MPR121 V12 Proximity Capacitive Touch Sensor I2C Interface Module Adjustable Step UP Boost Power Converter This is a high-quality sponge

This is a high-quality sponge made specifically for cleaning soldering iron tips that can quickly clean the tip surface of the oxide while causing no harm to the tip of the alloy layer

This means that the output pin of a counter can drive 10 TTL based Low-Power Schottky( LS ) input pins

Any microcontroller or other control system circuits can be used to control loads rated up to 250V 10A AC directly

For TV & Music systems

No heatsink required up to 34 W using P/G packages

MPR121 V12 Proximity Capacitive Touch Sensor I2C Interface Module Adjustable Step UP Boost Power Converter This is a high-quality spongeThis MPR121 is a capacitive touch sensor controller driven by an I2C interface. The chip can control up to twelve individual electrodes, as well as a simulated thirteenth electrode The MPR121 also features eight LED driving pins, when these pins are not configured as electrodes, they may be used to drive LEDs. There are four jumpers on the bottom of the board, all of which are set (closed) by default. An address jumper ties the ADD pin to the ground,