5x Mpr121 Breakout V12 Capacitive Touch Sensor Controller Module I2c Keyboard

US $14.33

??, ???, China
May 3rd

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New MPR121 Breakout V12 Capacitive Touch Sensor Controller Module I2C keyboard Description: This is a breakout board for Freescale's MPR121QR2. The 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 a four jumpers on the bottom of the board, all of which are set (closed) by default. An address jumper ties the ADD pin to ground, meaning the default I2C address of the chip will be 0x5A. If you need to change the address of the chip (by shorting ADD to a different pin), make sure you open the jumper first. Jumpers also connect SDA, SCL and the interrupt pin to 10k pull-up resistors. If you don't require the pull-up resistors you can open the jumpers by cutting the trace connecting them. There is no regulation on the board, so the voltage supplied should be between 2.5 and 3.6VDC. The VREG pin is connected through a 0.1uF capacitor to ground, which means, unless you modify the board, you can't operate the MPR121 in low-supply voltage mode (1.71-2.75VDC). Size:3cm x 2cm . Package Included: 5x New MPR121 Breakout V12 Capacitive Touch Sensor Controller Module I2C keyboard Payment Payment Payable To Note PayPal All payments are due within 7 days of the close of auction. Failing to do so, non-paying bidders will be reported to eBay. Shipping Policy Delivery Time We ship to worldwide, it usually takes 10-30 Business Days to delivery. Shipping address We ship to your PayPal address. Please, make sure to provide us with correct, precise, and detailed shipping Address. Send Time Items will be shipped within 1 to 3 business days upon payment received or cleared. Note If you don't receive items over 30 business days, please notify us via eBay message. Return Policy We appreciate your business and offer an instant 7 days return policy.(7 days after receive the item). The returned item has to be in its original condition. We are able to refund your money without shipping cost. Contact us For anything about product, price, shipping or order status, please contact us via eBay message. We love positive feedback and 5 scores DSR. We will leave it for everyone that leaves it for us.