MPR121 V12 Proximity Capacitive Touch Sensor I2C Interface Module Adjustable Step UP Boost Power Converter The TO-220 package and a

The TO-220 package and a variety of preset output voltages make the LM7809 family of three terminal positive regulators suitable in a wide range of Applications

and a 5-lead TO-263 surface mount package

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

H )€š¬€ž¢ or Y= A€š¬€ž¢+B€š¬€ž¢+C€š¬€ž¢+D€š¬€ž¢+E€š¬€ž¢+F€š¬€ž¢+G€š¬€ž¢+H€š¬€ž¢ for each NAND gate

The LM2596 series operates at a switching frequency of 150 kHz thus allowing smaller sized filter components than what would be needed with lower frequency switching regulators

MPR121 V12 Proximity Capacitive Touch Sensor I2C Interface Module Adjustable Step UP Boost Power Converter The TO-220 package and aThis 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,