2 layers196.7 × 31.5 mm
2 layers51.5 × 44 mm
Espled
Matir/hacks18Miscellaneous Hacks
- Size
- 51.5 × 44 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 32
- Nets
- 54
- Pads
- 131
- Tracks, vias
- 149, 29
- Pours
- 2
- Routed
- Yes
- KiCad
- KiCad 5 (file 20171130)
- Created
- 19 Oct 2019
- Updated
- 22 Oct 2026
Overview
Espled is an open-source printed circuit board by Matir, from the Matir/hacks repository on GitHub, published under the BSD-2-Clause licence. It is a 2-layer board of 51.5 × 44 mm with 32 parts on 54 nets, routed with 149 tracks and 29 vias.
It is built around the 74HCT245, ESP32-WROOM-32 and AP2112K-3.3. Its parts include 11 capacitors, 8 resistors, 6 connectors, 3 ICs and 2 diodes. It belongs with the ESP32 boards of this library.
Main components
3
74HCT245
DIP-20-40℃~+85℃ 28ns@4.5V 4.5V~5.5V 6mA 6mA 74HCT 8 8uA Bidirectional TTL-compatible CMOS Tri-State DIP-20 Buffers, Drivers, Receivers, Transceivers ROHSWuxi I-core Elec74 Series
ESP32-WROOM-32
SMD,18x25.5mm-40℃~+85℃ -98dBm 2.4GHz 2.7V~3.6V 20dBm Bluetooth4.2 ESP32-DOWDQ6 UART、SDIO、SPI、I2C、GPIO、PWM、ADC、DAC SMD,25.5x18mm WiFi Modules ROHSEspressif SystemsWiFi Modules
AP2112K-3.3
SOT253.3V 600mA CMOS Low Dropout Linear Regulator with EnableDiodes IncorporatedUncategorised
Parts
32| Qty | Value | Footprint | References |
|---|---|---|---|
| 4 | 0.1u | Capacitor_SMD:C_0603_1608Metric | C1, C2, C7, C11 |
| 4 | 10u | Capacitor_SMD:C_0805_2012Metric | C3, C4, C6, C8 |
| 4 | 1k | Resistor_SMD:R_0603_1608Metric | R1, R2, R4, R5 |
| 3 | 1u | Capacitor_SMD:C_0603_1608Metric | C5, C9, C10 |
| 3 | 330 | Resistor_SMD:R_0603_1608Metric | R6, R7, R8 |
| 3 | Screw_Terminal_01x03 | TerminalBlock_Phoenix:TerminalBlock_Phoenix_PT-1,5-3-5.0-H_1x03_P5.00mm_Horizontal | J3, J4, J5 |
| 2 | LED | LED_SMD:LED_0603_1608Metric_Castellated | D1, D2 |
| 2 | SW_Push | Button_Switch_SMD:SW_SPST_SKQG_WithStem | SW1, SW2 |
| 1 | 10k | Resistor_SMD:R_0603_1608Metric | R3 |
| 1 | 74HCT245 | Package_SO:TSSOP-20_4.4x6.5mm_P0.65mm | U3 |
| 1 | AP2112K-3.3 | Package_TO_SOT_SMD:SOT-23-5 | U1 |
| 1 | Barrel_Jack_Switch | Connector_BarrelJack:BarrelJack_Horizontal | J2 |
| 1 | Conn_01x03 | Connector_PinHeader_2.54mm:PinHeader_1x03_P2.54mm_Horizontal | J7 |
| 1 | ESP32-WROOM-32 | RF_Module:ESP32-WROOM-32 | U2 |
| 1 | Screw_Terminal_01x02 | TerminalBlock_Phoenix:TerminalBlock_Phoenix_PT-1,5-2-5.0-H_1x02_P5.00mm_Horizontal | J1 |
Questions
How big is the Espled PCB?
It measures 51.5 × 44 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Espled use?
32 parts, built around the 74HCT245, ESP32-WROOM-32 and AP2112K-3.3. 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 Espled KiCad files?
From the Matir/hacks repository on GitHub, at the commit this page was made from: the board is pcbs/espled/espled.kicad_pcb and its schematic electronics/wiretest/wiretest/wiretest.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Espled design in my own project?
Its repository publishes it under the BSD-2-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).
More from Matir/hacks
8- 2 layers80 × 80 mm
- 2 layers44.3 × 48.8 mm
- 2 layers46 × 42 mm
- 2 layers55 × 96 mm
- 2 layers23.5 × 56.5 mm
- 2 layers19.5 × 17.5 mm
- 2 layers32.2 × 28.2 mm
Similar boards
- 2 layers95.2 × 154.5 mm
- 4 layers100 × 100 mm
- 2 layers27 × 40.3 mm
Panasonic aircon
jnicolson/panasonic_ac_wifi
Module to interface with the CN-CNT port on Panasonic airconditioner units
26 parts28CC-BY-4.0 - 4 layers20.3 × 40 mm
- 2 layers68 × 81.5 mm
- 2 layers137.5 × 51 mm
- 2 layers65 × 75 mm
Youverse hardware
wyyyrdx/Youverse
Youverse is a behavioral simulation platform that explores how your current habits and environment can influence different possible versions of your future self.
13 parts3MIT - 2 layers33 × 39 mm
SMA Haptic v2 2
ansue1234/SML_SMA_Haptics
This repository contains all the code necessary for the two demostration for the SMA Haptics project--Painting Alignment and Object Detection.
22 parts2