MPR121 Breakout V12 Capacitive Touch Sensor Controller Module I2C Interface keyboard Development Board

Original price was: 220.00৳ .Current price is: 155.00৳ .

🖐️ Capacitive touch control via MPR121 with I2C interface
🔌 Supports 12 electrodes + 1 simulated for versatile input
💡 8 pins can drive LEDs when not used as electrodes
🧠 Default I2C address is 0x5A (jumper-selectable)
⚙️ 4 jumpers for SDA, SCL, INT and address configuration
✂️ Cut jumpers to disable 10k pull-up resistors if needed
⚡ Operates between 2.5V and 3.6V, no onboard regulation
📉 VREG tied to ground via 0.1μF capacitor (limits low-voltage mode)
📏 Board size: 3cm × 2cm – fits tight spaces easily
📦 Includes: 1 × MPR121 Breakout V12 Touch Sensor Modul

Add 2,910.00৳  to cart and get free shipping!

Out of stock

Description

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:
1 x New MPR121 Breakout V12 Capacitive Touch Sensor Controller Module I2C keyboard

Reviews (0)

Reviews

There are no reviews yet.

Be the first to review “MPR121 Breakout V12 Capacitive Touch Sensor Controller Module I2C Interface keyboard Development Board”

Your email address will not be published. Required fields are marked *

Shipping & Delivery