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HC-SR04--x2--WeMos-D1-Mini-Shield/README.md at master · aaronjasso/HC-SR04--x2--WeMos-D1-Mini-Shield · GitHub
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Amazon.com: HiLetgo OTA WeMos D1 R2 CH340 WiFi Development Board ESP8266 ESP-12F For Arduino IDE UNO R3 : Electronics
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WeMos D1 Mini ESP8266 ESP-12F ESP12 Module WiFi Development Board Micro USB 3.3V Based On ESP-8266EX 11 Digital Pin For Arduino - AliExpress
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