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Burnett Canada
5Pcs MPR121-Breakout-v12 Proximity Capacitive Touch Sensor Controller Keyboard Development Board
5Pcs MPR121-Breakout-v12 Proximity Capacitive Touch Sensor Controller Keyboard Development Board
常规价格
$34.21 CAD
常规价格
促销价
$34.21 CAD
单价
/
单价
无法加载取货服务可用情况
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 to 3.6VDC. The VREG pin 2.5 and 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).Package included:5 x MPR121-Breakout-v12 Proximity Capacitive Touch Sensor Board
Shipping Info
Shipping Info
Estimated Shipping Times
Every supplier ships products from different locations
Most suppliers are out of Canada
These are the following estimated delivery times
15 to 45 days for most products
7 to 10 day for Burnett Canada Collection
Thank you for your patience
Return & Exchange
Return & Exchange
Refund policy: Out company is still in transition stage after the global COVID-19 pandemic.
That means this business is currently only online, all purchases are final sale.
We encourage everyone to follow health guidelines for each local government.
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