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Gravity - CH423 I2C 24 digital I/O module expansion module - DFRobot DFR0979
3703850 AN-22275
6959420922840
Shipping 11-18 b.d.
All about the product
The DFRobot CH423 contact expansion allows you to expand the system to 24 additional digital input/output ports via the I2C interface. Among them are 8 GPIO with interrupt functions and 16 GPIO. The module features a Gravity connector and standard gold pins with a pitch of 2.54 mm. The power supply voltage ranges from 3.3 V to 5 V. The module is used with LED lighting or matrix displays in related applications. It is also used as a component to extend the applications of any projects with light points.
- Type: pin expansion
- Integrated chip: CH423
- Number of pins: 24 I/O
- 8 GPIO with interrupt functions
- 16 GPO
- Communication interface: I2C bus
- Interface address: configurable from 0x20 to 0x3F (the module cannot be used with other I2C devices in the address range)
- Power supply voltage: from 3.3 V to 5 V
- Current consumption: 1 mA
- I/O current capacity: 15 mA
- Operating temperature range: from -20 °C to 80 °C
- Board dimensions: 45 x 37 mm
- Gravity - CH423 I2C pin expansion - 24 I/O - DFRobot
- Connecting cable with Gravity 4-pin connector - 1 pc
