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Since the number of I/O ports of MCU is limited, if the I/O port of MCU is directly used to drive lcd1602/2004, it will occupy more I/O port resources and not conducive to connecting more other devices. IIC lcd1602/2004 adapter board can greatly reduce the need for IO interface. The original 1602/2004 screen requires 7 IO ports (RS, RW, E, d4-d7) to drive it. This module can save 5 IO ports.
The module adopts PCF8574, which enables most MCU to realize remote I/O port extension through two bidirectional buses (I2C).The device includes an 8-bit quasi-bidirectional port and an I2C bus interface.PCF8574 current consumption is very low, and the port output latch has the ability of large current drive, can drive the LED directly. It also comes with an interrupt line (INT leak output) that can be connected to the interrupt logic of the MCU.Sending an interrupt signal via INT, The remote I/O port does not have to communicate with the I2C bus to inform the MCU whether there is data input from the port.
1. We can ship the items by DHL, FedEx, TNT, UPS, EMS, Aramex and China Mail Post.
2. We need 1-7 days to process the goods after the payment arrived.
3. We are not responsible for any accidents or delays when goods were picked by logistics company.
4. The buyers should be responsible for the import fees when goods arrived at the destination.
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2. Our Quotation includes goods cost, shipping cost and trading charges.
3. The buyers should be responsible for the trading charges.
4. The prices we quoted are correct at this time, but maybe subject to change after few days because of the currency fluctuations and the order quantity.
RUIZE Company Limited have close partnership with global big IC manufacturers and agents and devoted to IC supply services for those big electronic suppliers. RUIZE provide one-stop service of various electronic components, and also has plenty of stock in our warehouse. Products widely used in communications, computer, military, civil, automotive and other electronics products. RUIZE provides allocated, hard-to-find, standard long lead time, and obsolete components to manufacturers whose normal procurement process has failed to produce a much needed part. Because RUIZE is an independent distributor, RUIZE uses its vast network of trusted suppliers to source those components needed by its customers. Honesty wins the world,Quality creates value,Service promotes cooperation.RUIZE, your first choice electronic components supplier.