Компонент Adafruit EZ-Link Shield
Мы рады добавить еще один продукт в нашу растущую линейку Adafruit Bluefruit, на этот раз это Bluefruit EZ-Link Shield: лучший последовательный экран Bluetooth, когда-либо созданный. Как и вы, мы приобрели все виды Bluetooth-экранов с большими ожиданиями - мы просто хотели что-то, что работало бы! Но ничто никогда не делало в точности то, что мы хотели: всегда приходилось пробираться через какие-то режимы настройки, а попытка перепрограммировать Arduino невозможна.Итак, мы сделали то, что делаем всегда, мы пошли и спроектировали что-то лучшее. Что-то, что работает!Bluefruit EZ-Link shield - это обычное клиентское устройство последовательной связи SPP, которое может подключаться к любому компьютеру или планшету и отображаться как последовательный / COM-порт (за исключением iOS, поскольку iOS не разрешает сопряжение SPP). Но вот тут-то и начинается самое интересное: в отличие от любого другого модуля BT, EZ-Link может автоматически определять и изменять скорость последовательной передачи данных в бодах. Это означает, что если вы откроете COM-порт на своем компьютере со скоростью 9600 бод, то на выходе будет 9600, 57600? 57600. Да, даже 2400. Поддерживаются все наиболее распространенные скорости передачи данных в бодах: 2400, 4800, 9600, 19200, 38400, 57600, 115200 и 230400. Вам никогда не придется настраивать модуль вручную - все это происходит полностью автоматически внутри радиочастотного модуля.
Печатная плата
Схема
Список пинов
| Пин | Тип | Описание |
|---|---|---|
| STATE | female | — |
| +3V3 | female | — |
| STX | female | — |
| SRX | female | — |
| DSR_5V | female | — |
| D7 | female | — |
| D6 | female | — |
| D5 | female | — |
| D4 | female | — |
| D3 | female | — |
| D2 | female | — |
| D1 | female | — |
| D0 | female | — |
| VIN | female | — |
| GND | female | — |
| GND | female | — |
| +5V | female | — |
| 3.3V | female | — |
| /RESET | female | — |
| IOREF | female | — |
| NC | female | — |
| A5 | female | — |
| A4 | female | — |
| A3 | female | — |
| A2 | female | — |
| A1 | female | — |
| A0 | female | — |
| 3.3V | female | — |
| +5V | female | — |
| 5V_ICSP | male | — |
| A0 | female | — |
| A1 | female | — |
| A2 | female | — |
| A3 | female | — |
| A4 | female | — |
| A5 | female | — |
| AREF | female | — |
| D0 | female | — |
| D1 | female | — |
| D2 | female | — |
| D3 | female | — |
| D4 | female | — |
| D5 | female | — |
| D6 | female | — |
| D7 | female | — |
| D8 | female | — |
| D9 | female | — |
| D10 | female | — |
| D11 | female | — |
| D12 | female | — |
| D13 | female | — |
| GND | female | — |
| GND | female | — |
| GND | female | — |
| GND | male | — |
| IOREF | female | — |
| MISO | male | — |
| MOSI | male | — |
| NC | female | — |
| /RESET | female | — |
| RESET_ICSP | male | — |
| SCK | male | — |
| SCL | female | — |
| SDA | female | — |
| VIN | female | — |
| SCL | female | — |
| SDA | female | — |
| AREF | female | — |
| GND | female | — |
| D13 | female | — |
| D12 | female | — |
| D11 | female | — |
| D10 | female | — |
| D9 | female | — |
| D8 | female | — |
| N$26 | female | — |
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