ET-Board Development Board Pinout and Technical Specifications
Code name: ET-Board
ET-Board development board is based on esp32 microcontroller and uses xtensa architecture. This development board has a maximum CPU frequency of 240 MHz and a flash size of 4MB.
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ET-Board Specs
Below you can find the specifications of ET-Board, such as features, connectivity options, and ET-Board technical specs.
Features
- 40 digital IO pins
- 16 external interrupt pins
- 7 analog input pins
- 18 PWM pins
Connectivity
- WiFi: 802.11 b/g/n (2.4 GHz)
- Bluetooth: 4.2
- WiFi: 4.2
Technical specs
| Clock Speed | 240 MHz |
| Flash size | 4MB |
| Microcontroller | esp32 |
| Architecture | xtensa |
ET-Board Pins Mapping Arduino IDE
Below you can find the ET-Board pinout. This development board provides 40 digital IO pins, out of which 16 can be used as an external interrupt pins , 7 as analog input pins and 18 pins have Pulse-Width Modulation (PWM) .
| Pin | Analog | Touch | PWM | Other |
|---|---|---|---|---|
| 4 | PWM | |||
| 5 | PWM | LED_BUILTIN | ||
| 12 | PWM | |||
| 13 | PWM | |||
| 14 | PWM | |||
| 15 | PWM | |||
| 16 | PWM | |||
| 17 | PWM | |||
| 21 | PWM | SDA | ||
| 22 | PWM | SCL | ||
| 25 | A6 | PWM | DAC1 | |
| 26 | A7 | PWM | DAC2 | |
| 27 | PWM | |||
| 29 | PWM | SS | ||
| 30 | PWM | SCK | ||
| 31 | PWM | MISO | ||
| 32 | A2 | PWM | ||
| 33 | A3 | PWM | ||
| 34 | A4 | TX | ||
| 35 | A5 | RX | ||
| 36 | A0 | |||
| 37 | MOSI | |||
| 39 | A1 |
Default Tools
| Bootloader tool | esptool_py |
| Uploader tool | esptool_py |
| Network uploader tool | esp_ota |
| Bootloader address | 0x1000 |
| Flash mode | dio |
| Boot mode | dio |
| PSRAM type | |
| Maximum upload size | 1280 Kb (1310720 B) |
| Maximum data size | 320 Kb (327680 B) |
The ET-Board development board by default uses esptool_py uploader tool, esp_ota network uploader tool for Over-the-air (OTA) uploads and esptool_py bootloader tool. The bootloader starts at address "0x1000". Flash mode and boot mode for ET-Board development board by default is dio and dio respectively.
