DESCRIPTION This TinyShield is the heart of the Wireling line. Featuring a 4-channel Multiplexer, on-board voltage regulation, and level shifting - this board allows you to add up to 4 Wirelings per Shield to your project with ease! Using a multiplexer also allows you to use two or more I²C devices with the same address, without interference problems. Up to 8 Wireling Adapters may be stacked together by changing the address resistors on the board for a total of 32 Wirelings. Wireling Adapter TinyShields are compatible with TinyCircuits processors that have a 32-Pin Connector. New to Wirelings? Check out the Wireling Overview! Note* 5-Pin Wireling cables not included and sold separately. TECH SPECS MULTIPLEXER Specs I²C Bus Four Active-Low Interrupt Inputs Active-Low Interrupt Output Three Address Pins TinyDuino Power Requirements Voltage: 3.0V - 5.5V Pins Used A5/SCL - I²C Serial Clock line A4/SDA - I²C Serial Data line INT - Optional IO2 or IO3 on TinyDuino IO4 - Power Control I²C Address used: 0x70 Dimensions 20mm x 20mm (.787 inches x .787 inches) Max Height (from the bottom of 32-pin expansion connector to top Wireling Connector): 5.9mm (0.23 inches) Weight: 1 gram (.04 ounces) NOTES You can also use this TinyShield without the TinyDuino – modifying the connecting cable by removing the opposite connector and stripping/tinning the wires, you can solder the connector cable to any other microcontroller board of your choice! When bringing the device out of low power mode, it may be necessary to re-initialize certain sensors. Check the component datasheets to ensure proper operation and setup times for each Wireling is used. The Wireling Adapter TinyShield (ASD2022) incorporates level shifting and a local power supply to ensure proper and safe operation over the entire TinyDuino operating voltage range up to 5V. DOWNLOADS PCA9544A Datasheet Design Files Schematic Arduino Example Code CAD 3D and 2D Files
