概要
arduino spresense raspberry 比べてみた。
比較表
| Arduino Uno | Spresense | Raspberry Pi 3B | |
|---|---|---|---|
| Processor type | AVR | ARM M4F | ARM A53 |
| Bits | 8 | 32 | 64 |
| Number of cores | 1 | 6 | 4 |
| Clock speed | 16 MHz | 156 MHz | 1.2 GHz |
| Operating system | None | Nuttx | Linux |
| Boot time | 0 | <1 second | ~20 Seconds |
| RAM | 0.002MB | 1.5 MB | 1000MB |
| FLASH | 0.032MB | 8 MB | None |
| SD Card | Shield | On-Board, optional | On-Board, essential |
| eMMC | None | Shield | None |
| EEPROM | 0.001MB | Use Flash | Use microSD card |
| Voltage | 5v or 6-20V | 5V or LiPo(3.7V) | 5V |
| Typical Operating Power | 50 mW | 100mW + low power modes | 2400mW |
| audio Quality | Shield | High | Low |
| Microphones | Shield | up to 8 microphone | Stereo |
| Speakers | Shield | Stereo | Stereo |
| GNSS | Shield | GPS & GLONASS | Shield |
| Time | Shield | RTC | Shield |
| IO Pins | 14 | 29 + 4 LED | 27 |
| IO voltage | 5V | 5V/3.3V/1.8V | 3.3V |
| UART | 1 | 2 | 2 |
| SPI | 1 | 1 (3.3/5v) +1 (1.8V) | 1 |
| I2C | 1 | 1 (3.3/5V) +1 (1.8V/camera) | 2 |
| PWM | 6 | 4 | 1 |
| adc Channels | 6 | 6 | None |
| Bits | 10 | 10 | None |
| Fastest rate | ~10 kHz | 500 kSPS | None |
| USB | 1 device | 2 device | 4 host |
| Camera | Shield | 5M Pixel | 8M Pixel |
| Video display | None | SPI up to 360x240 Pixel | HDMI, DSI |
| WiFi | Shield | Shield | 802.11n |
| Bluetooth | Shield | Shield | 4.1 Classic, Low Energy |
| Ethernet | Shield | Shield | 10/100 |
| Cellular | Shield | Shield | Shield |
| 価格 | 約3000円 | 約6000円 | 約5000円 |
以上。