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R3 Development Board WeMos WiFi R3 ATMEGA328P Chip CH340G For UNO R3 Arduino Development Board WeMos ESP8266
Quick answer
Is $3.90 a good price for R3 Development Board WeMos WiFi R3 ATMEGA328P Chip CH340G For UNO R3…?
Yes: at $3.90 it is 7% below the typical price of $4.19 that DipScout measured over the last 14 days, a real drop. Tracked since Oct 22, 2026, it ranged from $3.90 to $4.19.
$3.90
Today it costs $3.90 on AliExpress. Since Oct 22, 2026, when we started tracking it, it ranged from $3.90 to $4.19. It is 7% below the typical price of $4.19 that we measured: a real drop.
You save $0.29 · was $4.19
Drop confirmed by our price history: we tracked the price over the last 14 days and the typical price (time-weighted median) was $4.19.
View on AliExpressThe price above is the last recorded reading, not a live checkout lookup.
Price history
Last reading$3.90on Nov 7
Lowest$3.90Nov 4 to Nov 7
Highest$4.19Oct 22 to Nov 2
typical price: median of the last 14 daysTracked since Oct 22 · 2 changesHover over the chart to see each price.Tap the chart to see each price.
See every price change
| When | Price | Change |
|---|---|---|
| Nov 4, 18:03 UTC | $3.90 | −2% |
| Nov 2, 10:05 UTC | $3.98 | −5% |
| Oct 22, 15:42 UTC | $4.19 | start |
| Store | Hornaxy Electronic Store |
|---|---|
| Positive feedback (AliExpress) | — |
| AliExpress category | Electronic Components & Supplies › Active Components |
| Recorded readings | 3 |
| First seen | |
| Last reading |