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aHR0cDovL2ZyZWVzaGlwLmNvLmty Item specifics - Model Number: MPR121
- Model Number: MPR121
Packaging Details - Unit Type: piece
- Package Weight: 0.010kg (0.02lb.)
- Package Size: 12cm x 12cm x 8cm (4.72in x 4.72in x 3.15in)
Packaging Details - Unit Type: piece
- Package Weight: 0.010kg (0.02lb.)
- Package Size: 12cm x 12cm x 8cm (4.72in x 4.72in x 3.15in)
ow.productDescripti Notice: The new tracking number for China Post Ordinary Small Packet Plus , not more Tracking information ,even it arrived or not . China post ordinary small packet plus 30-70days maybe need more time.(if you choose it ,when you not received you package within 60days ,pls dont open dispute ,because This is a normal situation, if you want ugently pls choose other delivery post,thanks) Please choose China Post Air Mail if you want a full tracking info. Tracking info of China Post Ordinary Small Packet Plus can be check here :www.17track.net/en MPR121-Breakout-v12 Proximity Capacitive Touch Sensor Controller Keyboard Development Board 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 do not 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 not operate the MPR121 in low-supply voltage mode (1.71-2.75VDC). Feedback 1.Customer satisfaction is always our No.1 Priority. If you satisfy the quality of products and service, please kindly give us your positive feedback, also we will give you as well. 2.If you have any problem after received package .Pls contact us first before make the feedback. We will respond you within 7/24 hours and do our utmost efforts to give your satisfactory reply. I believe we can solve the problem together. Thanks Shipping Terms China Post is the registerd mail. take 7-15days to arrive. somewhere will need much more! If in urgent.Pls choose the DHL/FEDEX/TNT/EMSor other. Our Goal We look forward to bring you satisfactory/hight quality products and good services with our warm and sincere hearts. Hope you have a goodbusiness trip in our store,thank you `;
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