Introduction:
The MPR121 is the second generation capacitive touch sensor controller after the
initial release of the MPR03x series devices. The MPR121 features increased
internal intelligence, some of the major additions include an increased
electrode count, a hardware configurable I2C address, an expanded filtering
system with debounce, and completely independent electrodes with
auto-configuration built in. The device also features a 13th simulated sensing
channel dedicated for near proximity detection using the multiplexed sensing
inputs.
Feature:
1. Versatile Control: This controller supports up to 12 independent electrodes,
allowing you to handle multiple touch inputs simultaneously. Furthermore, it
includes an additional analog 13th electrode for added flexibility.
2. LED Driver Integration: With 8 built-in LED driver pins, this controller
offers the convenience of driving LEDs directly from the board. When not
configured as electrodes, these pins can be utilized to power and control LEDs
effortlessly.
3. Easy Customization: The board incorporates four default jumpers at the bottom
for quick configuration. By connecting the ADD pin to ground using one of the
jumpers, the chip's default I2C address is set to 0x5A. However, if you require
a different address, simply open the jumper and connect ADD to an alternate pin,
ensuring proper connections with SDA, SCL, and interrupt pins via 10k pull-up
resistors.
4. Wide Voltage Range: This controller operates within a voltage range of 2.5 -
3.6VDC, providing compatibility with various power sources for seamless
integration into your application. Please note that the VREG pin must be
connected to ground through a 0.1uF capacitor for reliable operation, preventing
low-power mode functionality (1.71-2.75VDC) unless modifications are applied to
the circuit board.
5. Low Power Consumption: Designed with energy efficiency in mind, this
controller boasts minimal power consumption. Its operating voltage spans from
1.71V to 3.6V, optimizing power usage while ensuring reliable touch sensing
performance. It utilizes the widely accepted I2C bus interface and offers
interrupt output for easy integration with other devices.
ماژول سنسور لمسی خازنی (تاچ) - مدل MPR121 (برد مشکی)
- تولید کننده: China - A
- دسته بندی ها:
- - سنسور و ماژول تاچ ، اثر انگشت و صفحه کلید (کیپد)
- کد محصول: RG_110_14D024_000000_14270
- موجودی: 44
-
قیمت پایه : 440,000ریال
ارسال رایگان سفارشات بالای 3 میلیون تومان
تعداد بازدید: 1015
پرسش و پاسخ مشتریان
برچسب ها: ماژول سنسور لمسی خازنی (تاچ) - مدل MPR121, RG_110_000000_000000_14270, سنسور و ماژول تاچ ، اثر انگشت و صفحه کلید (کیپد)