LCD1602A_IIC
$1.691pcs
The module is based on the PCF8574, which enables most MCUs to achieve remote I/O expansion via a bidirectional I2C bus.
| Dimensions | 42 × 19 × 15 mm |
|---|---|
| Brand |
easyelecmodule |
5363 in stock
LCD 1602A to I2C Module
The module is based on the PCF8574, which enables most MCUs to achieve remote I/O expansion via a bidirectional I2C bus. This device contains an 8-bit quasi-bidirectional port and an I2C bus interface. The PCF8574 features low current consumption, and its latched port outputs have high-current drive capability, allowing them to directly drive LEDs.
It also includes an interrupt line (INT, open-drain output) that can be connected to the MCU’s interrupt logic. By sending an interrupt signal via the INT pin, the remote I/O ports can notify the MCU if there is data input, all without needing to communicate via the I2C bus.
- Shorting Cap: Backlight can be enabled by this cap, unplug this cap to disable the backlight.
- Potentiometer: It is used to adjust the contrast (the clarity of the displayed text), which is increased in the clockwise direction.
- Pads: The default address is basically 0x27, in a few cases, it may be 0x3F. Taking the default address of 0x27 as an example, the device address can be modified by shorting the A0/A1/A2 pads; in the default state, A0/A1/A2 is 1, and if the pad is shorted, A0/A1/A2 is 0.
Shorting Cap: Backlight can be enabled by this cap，unplugg this cap to disable the backlight.
Potentiometer: It is used to adjust the contrast (the clarity of the displayed text), which is increased in the clockwise
Configure the I2C Address：The default address is basically 0x27, in a few cases it may be 0x3F.Taking the default address of 0x27 as an example, the device address can be modified by shorting the A0/A1/A2 pads; in the default state, A0/A1/A2 is 1, and if the pad is shorted, A0/A1/A2 is 0.
| IIC MODULE PINS | FUNCTION DESCRIPTION | CONNECT TO ARDUINO UNO | REMARKS |
|---|---|---|---|
| VCC | Power Positive | 5V | Power Supply 5V (Some modules are also compatible with 3.3V) |
| GND | Power Ground | GND | Common Ground |
| SDA | I²C Data Line | A4 | SDA of UNO |
| SCL | I²C Clock Line | A5 | SCL of UNO |
| (Backlight Pad) | Control Backlight | Module’s Own Jumper | Short Circuit = Backlight Always On, Disconnect = Backlight Controllable |
| (Blue Potentiometer) | Contrast Adjustment | Built-in Adjustment | Rotate Clockwise/Counterclockwise to Adjust Display Contrast |
Shipping Cost
We only ship to the United States. Shipping costs are calculated based on the total order amount.
Shipping Method And Delivery Time
All orders will be processed and shipped within 72 hours of placing the order (excluding weekends and holidays). They will ship from Shenzhen, China, primarily via 4PX logistics. Depending on the destination and logistics conditions, other carriers such as DHL, FedEx, UPS, USPS, etc., may also handle the delivery. Estimated shipping time is 7-12 business days, with actual delivery occurring in 10-17 business days, depending on logistics conditions.
Payment:
We accept Visa, Master card, Maestro, American Express, JCB, Dinner's Club, Discover, Paypal, Apple Pay, Google Pay .
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