Plot twist: this deal is actually real: $6.19 (Banggood). AP / STA / AP+STA modes available., AT commands firmware. New IC ESP8266ex, 1MB (8Mbit) Flash size., Very simple AT commands / easy to use., Low-power consumption and small, Internal LWIP interface., Only four pins interface / VCC-3V3 / GND / TXD and RXD..
Updated: 01-08-2025
Banggood
Warehouse in China.
Link: ESP8266 ESP-01S Remote Serial Port WIFI Transceiver
Price: $6.19
Additional Banggood coupons:
1. First page
2. Second page
Aliexpress
There’re some similar (or not) items on Aliexpress
You can use link bot to get even lower price:
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Price history and price alert
Price history is not available for this item (not enough database records)! The lowest price was $3.39 though.
You can set price alert (for Banggood and Aliexpress (only if product name will be the same as on Banggood and I will post it on social media though, so it’s more like Banggood price alert)).