ESP32-EVB Rev F Reference Design Schematic
Schematic for the Olimex ESP32-EVB, an ESP32-WROOM-32 based development board featuring Ethernet, CAN bus, two relays, IR, LiPo charging, and a microSD slot.
Overview
This design document provides the complete schematic for the Olimex ESP32-EVB Revision F development board. Built around the Espressif Systems ESP-WROOM-32 module, the design includes a 10/100 Ethernet interface via a Microchip LAN8710A PHY and a CAN bus interface using the MCP2562 transceiver. It features industrial-ready peripherals including two Relpol RAS-0515 relays, a microSD card slot, and infrared transmit/receive capabilities. Power management is handled by a Silergy SY8089AAAC buck converter and a Microchip MCP73833 LiPo battery charger with a dedicated power path. The board also includes a CH340T USB-to-UART bridge for programming and debugging.
Use Cases
- Industrial automation and control
- IoT gateway development
- Remote monitoring and data logging
- Smart home infrastructure
- Ethernet-to-CAN bridge applications
- Battery-powered wireless sensors
Topics
Referenced Parts
ESP-WROOM-32
Espressif Systems
ESP-WROOM-32 MODULE
1N5819S4
General Semiconductor
1N5819S4(SOD-123)
MCP73833
Microchip
MCP73833(MSOP10)
BC817-40
NXP
BC817-40(SOT23)
SY8089AAAC
Silergy
SY8089AAAC(SOT23-5)
CH340T
WCH
CH340T(SSOP20W)
WPM2015-3
Willsemi
WPM2015-3/TR
DG306-5.0-2P
Degson
TB2 DG306-5.0-2P
DG306-5.0-3P
Degson
TB3 DG306-5.0-3P
RAS-0515
Relpol
RAS-0515
SS34
SMC Diode Solutions
1N5822/SS34/SMA
BH10S
Hirose
UEXT1 BH10S
| IR333-A | Everlight | LED/IR333-A/5mm |
| LPJ4013EDNL | Link-Pp | RJLD-060TC1(LPJ4013EDNL) |
| SMBJ6.0A | Littelfuse | SMBJ6.0A(DO-214AA) |
| LAN8710A-EZC | Microchip | LAN8710A-EZC(QFN32) |
| MCP2562-E/SN | Microchip | MCP2562-E/SN(SOIC-8_150mil) |
| BAT54C | NXP | BAT54C(SOT23-3) |
| RPM7236-H8 | Rohm | RPM7236-H8 |
| BSS138 | Onsemi | BSS138 |
| NCP303LSN27T1G | Onsemi | NCP303LSN27T1G(SOT-23-5) |
| ESP-WROOM-32 | Espressif Systems | ESP-WROOM-32 MODULE |
| 1N5819S4 | General Semiconductor | 1N5819S4(SOD-123) |
| MCP73833 | Microchip | MCP73833(MSOP10) |
| BC817-40 | NXP | BC817-40(SOT23) |
| SY8089AAAC | Silergy | SY8089AAAC(SOT23-5) |
| CH340T | WCH | CH340T(SSOP20W) |
| WPM2015-3 | Willsemi | WPM2015-3/TR |
| DG306-5.0-2P | Degson | TB2 DG306-5.0-2P |
| DG306-5.0-3P | Degson | TB3 DG306-5.0-3P |
| RAS-0515 | Relpol | RAS-0515 |
| SS34 | SMC Diode Solutions | 1N5822/SS34/SMA |
| BH10S | Hirose | UEXT1 BH10S |