Arduino ESP8266 WIFI OLED NodeMCU
- Mã sản phẩm: Arduino ESP8266 WIFI OLED NodeMCU
- Nhà sản xuất: Heltec
- Website hỗ trợ: https://www.proe.vn
320.000₫
WiFi Kit 8 is a part of the “Heltec ESP Arduino“ series, with the following features:
- Microprocessor: ESP8266 ;
- Micro USB interface with a complete voltage regulator, ESD protection, short circuit protection, RF shielding, and other protection measures;
- Onboard SH1.25-2 battery interface, integrated lithium battery management system (charge and discharge management, overcharge protection, battery power detection, USB / battery power automatic switching);
- Onboard 2.4GHz (for Wi-Fi) PCB antenna;
- Onboard 0.91-inch 128*32 dot matrix OLED display, which can be used to display debugging information, battery power and other information;
- Integrated CP2104 USB to serial port chip, convenient for program downloading, debugging information printing;
- Compatible with the Arduino development environment.
Technical Parameters
| Source | Parameter | |
| MCU | ESP8266 (160MHz Tensilica L06 32-bits,SRAM, Wi-Fi) | |
| Hardware Resources | UART x 2; SPI x 1; I2C x 1; I2S x 1 | |
| 10 – bits ADC | ||
| 17 general GPIO | ||
| Display | 0.91寸 128*32 OLED display | |
| FLASH | 4MB(32M-bits) SPI FLASH | |
| Interface | Micro USB x 1 | |
| Size | 50.8 x 18.2 x 6.69 mm | |
| USB to UART bridge | CP2104 | |
| Battery Type | 3.7V Lithium (SH1.25 x 2 socket) | |
| Working Temperature Range | -40 ~ 85 ℃ | |
Electrical characteristics
| Electrical characteristics | Condition | Minimum | Typical | Maximum |
| Power Supply | USB Powered (≥500mA) | 4.7V | 5V | 6V |
| Lithium powered (≥250mA) | 3.3V | 3.7V | 4.2V | |
| 3.3V (Header) powered（≥150mA） | 2.7V | 3.3V | 3.5V | |
| 5V (Header) powered（≥500mA） | 4.7V | 5V | 6V | |
| Power consumption(mA) | WIFI Scan | 115mA | ||
| WIFI AP | 135mA | |||
| Output | 3.3V Header Output | 500mA | ||
| 5V Header output (USB powered only) | Equal to input current |
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