GPIO Expansion Board AD/DA Detection Digital 2 Analog for Raspberry Pi 4B/3B+/3B

Description

Product Description
GPIO Expansion Board Module Fit for Raspberry Pi Voltage Detection AD/DA Digital to Analog Conversion for Raspberry Pi 4B / 3B+ / 3B
Description:
1. The digital-to-analog conversion expansion board specially designed for Raspberry Pi can make up for the lack of control of analog quantity by Raspberry Pi, and select the right accuracy to meet most of the daily development needs.
2. Make full use of the Raspberry Pi GPIO resources to expand all the Raspberry Pi GPIO pins.
3. Through the PCF8591 of the I2C interface, the analog IO is simulated and expanded without occupying the Raspberry Pi GPIO resources.
4. Resource integration, optimizing product appearance, and improving development efficiency.
5. Gold-plated pin headers, sophisticated materials, stable electrical performance.
6. Optimized PCB trace layout and component layout, the port labeling is clearer and clearer.
Feature:
1.Output voltage: 3.3V/5V (IO port VCC: 3.3V)
2.Analog interface:
Input: Four-way analog quantity is converted into digital quantity AD input
Output: One digital analog is analog DA output
3.Digital interface: 27 digital IO
4.I2C interface: 3 channels of I2C (BCM2, 3 pins)
5.Serial port: 1 channel serial port (BCM14 pins)
6.SPI interface: 1 channel SPI (BCM7, 8, 9, 10, 11 pins)
7.Pin: Raspberry Pi GPIO
8.Size: 35*56*24
Note: Raspberry Pi Enclosure and Raspberry Pi shown in images are NOT included
Package Included:
1 × Raspberry Pi AD/DA expansion board
4 × Double pass copper post
9 × screw
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Shipping Time
Usually ,Parcel will be delivered 2-7 working day include Handling time.
Sometimes shiping time may has a little delay, such as Bad wether,Holidays
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When you receive your purchase if you are not 100% satisfied, please sent me ebay message and we will do our best to make you happy. If you still want to return your purchase, simply ship the item(s) back to us and we will refund your original purchase price and the original shipping charge.
Buyers are responsible for the postal cost of returning the items.
We must be notified of the intent to return your item within 30 days of receiving the item.
Items returned must be in the same condition that they were received.
How to return
1,Please ask us for return address .
2,Shipping back the package .
The RMA#(Return Merchant Authorization Number = Your ebay ID) must be clearly written on the return package ,Otherwise the package will be refused.
3,Sent us the return tracking number.
4,All returns will be inspected prior to a credit being issued.
Sent ebay message in English
If you have any questions, our Customer Service staffs welcome you to sent me ebay message.
We strive to answer all questions and resolve any problems as quickly as possible.
Business Hours: HongKong Time GMT+8:00
Monday-Saturday 9:00-17:00
About Us
About Item
All items sold by us are being described to the best of our abilities, as accurate as possible, and with utmost conscientiousness on our part.
However, to avoid any potential oversights, I respectfully request your assistance in helping us to make this a mutually satisfactory transaction by THOROUGHLY reviewing item description and photos, and asking all questions PRIOR TO BIDDING.
Customer Satisfactory
1.We back our commitment with superb service, 100% full money back and a customer satisfaction guarantee.
2.I am here and ready to assist you with any questions or concerns you might have before or after the purchase.
3.My goal is to make sure you are a happy customer and pleasant shopping with us.
Feedback
If you are satisfied with the purchase and our total service, your comment is very important in our business success. Please take a minute to leave us a positive feedback with an overall Detailed Selling Rating (DSR) of 5.
Our eBay account setup auto feedback, so eBay system gives you automatically Positive feedback back after your positive feedback left.
If you plan to give us a neutral/negative feedback Or open ebay/paypal case, please write to us immediately so that we can do our best to resolve your problem.
Payment
1.We only accept PayPal.
2.PayPal is the only online payment method we accept. Please make sure you have a valid/confirmed PayPal account prior bidding.
3.Payment must be made within 3 days of the auction end time. Non-Paying bidders will be reported.
4.Our eBay account automatically open a dispute for a unpaid item, when we don't receive your payment after 4 days.
Shipping
United States Buyers
Parcel will via USPS or UPS from us United States warehouse
Shipping Time
Usually ,Parcel will be delivered 2-7 working day include Handling time.
Sometimes shiping time may has a little delay, such as Bad wether,Holidays
Terms Of Sale
We stand behind everything that we sell and will do everything possible to assure you are satisfied.
When you receive your purchase if you are not 100% satisfied, please sent me ebay message and we will do our best to make you happy. If you still want to return your purchase, simply ship the item(s) back to us and we will refund your original purchase price and the original shipping charge.
Buyers are responsible for the postal cost of returning the items.
We must be notified of the intent to return your item within 30 days of receiving the item.
Items returned must be in the same condition that they were received.
How to return
1,Please ask us for return address .
2,Shipping back the package .
The RMA#(Return Merchant Authorization Number = Your ebay ID) must be clearly written on the return package ,Otherwise the package will be refused.
3,Sent us the return tracking number.
4,All returns will be inspected prior to a credit being issued.
Contact Us
Sent ebay message in English
If you have any questions, our Customer Service staffs welcome you to sent me ebay message.
We strive to answer all questions and resolve any problems as quickly as possible.
Business Hours: HongKong Time GMT+8:00
Monday-Saturday 9:00-17:00
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