Description: Package 1 UNO R3 ATmega328P 1 USB Cable 1 Arduino Clear Case Description: R3 is a new easy-to-use open-source controller launched in 2012. Compared with uno, there is no big change in hardware. The big difference lies in the circuit part of USB to serial port, which is replaced by an atmega16u2 single chip microcomputer, so the cost is also different. The software part is the same as before, and there is no big change. Function: 1. Pin change: two I2C pins (SDA and SCL, only copy of analog 4 and 5, not additional I2C interface) are added beside aref pin, In addition, two pins are added next to reset. One is ioref, which allows the expansion board to adapt to the on-board voltage. This pin only tells the current on-board voltage of the expansion board (for example, uno is 5V, which can be regarded as the copy of the power supply pin, and does not provide level pull-up). The other is the standby pin. 2. More stable reset circuit. The reset key position has also changed, and it has been moved to the corner of the board near the USB interface, which is more convenient to press. 3. Atmega16u2 replaces 8u2, which doesn't mean that R3 with 16K flash can make your code run faster. This update is served by USB interface chip. Theoretically, it allows uno to simulate USB HID, such as MIDI/Joystick/Keyboard. Performance description: Digital I / O digital input / output 0 ~ 13. Analog I / O Analog Input / output 0 ~ 5. Support ISP download function. Input voltage: no external power supply is needed when the computer is connected to USB, external power supply is 5V ~ 9V DC voltage input. Output voltage: 5V DC voltage output and 3.3V DC voltage output. ATMEL atmega328 microcontroller is adopted. Contact Us (1) We strive to provide the best service as possible, commit to resolve all problems and give fast shipping. (2) Please contact us before giving any negative feedback. If you have any questions, please do not hesitate to contact us. Payment (1) All payments must be prepaid and cleared. (2) We only accept Paypal payment. After checkout, please make through Paypal service. Shipping (1) Buyer is responsible for any incorrect address and undeliverable address. We reserve the right to charge the shipping fee again for returned items due to wrong address. We take the paypal address as your shipping address. Please make sure your shipping address is correct during check out. (2) Your order will be shipped within 24 hours after payment is cleared (Sat. & Sun. excluded and holidays) (3) We ship orders using USPS (United States Postal Service). The shipment usually takes 2-4 business days, excluding holidays, Saturday and Sunday (4) Local pick up is not available. (5) No International Shipping. Warranty (1) This product has a 30-day warranty. (2) Warranty does not extended to any products that are buyer's negligence, abuse, misuse, improper installation or physically damaged on the buyer or user's part. (3) Please contact us before making a replacement or refund. (4) In case of returning, buyer must pay their own postage and shipping fees for replacement or refund. We will provide replacement or refund after product is received.
Price: 14.98 USD
Location: Ontario, California
End Time: 2024-08-14T05:19:04.000Z
Shipping Cost: 0 USD
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Item Specifics
Restocking Fee: No
Return shipping will be paid by: Buyer
All returns accepted: Returns Accepted
Item must be returned within: 30 Days
Refund will be given as: Money Back
Type: Board
Compatible Model: R3 ATmega328P
Compatible Product: Cable
Brand: Unbranded
