LOLIN(WEMOS) D1 ESP-WROOM-02 Development Board Pinout and Technical Specifications
Code name: ESP8266_WEMOS_D1WROOM02
LOLIN(WEMOS) D1 ESP-WROOM-02 development board is based on esp8266 microcontroller and uses Tensilica Xtensa LX106 architecture. This development board has a maximum CPU frequency of 160 MHz and a maximum data upload size of 81.92 Kb.
Features
- digital IO pins
- external interrupt pins
- analog input pins
Connectivity
- WiFi: 802.11 b/g/n (2.4 GHz)
- Bluetooth: No
- BLE: NO
Technical specs
| Clock Speed | 160 MHz |
| Upload Maximum Data size | 81920 |
| Microcontroller | esp8266 |
| Architecture | Tensilica Xtensa LX106 |
LOLIN(WEMOS) D1 ESP-WROOM-02 Pins Mapping Arduino IDE
Below you can find the LOLIN(WEMOS) D1 ESP-WROOM-02 pinout. This development board provides digital IO pins, out of which can be used as an external interrupt pins and as analog input pins .
| Pin | Analog | Touch | PWM | Other |
|---|---|---|---|---|
| 0 | ||||
| 1 | TX | |||
| 2 | LED_BUILTIN | |||
| 3 | RX | |||
| 4 | ||||
| 5 | ||||
| 12 | ||||
| 13 | ||||
| 14 | ||||
| 15 | ||||
| 16 | ||||
| PIN_WIRE_SDA | SDA | |||
| PIN_WIRE_SCL | SCL |
Analog - Analog input pins
Touch - Touch pins
Function - Function pins
RX / TX - Receive (RX) / Transmit (TX)
LED_BUILTIN - Built-in LED
PWM - Pulse-Width Modulation
Default Tools
| Bootloader tool | |
| Uploader tool | esptool |
| Network uploader tool | |
| Bootloader address | |
| Flash mode | dio |
| Boot mode | |
| PSRAM type | |
| Maximum data size | 80 Kb (81920 B) |
The LOLIN(WEMOS) D1 ESP-WROOM-02 development board by default uses esptool uploader tool and bootloader tool. Flash mode for LOLIN(WEMOS) D1 ESP-WROOM-02 development board by default is dio. When using Arduino IDE, the maximum data size for variables is 80 Kb (81920 B).