PCF8574 I2C Interface 8bit IO MCU Expansion Board I/O Expander I2C Bus Evaluation Development Module AVR STM8 C8051F For Arduino
Quick answer
Is $1.55 a good price for PCF8574 I2C Interface 8bit IO MCU Expansion Board I/O Expander I2C…?
Too early to tell: DipScout has tracked this price for 5 days, and comparing it with a typical price takes at least 7 days. Tracked since Oct 29, 2026, it ranged from $1.55 to $1.71.
$1.55
Today it costs $1.55 on AliExpress. Since Oct 29, 2026, when we started tracking it, it ranged from $1.55 to $1.71. We haven't tracked it long enough yet to say whether it's on sale.
We have tracked this product for 5 days; confirming a drop takes at least 7 days. The store advertises "was $3.70", but that is the store's own claim; we only state discounts our price history proves.
View on AliExpressThe price above is the last recorded reading, not a live checkout lookup.
Price history
Today$1.55lowest ever seen
Lowest$1.55since Nov 2
Highest$1.71Oct 29 to Oct 31
Tracked since Oct 29 · 2 changesHover over the chart to see each price.Tap the chart to see each price.
See every price change
| When | Price | Change |
|---|---|---|
| Nov 2, 01:14 UTC | $1.55 | −9% |
| Oct 31, 09:08 UTC | $1.70 | −0.6% |
| Oct 29, 20:06 UTC | $1.71 | start |
| Store | HONGWEIWEI Factory Store |
|---|---|
| Product rating | — |
| Store rating | — |
| AliExpress category | Electronic Components & Supplies › Active Components |
| Recorded readings | 3 |
| First seen | |
| Last reading |
Also sold by 1 other store
Same title and category on AliExpress, cheapest first. Each store has its own price and history; check the variant and shipping.
| Stone's Store | $1.27 · 777 sold |
|---|