USB-TTL преобразователь — выполнен на микросхеме PL2303, служит для подключения микроконтроллеров к ПК, через порт UART. Такой можно купить у китайцев на Aliexpress по этой ссылке, цена преобразователя около 0.7$, что очень мало.
Микросхема PL2303HX, создает на ПК виртуальный COM-порт. Конвертер используется для программирования микросхем и микроконтроллеров, поддерживающих уровни сигналов TTL (0 – 5В). Применяется для прошивки различных устройств на микроконтроллерах.
USB PL2303 — RS232 TTL конвертер имеет два интерфейса для подключения к компьютеру и для подключения программируемых устройств:
для подключения устройства к компьютеру используется стандартный USB интерфейс;
для подключения программируемых устройств используется 5-ти контактний штыревой интерфейс. Питание конвертера осуществляется от USB порта компьютера напряжением в 5В.
Смотрите ещё:
Преобразователь USB-UART на базе CH340G. Скачать драйвера для windows
Terminal 1.9b — работаем с COM-портом. Скачать
Обозначение контактов:
| Контакт | Описание |
|---|---|
| 3.3V | питание устройств с уровнем сигнала TTL 3,3В |
| 5.0V | питание устройств с уровнем сигнала TTL 5В |
| RXD | прием данных |
| TXD | передача данных |
| GND | общий контакт |
Характеристики PL2303:
- Конвертер USB в TTL;
- Поддерживаемые операционные системы: Win7/Vista/XP/2000/ME/98;
- Конвертер собран на чипе: PL-2303HX;
- Напряжение питания: 5В (от USB порта компьютера);
- Интерфейс подключения к компьютеру: USB 2.0;
- Поддержка уровней сигналов TTL: 3,3 и 5В;
- Светодиодная индикация;
- Рабочая температура -40…+85°C;
- Размеры: 50,7 х 15,2 х 7,6 мм;
- Вес: 5 г.
Светодиоды:
| P | Power — питание (горит постоянно) |
| R | RXD — принимаемые данные |
| T | TXD — передаваемые данные |
Скачать
драйвера PL2303HX или PL2303 Windows Driver Download
Terminal 1.9b — работаем с COM-портом
Для Windows 10 DriverInstaller v1.0.2.5 — Prolific PL2303 driver v3.3.3.114
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