Jarvis, buy it. It’s only $6.19 with a code. 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:
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:
| Image | Product (link) | Price | Coupons |
|---|---|---|---|
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1/5/10PCS ESP8266 WIFI Wireless Module ESP-01 ESP-01S IoT Remote Serial Port Wireless Transceiver Development Board Adapter 2.4G | $0.95 | – |
Click here to search by yourself. Here are coupons that you can use.
Price history and price alert
It doesn’t make sense to generate price history chart, because there is one price record which is: $3.39.
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)).