2 layers46 × 41.4 mm
2 layers71.8 × 40.8 mm
ESP32.27
OpenMYR/ESP32-Stepper5OpenMYR ESP32 controller board, stepper driver with A5984
- Size
- 71.8 × 40.8 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 71
- Nets
- 63
- Pads
- 213
- Tracks, vias
- 562, 103
- Pours
- 6
- Routed
- Yes
- KiCad
- KiCad 5 (file 20171130)
- Created
- 19 Apr 2020
- Updated
- 21 Jun 2021
Overview
ESP32.27 is an open-source printed circuit board by OpenMYR, from the OpenMYR/ESP32-Stepper repository on GitHub. It is a 2-layer board of 71.8 × 40.8 mm with 71 parts on 63 nets, routed with 562 tracks and 103 vias.
It is built around the ESP32-S3, TPS62177DQCR and MMBT3904, with the SDR0503-100ML and TC33X-2-103E among its other parts. Its parts include 21 resistors, 12 capacitors, 8 connectors, 3 ICs and 2 diodes. It belongs with the robots and motor control boards and the ESP32 boards of this library.
Main components
5
ESP32-S3
QFN-56-EP(7x7)-40℃~+105℃ -98.4dBm 150Mbps 2.412GHz~2.484GHz 2.4GHz 21dBm 340mA 3V~3.6V 88mA SPI、USB、UART、ADC、I2C、I2S、PWM WiFi transceiver QFN-56-EP(7x7) RF Transceiver ICs ROHSEspressif SystemsRF Transceiver ICs
TPS62177DQCR
WSON-10-EP(2x3)-40℃~+125℃@(TJ) 1 1MHz 22uA 3.3V 4.75V~28V 500mA Buck Buck Built-in Fixed Yes WSON-10-EP(2x3) DC-DC Converters ROHSTexas InstrumentsDC-DC Converters
MMBT3904
SOT-23-55℃~+150℃ 1 NPN 100 100nA 200mA 200mW 300MHz 300mV 40V 6V NPN SOT-23 Bipolar (BJT) ROHSJiangsu Changjing Electronics Technology (CJ)Bipolar (BJT)SDR0503-100ML
SMD,5x4.8mm1.3A 1.6A 10uH 130mΩ ±20% SMD,5x4.8mm Power Inductors ROHSBournsPower Inductors
TC33X-2-103E
SMD-3P,3.8x3.6mm1 10kΩ 150mW ±25% ±250ppm/℃ SMD-3P,3.8x3.6mm Potentiometers, Variable Resistors ROHSBournsPotentiometers & Variable Resistors
README
README.mdESP32-Stepper
OpenMYR ESP32 controller board, stepper driver with A5984
Use with ESP32-Motors or write your own firmware.
Parts
71| Qty | Value | Footprint | References |
|---|---|---|---|
| 8 | 10k | ESP32.27:R0603 | R1, R2, R13, R14, R15, R18, R19, R21 |
| 7 | DNP | ESP32.27:R0603 | R3, R4, R7, R8, R10, R12, R17 |
| 5 | 0 | ESP32.27:R0603 | R5, R6, R9, R11, R16 |
| 5 | 0.1uF | ESP32.27:C0603K | C1, C3, C9, C10, C11 |
| 4 | MountingHole | Mounting_Holes:MountingHole_3.7mm | MH1, MH2, MH3, MH4 |
| 3 | 1X2-3.5MM | ESP32.27:1X2-3.5MM | J1, J31, J32 |
| 3 | FIDUCIAL | Fiducial:Fiducial_1mm_Dia_2.54mm_Outer_CopperTop | FD1, FD2, FD3 |
| 3 | PINHD-1X3 | ESP32.27:1X03 | JP1, JP3, JP4 |
| 3 | TestPoint | ESP32.27:B1,27 | TP1, TP2, TP3 |
| 2 | 0.1 | ESP32.27:M0805 | S1, S2 |
| 2 | 1X4-BIG | ESP32.27:1X04-BIG | J4, JP2 |
| 2 | Conn_01x02 | Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_Vertical | J2, J6 |
| 2 | DNP | ESP32.27:CHIPLED_0603 | LED1, LED2 |
| 2 | MMBT3904 | ESP32.27:SOT23 | Q1, Q2 |
| 2 | OSHW-LOGOMINI | ESP32.27:OSHW-LOGO-MINI | LOGO1, LOGO1 |
| 2 | SJ | ESP32.27:SJ | SJ1, SJ3 |
| 1 | ESP32.27:SJ | SJ2 | |
| 1 | 0.47uF | ESP32.27:C0603K | C8 |
| 1 | 100 uF | Capacitor_THT:CP_Radial_D5.0mm_P2.50mm | C4 |
| 1 | 10uF | ESP32.27:C0603K | C2 |
| 1 | 4.7uF | ESP32.27:C0805 | C7 |
| 1 | A5984 | ESP32.27:QFN-24 | U2 |
| 1 | Conn_02x06_Odd_Even | Connector_PinHeader_2.54mm:PinHeader_2x06_P2.54mm_Vertical | J5 |
| 1 | DNP | Capacitor_SMD:C_0603_1608Metric | C12 |
| 1 | ESP-32S | ESP32-footprints-Lib:ESP32-WROOM | U1 |
| 1 | GRM188R61C225KE15D | ESP32.27:0603 | C5 |
| 1 | GRM21BR60J226ME39L | ESP32.27:0805 | C6 |
| 1 | LOGO-3.1_Color | OpenMYR_Lib:LOGO-3.1_Color | G*** |
| 1 | LOGO-3.1_Silk | OpenMYR_Lib:LOGO-3.1_Silk | G*** |
| 1 | SDR0503-100ML | ESP32.27:SDR0503 | L1 |
| 1 | TC33X-2-103E | ESP32.27:35WR | R20 |
| 1 | TPS62177DQCR | ESP32.27:R-PWSON-N10 | U3 |
Questions
How big is the ESP32.27 PCB?
It measures 71.8 × 40.8 mm and has 2 copper layers, 1.6 mm thick.
What parts does the ESP32.27 use?
71 parts, built around the ESP32-S3, TPS62177DQCR, MMBT3904 and SDR0503-100ML. 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 ESP32.27 KiCad files?
From the OpenMYR/ESP32-Stepper repository on GitHub, at the commit this page was made from: the board is ESP32.27.kicad_pcb. PCBKit opens the board in the browser, with nothing to install.
Can I use the ESP32.27 design in my own project?
Its repository states no licence, so its author keeps all rights: ask OpenMYR before reusing the design.
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