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CH423 I2C 24 24位數字IO擴展模組 8個輸入/輸出 + 16個輸出腳位
原始價格：NT$270。NT$200目前價格：NT$200。 (未稅)
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描述
描述
CH423 I2C 24位數字IO擴展模組 8個輸入/輸出 + 16個輸出腳位，通過I2C擴展24個數位GPIO，解決引腳不夠用的問題
這是一款基於CH423晶片的IO擴展模組，該模組可通過I2C擴展出24個數字口(8個GPIO口，支援輸入、輸出、中斷功能，16個GPO口，支援輸出功能)。模塊內置電流驅動電路，連續驅動電流可達15mA，可以靜態驅動24只LED或動態驅動128只LED，適用於LED數碼管、點陣屏、燈陣、光立方等驅動。
特性
- 8個通用輸入輸出引腳
- 16個通用輸出引腳
- 內置電流驅動電路，連續驅動電流可達15mA
應用場景
- LED數碼管驅動
- 點陣屏驅動
- 燈陣驅動
技術規格
- 供電電壓：3.3V~5V
- 靜態電流：1mA
- IO連續驅動電流：15mA
- 通訊方式：I2C
- I2C地址：0x20~0x3F(該模組會佔用0x20~0x3F的I2C地址，不能與該地址段的I2C設備一起使用)
- 工作溫度範圍：-20℃~80℃
- 產品尺寸：45*37mm
配送清單
- Gravity: CH423 I2C 24位數字IO擴展模組 x1
- Gravity-4P I2C/UART傳感器連接線 x1
Gravity: CH423 I2C 24 Digital IO Expansion Module
This IO expansion board based on the CH423 chip extends 24 digital ports via I2C, including 8 GPIOs with interrupt functions and 16 GPOs.
CH423 has a built-in current drive circuit that offers a 15mA continuous drive current, which can statically drive 24 LED tubes or dynamically drive 128 LEDs. This CH423 I2C to GPIO IO expander is suitable for projects involving LED tubes, dot matrix screens, light cubes, etc.
Connect Diagram
FEATURES
- 8 general input/output pins
- 16 general output pins
- Built-in driving circuit, up to 15mA continuous driving current
APPLICATIONS
- Driving LED lights
- Driving Dot matrix screen
- Driving Light Cubes
SPECIFICATION
- Power Supply: 3.3V~5V
- Static Current: 1mA
- IO Continuous Driving Current: 15mA
- Communication: I2C
- I2C Address: 0x20-0x3F(The module occupies I2C address of 0x20-0x3F and cannot work with I2C device in this address range.)
- Operating Temperature Range: -20℃~80℃
- Size: 45*37mm/1.78*1.46”
DOCUMENTS
SHIPPING LIST
- Gravity: CH423 I2C 24 Digital IO Expansion Module x1
- Gravity-4P I2C/UART Sensor cable x1
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