_1608Metric | C12, C13, C17, C19, C22, C25, C27, C29, C30, C40, C50, C51, C60, C61, C62, C102 +1 |
| 8 | 10R | kicad_footprint_general:R_1206_3216Metric | R30, R31, R41, R46, R50, R51, R55, R56 |
| 8 | 10k | kicad_footprint_general:R_0603_1608Metric | R11, R12, R13, R14, R43, R52, R54, R58 |
| 8 | 2.7k | kicad_footprint_general:R_0603_1608Metric | R15, R20, R21, R38, R40, R47, R57, R59 |
| 5 | 1uF | kicad_footprint_general:C_0603_1608Metric | C14, C21, C24, C26, C28 |
| 5 | 4.7k | kicad_footprint_general:R_0603_1608Metric | R32, R34, R35, R36, R37 |
| 4 | SP3485EN | kicad_footprint_general:SOIC-8_3.9x4.9mm_P1.27mm | U30, U40, U50, U51 |
| 4 | W25Q128JVS | kicad_footprint_general:SOIC-8_5.23x5.23mm_P1.27mm | U60, U61, U62, U63 |
| 3 | 4.7uF | kicad_footprint_general:C_0603_1608Metric | C16, C18, C101 |
| 3 | GREEN | kicad_footprint_general:LED_0603_1608Metric | D30, D40, D50 |
| 3 | RED | kicad_footprint_general:LED_0603_1608Metric | D10, D22, D23 |
| 3 | SS14 | kicad_footprint_general:D_SMA | D20, D21, D24 |
| 2 | 100R | kicad_footprint_general:R_0603_1608Metric | R10, R44 |
| 2 | 220uF | kicad_footprint_general:CP_Elec_6.3x5.4 | C20, C23 |
| 2 | 9pF | kicad_footprint_general:C_0603_1608Metric | C10, C11 |
| 2 | CH340E | kicad_footprint_general:MSOP-10_3x3mm_P0.5mm | U21, U22 |
| 1 | 10nF | kicad_footprint_general:C_0603_1608Metric | C41 |
| 1 | 10uF | kicad_footprint_general:C_0805_2012Metric | C15 |
| 1 | 16M | kicad_footprint_general:Crystal_SMD_3225-4Pin_3.2x2.5mm | Y10 |
| 1 | 180R | kicad_footprint_general:R_1206_3216Metric | R45 |
| 1 | 1N4148 | kicad_footprint_general:D_SOD-323F | D52 |
| 1 | 2N7002 | kicad_footprint_general:SOT-23 | Q40 |
| 1 | 470R | kicad_footprint_general:R_0805_2012Metric | R33 |
| 1 | 51R | kicad_footprint_general:R_0603_1608Metric | R48 |
| 1 | 6.8k | kicad_footprint_general:R_0603_1608Metric | R42 |
| 1 | 74LVC1G86 | kicad_footprint_general:SOT-23-5 | U31 |
| 1 | AMS1117-3.3 | kicad_footprint_general:SOT-223 | U20 |
| 1 | BLUE | kicad_footprint_general:LED_0603_1608Metric | D51 |
| 1 | CMD | kicad_footprint_general:USB_C_Receptacle_14Pin | J21 |
| 1 | DBG | kicad_footprint_general:PinHeader_1x05_P1.50mm_Vertical | J10 |
| 1 | EPF | kicad_footprint_general:PhoenixContact_MCV_1,5_3-G-3.81_1x03_P3.81mm_Vertical | J41 |
| 1 | EPO | kicad_footprint_general:PinHeader_1x03_P2.54mm_Vertical | J40 |
| 1 | HC32L136K8TA_LQFP64 | kicad_footprint_general:LQFP-64_10x10mm_P0.5mm | U10 |
| 1 | NP | kicad_footprint_general:R_0805_2012Metric | R53 |
| 1 | PWU | kicad_footprint_general:PhoenixContact_MCV_1,5_2-G-3.81_1x02_P3.81mm_Vertical | J23 |
| 1 | RED | kicad_footprint_general:LED_4014 | D41 |
| 1 | RLTC | kicad_footprint_general:USB_C_Receptacle_14Pin | J20 |
| 1 | RS485 | kicad_footprint_general:PhoenixContact_MCV_1,5_3-G-3.81_1x03_P3.81mm_Vertical | J30 |
| 1 | S8050 | kicad_footprint_general:SOT-23 | Q30 |
| 1 | TO RS | kicad_footprint_general:PhoenixContact_MCV_1,5_3-G-3.81_1x03_P3.81mm_Vertical | J50 |
| 1 | UF RS485 | kicad_footprint_general:PhoenixContact_MCV_1,5_3-G-3.81_1x03_P3.81mm_Vertical | J51 |
Questions
How big is the Easyprb PCB?
It measures 87 × 72 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Easyprb use?
104 parts, built around the CH340E, RS485, W25Q128JVSIQ and SP3485EN-Y. 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 Easyprb KiCad files?
From the KrogeChen/easyprintf repository on GitHub, at the commit this page was made from: the board is hard/easyprb/easyprb.kicad_pcb. PCBKit opens the board in the browser, with nothing to install.
Can I use the Easyprb design in my own project?
Its repository publishes it under the GPL-3.0 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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