1.You can contact the customer service. for any question regarding the product.
2.Ask the question in English to get answer faster.
3.Keep your question short and to the point.
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A part of the review has been auto-translated.
One module contains PCF 8574T and address is 0x27. Two remaining with IC's PCF 8574AT have addresses 0x3F.
muito bom o produto, chegou bem embalado e conforme o prometido, recomendo o vendedor.
Tips:For questions about your order, place of delivery, product discount, taxation, delivery time, warranty, shipping, payment, exchange rate, and other questions unrelated to the product, please contact customer service.
A part of the QA has been auto-translated.