New
Olimex ESP32-EVB Development Board - with 2 Relays
- Availability: Directly available from warehouse in Eindhoven
- SKU: 006995
€24.25
Ex Tax: €20.04
A development board from Olimex based on a ESP32 microcontroller by Espressif with 2 relay switches. For extra connectivity, the board has multiple wireless communication interfaces (including Wi-Fi/Bluetooth). The module also includes an Ethernet connector for a wired internet connection. Finally, the board has a battery connector where a Li-ion/Li-Po battery (not included) can be connected, which can also be charged via the board.
See the following page for more information: GitHub
See the following page for more information: Manufacturer page
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Specifications
| General | |
| Brand | Olimex |
| Manufacturer model/SKU | ESP32-EVB |
| Model revision | K1 |
| Norm conformity | RoHS |
| Minimum operating temperature [°C] | 0 |
| Maximum operating temperature [°C] | 70 |
| Features | Battery charger Electric switch Microcontroller SD-card adapter Programmable button(s) |
| General physical appearance | |
| Main color | Red |
| Weight [g] | 56 |
| Dimension X [mm] | 75 |
| Dimension Y [mm] | 75 |
| Mounting options | Mounting hole(s) |
| Diameter mounting hole(s) [mm] | 3.2 |
| Form factor | Module (general) |
| General electrical properties | |
| Minimum supply voltage [V DC] | 5 |
| Maximum supply voltage [V DC] | 5 |
| Minimum IO-pin input voltage [V] | 3.3 |
| Maximum IO-pin input voltage [V] | 3.3 |
| IO-pin output voltage [V] | 3.3 |
| Maximum IO-pin source current [mA] | 20 |
| Maximum IO-pin sink current [mA] | 28 |
| MCU/SoC | |
| Manufacturer | Espressif |
| Chip series | ESP32 |
| Maximum clock frequency [MHz] | 240 |
| Number of cores | 2 |
| Internal memory | |
| SRAM [KB] | 520 |
| PSRAM [MB] | 0 |
| Flash memory [MB] | 4 |
| EEPROM type | Emulated |
| Communication | |
| Hardware interface(s) | I2C I2S SPI UART PWM ADC DAC GPIO Ethernet USB CDC CAN |
| Number of IO-pins | 26 |
| Maximum available hardware PWM channels | 16 |
| Maximum available analog input pins (ADC) | 16 |
| Maximum available analog output pins (DAC) | 2 |
| Maximum available hardware UART interfaces | 3 |
| Maximum available hardware I2C interfaces | 2 |
| Maximum available hardware SPI interfaces | 2 |
| USB to serial converter | CH340T |
| CAN bus tranceiver | SIT1050 |
| Number of CAN bus channels | 1 |
| Ethernet chip/SoC | LAN8710A |
| Supported SD card size | Micro SD |
| Wireless communication | |
| Interface(s) | Wi-Fi Bluetooth IR |
| Wi-Fi chip/SoC | ESP32 |
| Wi-Fi frequency [GHz] | 2.4 |
| Bluetooth chip/SoC | ESP32 |
| Bluetooth version | 4.2 |
| Supported Bluetooth standard(s) | LE Classic |
| IR chip | VS1838B |
| IR receiver/transmitter | Receiver Transmitter |
| Switch | |
| Switching method | Electrical |
| Switch type | Mechanical relay |
| Number of channels/gangs | 2 |
| Contact(s) | NC (normally closed) NO (normally open) |
| Maximum switching voltage [V AC] | 50 |
| Maximum switching voltage [V DC] | 24 |
| Switching voltage equal to supply voltage | No |
| Maximum switching current per channel (resistive load) [A] | 10 |
| Battery circuit | |
| Battery charger chip/SoC | BL4054B |
| Supported battery chemistry | Li-ion Li-Po |
| Maximum charging voltage [V] | 4.2 |
| Maximum charging current [mA] | 500 |
| Adjustable charging current | No |
| Protection circuit | No |
| Connectors | |
| Power supply connector(s) | Through hole solder pin(s) (2.54mm) Micro USB female DC-jack 5.5/2.1mm female |
| IO-connector(s) | Screw terminal Pin header male (2.54mm) Through hole solder pin(s) (2.54mm) RJ45 female |
| Battery connector(s) | JST-PH (compatible) male |
| Switch connector(s) | Screw terminal |
| Wi-Fi/Bluetooth antenna connector | Built-in antenna |
| Package contents | |
| Package contents | 1x ESP32-EVB 3x Rubber foot |