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The 5V dual WiFi relay module uses ESP-01 as the WiFi module and is compatible with 8 bit MCU chip. Onboard ESP-01 WiFi modules and high performance microprocessor STM8S103. 2 the module has 2 working modes.
When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.