擴展板
Arduino Sensor Shield 傳感器擴展板
Arduino Sensor Shield
對Arduino初學者而言，掌握各個GPIO的確相當困難，但是又想感受Arduino連接各種傳感器的樂趣，那BotSheet的這塊Arduino Sensor Shield傳感器擴展板就一定是恩物。它能夠把Arduino Uno全部的數碼及模擬接口獨立擴展出來，不必為繁瑣複雜的電路連線而煩惱，這款傳感器擴展板將電路簡化，能夠簡易地將常用的傳感器連接起來，輕鬆完成你一個互動的Arduino電路。
規格
- 邏輯電平
- 5 V
- 介面
- gpio, analog, pwm, i2c, uart
- 尺寸
- 52 × 56 × 20 mm
針腳
| 名稱 | 類型 | 說明 |
|---|---|---|
| AREF | analog | Analog reference voltage input/output |
| GND | ground | |
| 13 | bidirectional | Onboard LED |
| 12 | bidirectional | |
| 11 | bidirectional | PWM |
| 10 | bidirectional | PWM |
| 9 | bidirectional | PWM |
| 8 | bidirectional | |
| 7 | bidirectional | |
| 6 | bidirectional | PWM |
| 5 | bidirectional | PWM |
| 4 | bidirectional | |
| 3 | bidirectional | PWM |
| 2 | bidirectional | |
| 1 | bidirectional | TX |
| 0 | bidirectional | RX |
| V | power | Positive supply (5V) |
| G | ground | |
| S | bidirectional | Signal |
| 5V | power | |
| VCC | power | |
| Vin | power | External power input |
| 3V3 | power | |
| RESET | input | Reset signal |
| A0 | analog | |
| A1 | analog | |
| A2 | analog | |
| A3 | analog | |
| A4 | analog | I2C SDA |
| A5 | analog | I2C SCL |
| SCL | output | I2C clock |
| SDA | bidirectional | I2C data |
| TX | output | UART transmit |
| RX | input | UART receive |
| URF | power | Ultrasonic module power |
| SDI | bidirectional | Ultrasonic module signal |
| COM | bidirectional | General communication/serial interface |
| IIC | bidirectional | I2C interface |
| APC220 | bidirectional | APC220 wireless module interface |
| BLUETOOTH | bidirectional | Bluetooth module interface |
| NC | nc |
使用注意
- 此擴展板僅為被動接線板，不包含主動晶片，所以 specs 中嘅 chip、i2c_address 等欄位不適用。供電方面，可透過板載 DC 電源座或 Vin 排針輸入 7-12V，亦可由 Arduino 主機板嘅 5V 直接供電；但要注意如果同時從外部電源同 USB 供電，可能會產生電壓衝突。接線陷阱：APC220 同 BLUETOOTH 排針共享部分腳位，使用時要避免同時插上兩個模組；URF 同 SDI 係超聲波模組專用接口，對應嘅觸發同回響腳位要睇清楚，唔好插錯。另外，板上絲印嘅 V/G/S 排列係固定嘅（V 喺上、S 喺下），但唔同廠商嘅感測器線序可能相反，插之前最好用他錶確認一下，避免將電源同地線倒轉而燒毀模組。