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Description
1. This is a breakout board for Freescale's MPR121QR2. The MPR121 is a capacitive touch sensor controller driven by an I2C interface.
2. 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.
3. 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.
4. 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).
Specification
1. Brand: Landa tianrui
2. Model: LDTR-WG0208
3. Quantity: 1 piece
4. Color: Black
5. Material: Alloy + Plastic
6. Application: Capacitive Touch Sensor Controller
7. Working Voltage: 2.5-3.6V
8. Dimensions: 6 cm x 3 cm x 2 cm
9. Weight: 4g
10. Packing List:
- 1 x MPR121 capacitive touch sensor module
- 1 x Straight Pin
2. 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.
3. 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.
4. 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).
Specification
1. Brand: Landa tianrui
2. Model: LDTR-WG0208
3. Quantity: 1 piece
4. Color: Black
5. Material: Alloy + Plastic
6. Application: Capacitive Touch Sensor Controller
7. Working Voltage: 2.5-3.6V
8. Dimensions: 6 cm x 3 cm x 2 cm
9. Weight: 4g
10. Packing List:
- 1 x MPR121 capacitive touch sensor module
- 1 x Straight Pin
Cancellation Policy:
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Warranty:
All our products comes with a default 90 days seller replacement warranty against manufacturer defect as a service and reassurance to our customers. Order2india will take care of all logistics to and from the manufacturer/supplier for replacement . If within 90 days of delivery ,any problem is found with our product , please contact our customer support and we would replace it for you absolutely free.
Return Policy
Our return policy is outlined below. The policy reflects the reality that our products are sourced from suppliers located outside India and is formulated keeping in mind the costs and time involved in the logistics, both in the forward direction (i.e. shipping products to India from the suppliers) and reverse direction (i.e. shipping returned products back to the suppliers).Certain products are not eligible for return or refund as below
Return Process & Timeline
For eligible products, the policy is summarized below. Please note that Returns that do not meet the Return Process and Timeline below will not be eligible for a refund.
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Allowed Time Line |
Return Process |
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Due to Damage in transit |
Within 24 hours of Delivery |
Inspect package before taking Delivery and if damaged REJECT package and DO NOT take delivery from the courier and Send email to support@order2india.com within 24 hours of rejecting the delivery so we can process your refund. |
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Dead on Arrival or mal-functioning product |
Within 15 days of Delivery |
Contact us or email us at support@order2india.com within 15 days of delivery with details of the problem. |
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Incorrect Order (e.g. model, brand, color or size different from what was ordered) |
Within 15 days of Delivery |
Contact us or email us at support@order2india.com within 7 days of delivery with details of the problem. |
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If you receive a parcel with missing, incorrect, or secondary packing items, please contact us within 7 days of delivery with relevant proof. Order2india will assess the situation and provide resolution based on the extent of the damage.
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