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Microcontroller(Small Size) Selection Guide |
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| Model | Beetle - The Smallest Arduino Board | DFRduino Pro Mini V1.3 (16M5V328) | DFRduino Pro Mini V1.3(8M3.3V328) | Dreamer Nano | DFRduino Nano | Bluno Nano |
| SKU | DFR0282 | DFR0159 | DFR0132 | DFR0213 | DFR0010 | DFR0296 |
| Processor | ATmega32u4 | ATmega328 | ATmega328 | ATmega32u4 | ATmega328 | ATmega328 |
| Board Type | Arduino Leonardo | Arduino Pro Mini(16M) | Arduino Pro Mini(8M) | Arduino Leonardo | Arduino Nano/ATmega328 | Arduino UNO |
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Operating Voltage (voltage / input voltage) |
5 V/3-5 V | 5 V/3.6-8 V | 3.3 V/3.6-8 V | 5 V/7-12 V | 5 V/7-12 V | 5 V/7-12 V |
| CPU Frequency | 16MHz | 16MHz | 8MHz | 16MHz | 16MHz | 16MHz |
| Flash[KB] | 32 | 32 | 32 | 32 | 32 | 32 |
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Analog Ports (Input / output) |
5 / 0 | 8 / 0 | 8 / 0 | 12 / 0 | 8 / 0 | 6 / 0 |
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Digital Ports (IO/PWM) |
10 / 4 | 14 / 6 | 14 / 6 | 20 / 7 | 14 / 6 | 14 / 6 |
| UART | 1 | 1 | 1 | 2 | 1 | 1 |
| I2C | 1 | 1 | 1 | 1 | 1 | 1 |
| Download | Micro USB | FTDI Downloader | FTDI Downloader | Micro USB | Mini USB | Micro USB |
| Dimension | 20 x 22mm | 33 x 18mm | 33 x 18mm | 45 x 20mm | 47 x 19mm | 53 x 19mm |
| Price | $7.90 | $8.90 | $8.90 | $19.95 | $19.50 | $24.90 |
| Features |
*The beetle is one of the smallest Arduino Leonardo board.
*It is compatible with Micro USB so that direct programming and testing is no longer a headache.
*Suitable for artists and designers to make small and delicate Arduino works.
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*DFRduino Pro Mini is small but powerful. It has a strong chip.
*It performs well even compared with Arduino boards of standard size.
*It can be widely applied to flight controllers, small machines. And it can satisfy people's special requirements for size.
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*The only difference between the DFRduino Pro Mini V1.3(8M3.3V328) and Pro Mini V1.3 (16M5V328) is that the later has an operating voltage of 3.3V.
*Both of them have 2 analogs I/O than normal main controllers.
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*The ATmega32u4 chip used by the DFRduino Nano. It looks like the Nano, but the function is more powerful.
*It is the most IO port and UART master controller in microcontrollers.
*It can be widely applied to dual-string communication systems.
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*DFRduino Nano adopts ATmega328, which is totally compatible with Arduino Nano.
*It is suitable for all scenarios that need to be compatible with Arduino UNO or DFRduino UNO.
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*Bluno Nano is a mini Arduino master with Bluetooth 4.0.
*It brings more possibilities and freedom to the development of Android and IOS mobile applications.
*It is suitable for Bluetooth developers with special size requirements.
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