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Trēo™ Dual LED Indicator
$
4.99
2 Indicator LEDs
2 Label Spaces
Trēo™ GPIO Expander – TCA9534A
$
14.99
Texas instruments TCA9534A
5-V Tolerant I/O Ports
Three Hardware Address Pins Allow up to Eight Devices on the I2C bus
Pin-Change HW Interrupt
