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CJMCU-3212 ATmega32u4+ESP8266 Development Board
$23.9500
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SKU
DEV-03-001
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- +25 4 % $22.9900
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- +300 10 % $21.5500
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NodeMcu Lua ESP8266 WiFi Development Board CP2102 Driver - Type-C interface Previous 
The CJMCU-3212 ATmega32u4+ESP8266 Development Board is a development board built around an ATmega32u4 microcontroller and an ESP8266 WiFi module. It is designed for IoT applications that require WiFi connectivity and microcontroller control. The board includes USB connectivity for the ATmega32u4 and UART communication between the ATmega32u4 and ESP8266. It also provides I2C, SPI, and SD reader support for the ATmega32u4. This board is suitable for electronics and robotics projects that need multiple interface options.
Features of CJMCU-3212 ATmega32u4+ESP8266 Development Board
- ATmega32u4 microcontroller
- ESP8266 WiFi module
- USB connectivity
- UART communication
- I2C interface
- SPI interface
- SD reader support
Specifications of CJMCU-3212 ATmega32u4+ESP8266 Development Board
- Microcontroller: ATmega32u4
- WiFi Module: ESP8266
- Operating Voltage: 5V for ATmega32u4
- Operating Voltage: 3.3V for ESP8266
- Low-dropout voltage regulator with enable
- Interfaces: USB for ATmega32u4 (USB Connector)
- Interfaces: UART ATmega32u4 to ESP8266
- Interfaces: I2C for ATmega32u4 (Pin Header)
- Interfaces: SPI for ATmega32u4 (Pin Header)
- Interfaces: SD Reader for ATmega32u4 (Selector PD4)
- Flash Memory: 32KB (ATmega32u4)
- Flash Memory: 4MB (ESP8266)
- Dimensions:
How to Use CJMCU-3212 ATmega32u4+ESP8266 Development Board
- Power the board at the required operating voltage for each section.
- Use USB, UART, I2C, SPI, or SD reader connections as needed for your project.
- Integrate the board into your development setup for IoT or wireless communication tasks.
More Info
- Includes ATmega32u4 and ESP8266
- Development resources are available online
| MCU/SoC | ATmega32u4, ESP8266 |
|---|---|
| Architecture | Tensilica L106 32-bit (AVR) |
| CPU Cores | 1-Core (ATmega32u4), 1-Core (ESP8266) |
| Clock Speed (MHz) | 16 MHz (ATmega32u4), 80 MHz (ESP8266) |
| Flash | 32KB,4MB |
| SRAM | 2.5KB (ATmega32u4),160KB (ESP8266) |
| EEPROM | 1KB (ATmega32u4) |
| SPI interface Pins | 1 |
| I2C interface Pins | 1 |
| UART interface Pins | 1 |
| USB Ports | 1 x Micro-USB Connector (ATmega32u4) |
| Ethernet Support | No |
| ADC Channels | 12 (ATmega32u4), 1 (ESP8266) |
| Operating Voltage (V) | 5V, 3.3V |
| GPIO Voltage (V) | 3.3V, 5V |
| GPIO Current (mA) | 40mA (ATmega32u4), 12mA (ESP8266) |
| Wireless | WiFi |
| IDE Support | Arduino IDE |
| Antenna Type | Internal Antenna |
| Bluetooth Ver. | No |
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