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MPR121 Breakout V12 Capacitive Touch Sensor Controller Module I2C Keyboard

Product Description

MPR121 Breakout V12 Capacitive Touch Sensor Controller Module I2C Keyboard

Features:
This is a breakout board for Free scale's MPR121QR2.
The MPR121 is a capacity touch sensor controller driven by an I2C interface.
The chip can control up to 12 individual electrodes, as well as a simulated thirteenth electrode.
The MPR121 also features 8 LED driving pins. When these pins are not configured as electrodes, they may be used to drive LED.
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 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).

Specification:
Quantity:1pc
Material:Metal
Size:3 x 2cm
Color: Black(As the pictures shown)

Note:
Light setting and different displays may cause the color of the item in the picture a little different from the real thing.
Please allow +/- 1-3cm deviation due to manual measurement.

Package Included:1pc Capacity Touch Sensor Controller Module

1. All our stock is located in China and all shipments will originate here. Your purchase will be shipped via standard airmail two or three days after payment clears except those custom products.
2. Import duties, taxes and charges are not included in the item price or shipping charges. These charges are the buyer responsibility.Please check with your country customs office to determine what these additional costs will be prior to bidding/buying.
3. Shipping to USA is via Speedpak or EMS or UPS or Fedex. Other shipments will be shipped from china by Speedpak or EMS or DHL or Fedex. A tracking No. is provided once the item is dispatched. Delivery normally takes 7-20 business days if it can go smoothly through customs. 
4. We do not ship on holidays or weekends
5. You need to contact your local post office or customs department in the following cases:
Delivery mistake by the post office man
Delayed shipping due to customs detention
Delivery failure caused by wrong address

We only accept PayPal payment.

1. If you receive any damaged or defective items, we will exchange it as quickly as possible.
2. You must contact us within 7 days of delivery of the product to notify us of any defects.
3. You need to send a picture to prove the problems by using ebay's attaching files button
4. Items must be in original box and kept in good condition.
5. Buyer is responsible for return shipping cost if there isn't any problem with the product. No matter the item is free shipping or not, we pay money for the  shipping.You need to cover the actual shipping cost provided by us.

1.Do not hesitate to contact us anytime before and after your purchase, we are committed to your 100% customer satisfaction.
2.I am here and ready to assist you with any questions or concerns you might have before or after the purchase.
3.My goal is to make sure you are a happy customer and pleasant shopping with us.

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On May 2, 2024 at 04:19:13 PDT, seller added the following information:

DataCaciques